565:. He has shown that calcium ions and protons are essential for growth. The intracellular free calcium ions exist in a gradient dropping from 3000 nM at the tip to 200 nM 20 ΞΌm from the tip and the intracellular H gradient falls from pH 6.8 at the tip to pH 7.5 10β30 ΞΌm from the tip. The higher concentrations of intracellular Ca and H at the tip result from the localization of the influx of these ions at the tip. The protons are effluxed at a region on the sides of the tube that corresponds to the location of the intracellular alkaline band. Energy is required for pollen tube growth and an H-ATPase may mediate the efflux. Hepler has shown that the magnitude of the intracellular calcium and proton gradients and the extracellular fluxes of these ions oscillate with a period of 15-50 s. This period is identical to the period of oscillation in the rate of pollen tube growth, however, the intracellular calcium peak follows the growth rate peak by 1β4 seconds, and the extracellular calcium peak follows the growth rate peak by 11β15 seconds. The delay between the extracellular and intracellular calcium peaks indicates that calcium ions do not immediately enter the cytoplasmic pool. Hepler postulates that the extracellular influx of calcium is not governed by the plasma membrane but by changes in the ion-binding properties of the pectin within the cell wall. The pectin is secreted in its uncharged methylester form. Subsequently, a pectin methylesterase in the wall results in the de-esterification of the methyl groups that yields carboxyl residues that bind calcium and form calcium-pectate cross-bridges. This calcium binding may account for the bulk of the observed extracellular current. The intracellular calcium gradient may direct the location of secretion of cell wall components that define the direction of pollen tube growth.
574:
which will incorporate more methylesterified pectins and pectin methylesterase, grows away from the stiffened flanks composed of calcium pectate. The external Ca concentration is critical. When the external Ca concentration is below 10 ΞΌM, the amount of calcium pectate is so low that the cell wall is too weak and the pollen tube bursts. When the external Ca concentration is above 10 mM, the amount of calcium pectate is so high that the cell wall is too stiff and the pollen tube will not grow.
354:
one summer (1979) while working in the library at the Marine
Biological Laboratory. I turned to the library's volume of the Annual Review of Plant Physiology that contained our paper and when I put the volume down, it literally fell open at our article; worn edges on the pages and the penciled corrections of all the misspellings and punctuation errors indicated that the chapter had been thoroughly perused."
274:. He was an associate professor from 1977 to 1980, a professor from 1980 to 1989, and became the Ray Ethan Torrey Professor in 1989 and the Constantine J. Gilgut Professor in 1998. Hepler retired from the Biology Department as the Constantine J. Gilgut and Ray Ethan Torrey Professor Emeritus, although he continues to do research. Hepler spent many summers teaching and doing research at the
31:
497:
may function in controlling the concentration of free calcium in the mitotic apparatus. Along with Susan Wick and Steve
Wolniak, Hepler showed that the endoplasmic reticulum contained stores of calcium and suggested that the endoplasmic reticulum may locally control the calcium concentration and thus
393:
cells to differentiate into new tracheary elements, Hepler showed that cytoplasmic microtubules were localized specifically in the cortical cytoplasm immediately over the bands of new secondary wall thickenings. Moreover, Hepler discovered that the microtubules were oriented parallel to the cellulose
353:
Hepler described his realization of the influence a review he and
Palevitz wrote on microtubules and microfilaments "to introduce new thoughts and promising avenues for future research" had with his characteristic self-deprecating sense of humor: "I became aware that the review was being read widely
329:
Hepler's scientific method is to know thoroughly the classical botanical literature and then develop or apply modern physico-chemical techniques to answer salient and extensive biological questions using plants that are well-suited to answer those questions. In so doing, Hepler opened whole areas of
573:
of its Ca. This would result in a slightly delayed yet increased growth rate. The removal of the methoxy groups in the pectins at the flanks of the apical dome unmasks their negatively charged carboxylate groups. The anionic homogalacturonans then bind Ca and become stiffer as the new apical dome,
568:
The intracellular components that contribute to pollen tube growth include the actin-mediated transfer of Golgi-derived secretory vesicles filled with methylesterified homogalacturonans and pectin methylesterase synthesized on the ER to the growing tip. The secretion of the vesicles at the growing
403:
in a pattern of radial micellation that is necessary for stomatal function. Hepler, along with the husband and wife team of Dale
Callaham and Sue Lancelle, developed a method to achieve rapid freeze fixation of particularly small plant cells that showed that cortical microtubules are closely
625:
The Plant
Biology Graduate Program at the University of Massachusetts Amherst held a symposium on October 14, 2017, entitled: Capturing the dynamic architecture of cells: Honoring the high-resolution career of Peter Hepler. Friends, family, students, and colleagues celebrated his life and
201:
and
Rebecca Orpha Peterson Hepler. He married Margaret (Peggy) Dennison Hunt on March 7, 1964. They have three children: Sarah, Anna and Lukas. Peter and Peggy have six grandchildren: Finn, Leif, Louisa (Lulu), Jesse, Marit, and Haakon. In an interview published in the Newsletter of the
569:
tip anticipates the increase in growth rate, indicating that the turgor pressure driven intussusception of the methylesterified pectin into the cell wall at the growing tip and its subsequent demethylesterification by pectin methylesterase may relax the cell wall by robbing the
2164:
Torrey, J. G., D. E. Fosket and P. K. Hepler (1971). "Xylem
Formation: A Paradigm of Cytodifferentiation in Higher Plants: Plant cells divide and differentiate under the control of changing hormone levels. Xylem offers a model tissue for the study of these cellular events".
398:
and Green established the importance of cortical microtubules in controlling the alignment of cellulose microfibrils in the cell wall. Further work with Barry
Palevitz showed that microtubules were involved in orienting the cellulose microfibrils in the walls of
480:
While Hepler was successful in identifying an aggregation of material that possessed microtubule-organizing capacity, he was not able to specify the biophysical mechanisms involved in organization. After
Richard Weisenberg discovered that
342:, the role of calcium in plant development and in the development of techniques useful for answering questions using light and electron microscopy. Hepler's scientific publications with Barry A. Palevitz are notable for quoting
2912:
442:
Hepler realized that microtubules were dynamic structures that were deployed in various locations throughout the cell, and became interested in the mechanisms involved in microtubule organization in cells that lacked a
595:
elements, on the roles of microtubules and microfibrils, and on the control of the orientation of mitotic spindles in differentiating cells have provided new insights which hold great promise for the future."
622:
A scholarship was named in honor of Hepler. The Peter K. Hepler
Research Scholarship supports undergraduate research on a biological question in a laboratory or field setting outside of the United States.
609:
for his contributions as "one of the most influential plant cell biologists, who has continuously and continues to achieve breakthroughs that have guided research directions of numerous plant scientists."
477:
of the final division which gives rise to the spermatids, the flocculent material near each nucleus condenses to give rise to two blepharoplasts, which then separate, one going to each spermatid.
3743:
FeijΓ³, J. A., Sainhas, J., Holdaway-Clarke, T., Cordiero, M. S., Kunkel, J. G., and Hepler, P. K. (2001). "Cellular oscillations and the regulation of growth: The pollen tube paradigm".
587:, because his "penetrating analytical and experimental studies of the ultrastructure of differentiating cells have made a significant and lasting contribution to our perception of
498:
the polymerization/depolymerization of microtubules. Subsequently, Hepler, along with Dale Callaham, Dahong Zhang, and Patricia Wadsworth, observed calcium ion transients during
4350:
2247:
Palevitz, B. A.; P. K. Hepler (1976). "Cellulose microfibril orientation and cell shaping in developing guard cells of Allium: The role of microtubules and ion accumulation".
4380:
1679:
Zhang, D., P. Wadsworth and P. K. Hepler (1993). "Dynamics of microfilaments are similar, but distinct from microtubules during cytokinesis in living, dividing plant cells".
606:
439:
during the development of the new cell wall, where microtubules from both sides of the phragmoplast were seen to overlap with one another in the plane of the cell plate.
4385:
4121:
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1824:
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1665:
1446:
1028:
970:
688:
545:
Hepler has shown that calcium ions are a central regulator of plant growth and development specifically demonstrating that calcium is important for tip growth and in
2086:
Hepler, P. K.; E. H. Newcomb (1964). "The Fine Structure of Young Tracheary Xylem Elements Arising by Redifferentiation of Parenchyma in Wounded Coleus Stem".
619:
for his contributions to plant science, including publishing the first report suggesting a co-alignment of microtubules with cell wall cellulose microtubules.
4355:
3208:
431:
and Andrew Bajer using polarized light microscopy, Hepler used electron microscopy to elucidate the nature of the microtubule/chromosome attachments at the
4345:
1268:
Palevitz, B. A.; P. K. Hepler (185). "Changes in dye coupling of stomatal cells of Allium and Commelina demonstrated by microinjection of Lucifer yellow".
206:, Hepler was asked, "What is your most treasured possession?" He answered, "My family; but I don't possess them." Peter and Peggy Hepler live on a farm in
561:
Hepler's research is currently aimed at finding the ionic and molecular components that make up the pacemaker that regulates the oscillatory growth of
4335:
3470:
Saunders, M. J.; P. K. Hepler (1981). "Localization of membrane-associated calcium following cytokinin treatment in Funaria using chlortetracycline".
4375:
1311:
Turgeon, R.; P. K. Hepler (1989). "Symplastic continuity between mesophyll and companion cells in minor veins of mature Cucurbita pepo L. leaves".
502:
and showed that the microinjection of calcium ions into the mitotic spindle does regulate the depolymerization of microtubules and the movement of
2290:
Lancelle, S. A., M. Cresti and P. K. Hepler (1987). "Ultrastructure of the cytoskeleton in freeze-substituted pollen tubes of Nicotiana alata".
271:
235:
162:
129:
935:
VandenBosch, K. A., W. Becker and B. A Palevitz (1996). "The natural history of a scholar and gentleman: A biography of Eldon H. Newcomb".
599:
203:
3867:"Pollen tube growth and the intracellular cytosolic calcium gradient oscillate in phase while extracellular calcium influx is delayed"
773:
311:
4370:
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3586:
1800:
219:
3327:
Wayne, R.; P. K. Hepler (1984). "The Role of Calcium Ions in Phytochrome-mediated germination of spores of Onoclea sensibilis L.".
854:
1207:
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242:. Hepler then returned to the University of Wisconsin for a postdoctoral fellowship and then became a postdoctoral fellow with
3756:
612:
In 2011, Hepler was honored with the Charles Reid Barnes Life Membership Award from the American Society of Plant Biologists.
485:
was sensitive to calcium concentration, Hepler realized that he had already seen a close association between elements of the
473:
of the penultimate division, flocculent material appears near clefts on the distal surfaces of the daughter nuclei. During
1460:
Zeiger, E.; P. K. Hepler (1977). "Light and stomatal function: blue light stimulates swelling of guard cell protoplasts".
675:
The structure and role of membranes in the mitotic apparatus. in: International Cell Biology 1980β1981, H.G. Schweiger, ed
444:
2913:"Modulation of anaphase spindle microtubule structure in stamen hair cells of Tradescantia by calcium and related agents"
1233:
Hepler, P. K.; E. H. Newcomb (1967). "Fine structure of cell plate formation in the apical meristem of Phaseolus roots".
4365:
4210:
3038:"Identification of actin in situ at the ectoplasm-endoplasm interface of Nitella. Microfilament-chloroplast association"
584:
275:
198:
3623:
Holdaway-Clarke, T. L., and Hepler, P. K. . (2003). "Control of pollen tube growth: Role of ion gradients and fluxes".
529:, giving the characteristic arrowhead arrangement. The actin microfilaments had the correct polarity to be part of the
616:
223:
158:
66:
3948:"The apical actin fringe contributes to localized cell wall deposition and polarized growth in the lily pollen tube"
2789:"Regulation of anaphase chromosome motion in Tradescantia stamen hair cells by calcium and related signaling agents"
482:
2840:"Microtubule dynamics in living dividing plant cells: Confocal imaging of microinjected fluorescent brain tubulin"
1403:
Zeiger, E., W. Moody, P. Hepler and F. Varela (1977). "Light-sensitive membrane potentials in onion guard cells".
161:(born 1936) is the Constantine J. Gilgut and Ray Ethan Torrey Professor Emeritus in the Biology Department of the
279:
2051:
Sinnott, E. W.; R. Bloch (1945). "The cytoplasmic basis of intercellular patterns in vascular differentiation".
394:
microfibrils of the newly formed secondary wall thickenings. This work, along with the studies of Ledbetter and
3682:"Oscillatory increases in alkalinity anticipate growth and may regulate actin dynamics in pollen tubes of lily"
3419:
Saunders, M. J.; P. K. Hepler (1982). "Calcium ionophore A23187 stimulates cytokinin-like mitosis in Funaria".
2628:"Detection of the membrane-calcium distribution during mitosis in Haemanthus endosperm with chlorotetracycline"
4260:
3515:"The effect of 1,4-dihydropyridines on the initiation and development of gametophore buds in the moss Funaria"
2477:
Weisenberg, R. C. (1972). "Microtubule formation in vitro in solutions containing low calcium concentration".
1890:
Lancelle, S. A., D. A. Callaham and P. K. Hepler (1986). "A method for rapid freeze fixation of plant cells".
3563:
143:
1608:"Microtubule dynamics in living dividing cells: Confocal imaging of microinjected fluorescent brain tubulin"
227:
71:
4330:
4009:
McKenna, S.T., Kunkel, J.G., Bosch, M., Rounds, C.M., Vidali, L., Winship, L.J., and Hepler, P.K. (2009).
735:
4285:
4115:
4052:
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3723:
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3239:
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3016:
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2319:
2186:
1919:
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1659:
1440:
1022:
964:
534:
486:
412:
334:
to the macroscopic properties of plant growth, development and function. He also did pioneering work on
207:
2384:"Microtubules and early stages of cell plate formation in the endosperm of Haemanthus katherinae Baker"
250:
from 1966 to 1967, where he continued his investigation of microtubules, focusing on their role in the
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3428:
3098:
2976:
2851:
2486:
2122:
1619:
1469:
1412:
644:
194:
170:
54:
330:
research. Hepler did pioneering work in showing the relationship of the microscopic elements of the
3292:
P. K. Hepler; J. G. Kunkel; C. M. Rounds; L. J. Winship (2012). "Calcium entry into pollen tubes".
1722:"Probing the Plant Actin Cytoskeleton during Cytokinesis and Interphase by Profilin Microinjection"
382:
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267:
125:
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2510:
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1907:
1818:
1493:
1428:
1336:
1293:
1158:
952:
682:
247:
234:
in plant cell development with Eldon H. Newcomb. After receiving his Ph.D., Hepler served at the
3372:"Red Light Stimulates and Increase in Intracellular Calcium in the Spores of Onoclea sensibilis"
451:. In order to understand how microtubule-organizing centers were generated, Hepler examined the
3802:"Perturbation analysis of calcium, alkalinity and secretion during growth of lily pollen tubes"
4103:
4040:
3977:
3907:
3833:
3760:
3711:
3640:
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3401:
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3126:
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3004:
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2820:
2769:
2720:
2657:
2608:
2559:
2502:
2452:
2413:
2356:
2264:
2229:
2138:
1998:
1939:
1869:
1806:
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1751:
1647:
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1532:
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1385:
1328:
1285:
1250:
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1010:
769:
490:
251:
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4022:
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3881:
3823:
3813:
3752:
3701:
3693:
3632:
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3534:
3526:
3479:
3436:
3391:
3383:
3336:
3301:
3272:
3220:
3179:
3171:
3160:"Historical Perspective Essay: Calcium: a central regulator of plant growth and development"
3116:
3106:
3057:
3049:
2994:
2984:
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2859:
2810:
2800:
2759:
2751:
2710:
2702:
2647:
2639:
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2541:
2494:
2444:
2403:
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2348:
2299:
2256:
2219:
2130:
2095:
2060:
2025:
1988:
1980:
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1859:
1851:
1788:
1741:
1733:
1688:
1637:
1627:
1578:
1570:
1524:
1477:
1420:
1375:
1367:
1320:
1277:
1242:
1150:
1116:
1063:
1055:
1000:
944:
885:
711:
526:
461:
111:
86:
1179:
1141:
Hepler, P. K.; B. E. S. Gunning (1998). "Confocal fluorescence microscopy of plant cells".
3680:
Lovy-Wheeler, A., Kunkel, J. G., Allwood, E. G., Hussey, P. J., and Hepler, P. K. (2006).
416:
395:
243:
4235:
583:
In 1975, Hepler was the fourth recipient of the Jeanette Siron Pelton Award given by the
428:
4135:
3432:
3102:
2980:
2855:
2490:
2126:
1623:
1473:
1416:
861:
715:
4098:
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4010:
3972:
3947:
3828:
3801:
3706:
3681:
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3514:
3396:
3371:
3184:
3159:
3062:
3037:
2815:
2788:
2764:
2739:
2715:
2690:
2652:
2627:
2603:
2578:
2554:
2529:
2408:
2383:
1993:
1968:
1583:
1558:
1211:
1068:
1043:
591:
at the cellular level. In particular his work on the ultrastructure of differentiating
370:
3902:
3865:
Holdaway-Clark, T.L., Feijo, J.A., Hackett, G.R., Kunkel, J.G., Hepler, P. K. (1997).
3121:
3086:
2999:
2964:
1864:
1839:
1792:
1746:
1721:
1380:
1355:
1246:
1091:
811:
469:, each of which gives rise to the 9+2 arrangement of microtubules in a cilium. During
4324:
4011:"Exocytosis precedes and predicts the increase in growth in oscillating pollen tubes"
3636:
2874:
2839:
1642:
1607:
790:
588:
518:
456:
408:
283:
182:
3772:
3652:
3456:
3356:
2514:
2150:
2037:
1911:
1497:
1340:
1297:
956:
3499:
2368:
2311:
2276:
1432:
1162:
466:
436:
331:
255:
174:
107:
82:
4311:
3305:
2498:
2432:
2134:
3440:
1481:
369:
In late 1962 and early 1963, Hepler tested the newly developed procedure using a
1720:
Valster, A. H., E. S. Pierson, Valenta, P. K. Hepler and A. M. C. Emons (1997).
1512:
833:
562:
546:
432:
358:
357:
Hepler, along with Ledbetter and Porter, is considered to be a co-discoverer of
343:
335:
231:
147:
4185:
2433:"The blepharoplast of Marsilea: Its de novo formation and spindle association"
1044:"Founders' Review: The Cytoskeleton and Its Regulation by Calcium and Protons"
530:
503:
448:
400:
390:
347:
178:
115:
90:
2691:"Free calcium increases during anaphase in stamen hair cells of Tradescantia"
2864:
1632:
550:
470:
385:
and Bloch, who had shown that wounding the existing tracheary elements in a
317:
259:
4107:
4044:
4026:
3981:
3911:
3837:
3764:
3715:
3697:
3644:
3562:
Hepler, P. K., Lovy-Wheeler, A., McKenna, S. T., and Kunkel, J. G. (2006).
3548:
3491:
3448:
3405:
3348:
3313:
3193:
3175:
2883:
2755:
2706:
2360:
2268:
2233:
2142:
2099:
2002:
1873:
1755:
1651:
1592:
1574:
1489:
1389:
1332:
1289:
1077:
1014:
282:. Hepler also participated in a multiyear international collaboration with
3963:
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3130:
3111:
3071:
3008:
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2824:
2805:
2773:
2724:
2661:
2612:
2563:
2506:
2417:
1810:
1737:
1513:"Blue light-induced, intrinsic vacuolar fluorescence in onion guard cells"
1254:
210:
that was established in 1740 and is now a part of the Kestrel Land Trust.
30:
2928:
2594:
2545:
2456:
2448:
2399:
1984:
1855:
1692:
1536:
702:
Hepler, P. K.; B. A. Palevitz (1974). "Microtubules and microfilaments".
494:
474:
4089:
3530:
3224:
3085:
Kersey, Y. M., P. K. Hepler, B. A. Palevitz, and N. K. Wessells (1976).
3053:
2643:
2579:"Localization of Ca++-containing antimonate precipitates during mitosis"
2178:
1371:
1059:
3893:
3483:
3340:
3261:"Sperm Delivery in Flowering Plants: The Control of Pollen Tube Growth"
2352:
2303:
2260:
2072:
2029:
1903:
1528:
1324:
1281:
1154:
948:
499:
239:
166:
3387:
2224:
2207:
2016:
Newcomb, E. H. (1996). "A career in science: Fulfillment of a dream".
1005:
988:
860:. No. 31(5), 22. APBS News September/October 2004. Archived from
3757:
10.1002/1521-1878(200101)23:1<86::AID-BIES1011>3.0.CO;2-D
3578:
1424:
374:
3885:
3277:
3260:
3207:
Miller, D. D., D. A. Callaham, D. J. Gross and P. K. Hepler (1992).
2064:
2113:
Green, P. B. (1962). "Mechanism for plant cellular morphogenesis".
2339:
InouΓ©, S.; A. Bajer (1961). "Birefringence in endosperm mitosis".
592:
515:
405:
339:
1559:"Calcium: An essential regulator of plant growth and development"
987:
Hepler, P. K., J. D. Pickett-Heaps and B. E. S. Gunning (2013).
910:
4074:"Control of cell wall extensibility during pollen tube growth"
297:
from 1998 to 2000. He has been on the editorial boards of the
4261:"Hepler Named Honorary Fellow of Royal Microscopical Society"
4161:"Hepler named fellow of American Society of Plant Biologists"
1356:"Production of Guard Cell Protoplasts from Onion and Tobacco"
989:"Some retrospectives on early studies of plant microtubules"
270:, Hepler joined the faculty in the Botany Department at the
1787:. Methods in Cell Biology. Vol. 61. pp. 413β437.
2740:"Calcium transients during mitosis: Observations in flux"
2626:
Wolniak, S. M., P. K. Hepler, and W. T. Jackson (1980).
465:. The blepharoplast in each spermatid generates 100β150
226:
in 1958 and earned his Ph.D. in plant cell biology from
165:
who is notable for his work on elucidating the roles of
1210:. ASPB Newsletter 33(3), 26. April 2010. Archived from
4072:
Hepler, P.K., Rounds, C.M., and Winship, L.J. (2013).
3946:
Rounds, C.M., Hepler, P.K., and Winship, L.J. (2014).
3573:. Plant Cell Monographs. Vol. 3. pp. 47β69.
435:
as well as the arrangement of the microtubules in the
3800:
Winship, L.J., Rounds, C., and Hepler, P. K. (2017).
2963:
Palevitz, B. A., J. F. Ash, and P. K. Hepler (1974).
2838:
Zhang, D. H., P. Wadsworth, and P. K. Hepler (1990).
598:
In 2007, Hepler was named an inaugural Fellow of the
3209:"Free Ca gradient in growing pollen tubes of Lilium"
2911:
Zhang, D. H., P. Wadsworth and P. K. Hepler (1992).
2530:"Membranes in the mitotic apparatus of barley cells"
673:
Hepler, P. K., S. M. Wick and S. M. Wolniak (1981).
615:
In 2015, Hepler was named an Honorary Fellow of the
222:
in 1954. He received his B.S. in chemistry from the
193:
Peter Klock Hepler was born on October 29, 1936, in
1785:
Methods for Studying Cell Division in Higher Plants
1783:Vos, J. W., A. H. Valster and P. K. Hepler (1988).
607:
American Association for the Advancement of Science
525:internodal cells by showing that the bundles bound
521:in bundles at the ectoplasm-endoplasm interface of
139:
121:
103:
78:
62:
37:
21:
4211:"Hepler wins national award for plant discoveries"
1606:Zhang, D., P. Wadsworth, and P. K. Hepler (1990).
911:"Kestrel Land Trust: Conserve the Valley You Love"
734:Hepler, P. K.; B. A. Palevitz (August 11, 1986).
493:and in the phragmoplast and suggested that these
3087:"Polarity of actin filaments in Characean algae"
1840:"Behavior of Microtubules in Living Plant Cells"
377:post-fix to study plant cell structure using an
605:In 2010, Hepler was elected as a Fellow of the
1969:"A 'microtubule' in plant cell fine structure"
8:
4120:: CS1 maint: multiple names: authors list (
4057:: CS1 maint: multiple names: authors list (
3994:: CS1 maint: multiple names: authors list (
3931:: CS1 maint: multiple names: authors list (
3850:: CS1 maint: multiple names: authors list (
3785:: CS1 maint: multiple names: authors list (
3728:: CS1 maint: multiple names: authors list (
3665:: CS1 maint: multiple names: authors list (
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2324:: CS1 maint: multiple names: authors list (
2191:: CS1 maint: multiple names: authors list (
1924:: CS1 maint: multiple names: authors list (
1823:: CS1 maint: multiple names: authors list (
1768:: CS1 maint: multiple names: authors list (
1705:: CS1 maint: multiple names: authors list (
1664:: CS1 maint: multiple names: authors list (
1445:: CS1 maint: multiple names: authors list (
1027:: CS1 maint: multiple names: authors list (
969:: CS1 maint: multiple names: authors list (
687:: CS1 maint: multiple names: authors list (
677:. Berlin: Springer-Verlag. pp. 673β686.
643:Hepler, P. K.; R. O. Wayne (July 26, 1993).
1940:"Poems and Quotations About the MicroWorld"
1121:History of the Marine Biological Laboratory
4381:Fellows of the Royal Microscopical Society
293:from 1994 to 2001 and Associate Editor of
29:
18:
4097:
4034:
3971:
3901:
3827:
3817:
3705:
3538:
3395:
3276:
3183:
3120:
3110:
3061:
2998:
2988:
2873:
2863:
2814:
2804:
2763:
2714:
2651:
2602:
2553:
2407:
2223:
2208:"A Glorious Half-Century of Microtubules"
1992:
1863:
1745:
1641:
1631:
1582:
1379:
1067:
1004:
533:motor that provides the motive force for
4386:Dover High School (New Hampshire) alumni
4312:"Plant Biology Annual Symposium History"
1202:
1200:
1174:
1172:
510:Microfilaments and cytoplasmic streaming
266:. After being an assistant professor at
4265:UmassAmherst News & Media Relations
4215:UmassAmherst News & Media Relations
4165:UmassAmherst News & Media Relations
2206:Wasteneys, G. O.; F. Brandizzi (2013).
1967:Ledbetter, M. C.; K. R. Porter (1963).
982:
980:
766:Methods in Forcing Rhubarb: M.S. Thesis
635:
230:in 1964, studying the role of cortical
4351:University of WisconsinβMadison alumni
4286:"Peter K. Hepler Research Scholarship"
4113:
4050:
3987:
3924:
3843:
3778:
3721:
3658:
3601:
3237:
3136:
3036:Palevitz, B. A.; P. K. Hepler (1975).
3014:
2941:
2889:
2689:Hepler, P. K.; D. A. Callaham (1987).
2667:
2317:
2184:
1917:
1885:
1883:
1816:
1761:
1698:
1657:
1438:
1020:
962:
680:
272:University of Massachusetts at Amherst
236:Walter Reed Army Institute of Research
163:University of Massachusetts at Amherst
130:University of Massachusetts at Amherst
2382:Hepler, P. K.; W. T. Jackson (1968).
1962:
1960:
7:
3513:Conrad, P. A.; P. K. Hepler (1988).
3259:Wilsen, K. L.; P. K. Hepler (2007).
729:
727:
725:
626:contributions to plant cell biology.
600:American Society of Plant Biologists
204:American Society of Plant Biologists
4356:University of Massachusetts faculty
716:10.1146/annurev.pp.25.060174.001521
4346:University of New Hampshire alumni
2965:"Actin in the green alga, Nitella"
2577:Wick, S. M.; P. K. Hepler (1980).
1681:Cell Motility and the Cytoskeleton
1235:Journal of Ultrastructure Research
571:load-bearing calcium pectate bonds
381:. Building on the earlier work by
312:Cell Motility and the Cytoskeleton
307:Journal of Submicroscopic Cytology
289:Hepler was an Associate Editor of
14:
1511:Zeiger, E.; P. K. Hepler (1979).
1354:Zeiger, E.; P. K. Hepler (1976).
1180:"AAAS Members Elected as Fellows"
736:"Microtubules and microfilaments"
704:Annual Review of Plant Physiology
4336:People from Dover, New Hampshire
3637:10.1046/j.1469-8137.2003.00847.x
3370:Wayne, R.; P. K. Hepler (1985).
834:"Anna Hepler Intricate Universe"
791:"America's Youngest Seed Grower"
148:Molecular & Cellular Biology
4376:21st-century American botanists
1838:Hepler, P. K.; J. Hush (1996).
459:in the spermatogenous cells of
74:, Ph.D. Plant Cell Biology 1964
3564:"Ions and pollen tube growth."
2088:Journal of Experimental Botany
645:"This Week's Citation Classic"
423:Microtubules and cell motility
299:Annual Review Plant Physiology
1:
4136:"Jeanette Siron Pelton Award"
3306:10.1016/j.tplants.2011.10.007
2499:10.1126/science.177.4054.1104
2135:10.1126/science.138.3548.1404
1944:Microscopy Society of America
1793:10.1016/S0091-679X(08)61992-5
1247:10.1016/s0022-5320(67)80076-5
541:Calcium and plant development
506:to the poles during mitosis.
445:microtubule-organizing center
404:associated with one another,
4140:Botanical Society of America
3441:10.1126/science.217.4563.943
1482:10.1126/science.196.4292.887
1096:Marine Biological Laboratory
886:"Hepler Family (Pelham, MA)"
585:Botanical Society of America
537:in these giant algal cells.
276:Marine Biological Laboratory
218:Peter Hepler graduated from
4240:Royal Microscopical Society
812:"A Bean Collector's Window"
768:. University of Wisconsin.
617:Royal Microscopical Society
365:Microtubules and cell shape
224:University of New Hampshire
67:University of New Hampshire
4402:
3091:Proc. Natl. Acad. Sci. USA
2969:Proc. Natl. Acad. Sci. USA
2844:Proc. Natl. Acad. Sci. USA
2053:American Journal of Botany
1612:Proc. Natl. Acad. Sci. USA
483:microtubule polymerization
1042:Hepler, Peter K. (2016).
389:stem induced neighboring
303:Plant and Cell Physiology
280:Woods Hole, Massachusetts
135:
96:
28:
4371:American cell biologists
4361:American microbiologists
489:and microtubules in the
427:Building on the work of
3294:Trends in Plant Science
3213:Journal of Cell Science
3042:Journal of Cell Biology
2917:Journal of Cell Science
2865:10.1073/pnas.87.22.8820
2793:Journal of Cell Biology
2744:Journal of Cell Biology
2695:Journal of Cell Biology
2632:Journal of Cell Biology
2583:Journal of Cell Biology
2534:Journal of Cell Biology
2437:Journal of Cell Science
2388:Journal of Cell Biology
1973:Journal of Cell Biology
1633:10.1073/pnas.87.22.8820
1517:Journal of Cell Science
890:UmassAmherst: MassWoods
798:Heritage Farm Companion
373:pre-fix followed by an
228:University of Wisconsin
72:University of Wisconsin
4236:"RMS Honorary Fellows"
4027:10.1105/tpc.109.069260
3698:10.1105/tpc.106.044867
3176:10.1105/tpc.105.032508
3158:Hepler, P. K. (2005).
2756:10.1083/jcb.109.6.2567
2738:Hepler, P. K. (1989).
2707:10.1083/jcb.105.5.2137
2528:Hepler, P. K. (1980).
2431:Hepler, P. K. (1976).
1575:10.1105/tpc.105.032508
1557:Hepler, Peter (2005).
789:Hepler, Billy (2012).
764:Hepler, J. R. (1922).
69:, B.S. Chemistry 1958
3964:10.1104/pp.114.242974
3819:10.3390/plants6010003
3112:10.1073/pnas.73.1.165
2990:10.1073/pnas.71.2.363
2806:10.1083/jcb.111.1.171
2787:Zhang, D. H. (1990).
1738:10.1105/tpc.9.10.1815
1208:"Members in the News"
1092:"MBL Society Members"
535:cytoplasmic streaming
487:endoplasmic reticulum
413:endoplasmic reticulum
264:Haemanthus Katharinae
238:until 1966, studying
208:Pelham, Massachusetts
2929:10.1242/jcs.102.1.79
2595:10.1083/jcb.86.2.500
2546:10.1083/jcb.86.2.490
2449:10.1242/jcs.21.2.361
2400:10.1083/jcb.38.2.437
2100:10.1093/jxb/14.3.496
1985:10.1083/jcb.19.1.239
1856:10.1104/pp.112.2.455
1693:10.1002/cm.970240302
199:Jesse Raymond Hepler
195:Dover, New Hampshire
55:Dover, New Hampshire
4366:Plant physiologists
3531:10.1104/pp.86.3.684
3433:1982Sci...217..943S
3225:10.1242/jcs.101.1.7
3103:1976PNAS...73..165K
3054:10.1083/jcb.65.1.29
2981:1974PNAS...71..363P
2856:1990PNAS...87.8820Z
2644:10.1083/jcb.87.1.23
2491:1972Sci...177.1104W
2485:(4054): 1104β1105.
2127:1962Sci...138.1404G
2121:(3548): 1404β1405.
1624:1990PNAS...87.8820Z
1474:1977Sci...196..887Z
1417:1977Natur.270..270Z
1372:10.1104/pp.58.4.492
1060:10.1104/pp.15.01506
855:"Membership Corner"
379:electron microscope
284:Brian E. S. Gunning
268:Stanford University
126:Stanford University
3484:10.1007/bf00385156
3341:10.1007/bf00392460
2353:10.1007/bf00328913
2304:10.1007/bf01273723
2261:10.1007/BF00390333
2167:American Scientist
2030:10.1007/bf01279180
1904:10.1007/bf01285037
1529:10.1242/jcs.37.1.1
1325:10.1007/bf00395767
1282:10.1007/bf00395962
1214:on October 9, 2016
1155:10.1007/bf01287411
949:10.1007/bf01279181
915:Kestrel Land Trust
557:Pollen tube growth
514:Hepler identified
248:Harvard University
240:malarial parasites
156:Peter Klock Hepler
4292:. 4 February 2016
4186:"Peter K. Hepler"
4090:10.1093/mp/sst103
3880:(11): 1999β2010.
3427:(4563): 943β945.
3388:10.1104/pp.77.1.8
2850:(22): 8820β8824.
2225:10.1111/tpj.12260
2212:The Plant Journal
1732:(10): 1815β1824.
1618:(22): 8820β8824.
1468:(4292): 887β889.
1411:(5634): 270β271.
1117:"Physiology 1981"
1006:10.1111/tpj.12176
993:The Plant Journal
578:Honors and awards
491:mitotic apparatus
455:formation of the
340:stomatal function
252:mitotic apparatus
220:Dover High School
153:
152:
98:Scientific career
16:American academic
4393:
4316:
4315:
4308:
4302:
4301:
4299:
4297:
4282:
4276:
4275:
4273:
4271:
4257:
4251:
4250:
4248:
4246:
4232:
4226:
4225:
4223:
4221:
4207:
4201:
4200:
4198:
4196:
4182:
4176:
4175:
4173:
4171:
4157:
4151:
4150:
4148:
4146:
4132:
4126:
4125:
4119:
4111:
4101:
4069:
4063:
4062:
4056:
4048:
4038:
4006:
4000:
3999:
3993:
3985:
3975:
3952:Plant Physiology
3943:
3937:
3936:
3930:
3922:
3920:
3918:
3905:
3871:
3862:
3856:
3855:
3849:
3841:
3831:
3821:
3797:
3791:
3790:
3784:
3776:
3740:
3734:
3733:
3727:
3719:
3709:
3677:
3671:
3670:
3664:
3656:
3620:
3614:
3613:
3607:
3599:
3597:
3595:
3579:10.1007/7089_043
3568:
3559:
3553:
3552:
3542:
3519:Plant Physiology
3510:
3504:
3503:
3467:
3461:
3460:
3416:
3410:
3409:
3399:
3376:Plant Physiology
3367:
3361:
3360:
3324:
3318:
3317:
3289:
3283:
3282:
3280:
3256:
3250:
3249:
3243:
3235:
3233:
3231:
3204:
3198:
3197:
3187:
3155:
3149:
3148:
3142:
3134:
3124:
3114:
3082:
3076:
3075:
3065:
3033:
3027:
3026:
3020:
3012:
3002:
2992:
2960:
2954:
2953:
2947:
2939:
2937:
2935:
2908:
2902:
2901:
2895:
2887:
2877:
2867:
2835:
2829:
2828:
2818:
2808:
2784:
2778:
2777:
2767:
2750:(6): 2567β2573.
2735:
2729:
2728:
2718:
2701:(5): 2137β2143.
2686:
2680:
2679:
2673:
2665:
2655:
2623:
2617:
2616:
2606:
2574:
2568:
2567:
2557:
2525:
2519:
2518:
2474:
2468:
2467:
2465:
2463:
2428:
2422:
2421:
2411:
2379:
2373:
2372:
2336:
2330:
2329:
2323:
2315:
2298:(2β3): 141β150.
2287:
2281:
2280:
2244:
2238:
2237:
2227:
2203:
2197:
2196:
2190:
2182:
2161:
2155:
2154:
2110:
2104:
2103:
2083:
2077:
2076:
2048:
2042:
2041:
2013:
2007:
2006:
1996:
1964:
1955:
1954:
1952:
1950:
1936:
1930:
1929:
1923:
1915:
1887:
1878:
1877:
1867:
1844:Plant Physiology
1835:
1829:
1828:
1822:
1814:
1780:
1774:
1773:
1767:
1759:
1749:
1717:
1711:
1710:
1704:
1696:
1676:
1670:
1669:
1663:
1655:
1645:
1635:
1603:
1597:
1596:
1586:
1569:(8): 2142β2155.
1554:
1548:
1547:
1545:
1543:
1508:
1502:
1501:
1457:
1451:
1450:
1444:
1436:
1425:10.1038/270270a0
1400:
1394:
1393:
1383:
1360:Plant Physiology
1351:
1345:
1344:
1308:
1302:
1301:
1265:
1259:
1258:
1241:(5β6): 498β513.
1230:
1224:
1223:
1221:
1219:
1204:
1195:
1194:
1192:
1190:
1176:
1167:
1166:
1138:
1132:
1131:
1129:
1127:
1113:
1107:
1106:
1104:
1102:
1088:
1082:
1081:
1071:
1048:Plant Physiology
1039:
1033:
1032:
1026:
1018:
1008:
984:
975:
974:
968:
960:
932:
926:
925:
923:
921:
907:
901:
900:
898:
896:
882:
876:
875:
873:
872:
866:
859:
851:
845:
844:
842:
840:
829:
823:
822:
820:
818:
808:
802:
801:
795:
786:
780:
779:
761:
755:
754:
752:
750:
743:Current Contents
740:
731:
720:
719:
699:
693:
692:
686:
678:
670:
664:
663:
661:
659:
652:Current Contents
649:
640:
527:heavy meromyosin
462:Marsilea vestita
295:Plant Physiology
181:development and
112:plant physiology
87:plant physiology
51:
48:October 29, 1936
47:
45:
33:
19:
4401:
4400:
4396:
4395:
4394:
4392:
4391:
4390:
4321:
4320:
4319:
4310:
4309:
4305:
4295:
4293:
4284:
4283:
4279:
4269:
4267:
4259:
4258:
4254:
4244:
4242:
4234:
4233:
4229:
4219:
4217:
4209:
4208:
4204:
4194:
4192:
4184:
4183:
4179:
4169:
4167:
4159:
4158:
4154:
4144:
4142:
4134:
4133:
4129:
4112:
4084:(4): 998β1017.
4078:Molecular Plant
4071:
4070:
4066:
4049:
4021:(10): 3026β40.
4008:
4007:
4003:
3986:
3945:
3944:
3940:
3923:
3916:
3914:
3886:10.2307/3870560
3869:
3864:
3863:
3859:
3842:
3799:
3798:
3794:
3777:
3742:
3741:
3737:
3720:
3679:
3678:
3674:
3657:
3622:
3621:
3617:
3600:
3593:
3591:
3589:
3571:The Pollen Tube
3566:
3561:
3560:
3556:
3512:
3511:
3507:
3469:
3468:
3464:
3418:
3417:
3413:
3369:
3368:
3364:
3326:
3325:
3321:
3291:
3290:
3286:
3278:10.1641/b571006
3271:(10): 835β844.
3258:
3257:
3253:
3236:
3229:
3227:
3206:
3205:
3201:
3157:
3156:
3152:
3135:
3084:
3083:
3079:
3035:
3034:
3030:
3013:
2962:
2961:
2957:
2940:
2933:
2931:
2910:
2909:
2905:
2888:
2837:
2836:
2832:
2786:
2785:
2781:
2737:
2736:
2732:
2688:
2687:
2683:
2666:
2625:
2624:
2620:
2576:
2575:
2571:
2527:
2526:
2522:
2476:
2475:
2471:
2461:
2459:
2430:
2429:
2425:
2381:
2380:
2376:
2338:
2337:
2333:
2316:
2289:
2288:
2284:
2246:
2245:
2241:
2205:
2204:
2200:
2183:
2163:
2162:
2158:
2112:
2111:
2107:
2085:
2084:
2080:
2065:10.2307/2437535
2050:
2049:
2045:
2015:
2014:
2010:
1966:
1965:
1958:
1948:
1946:
1938:
1937:
1933:
1916:
1889:
1888:
1881:
1837:
1836:
1832:
1815:
1803:
1782:
1781:
1777:
1760:
1719:
1718:
1714:
1697:
1678:
1677:
1673:
1656:
1605:
1604:
1600:
1556:
1555:
1551:
1541:
1539:
1510:
1509:
1505:
1459:
1458:
1454:
1437:
1402:
1401:
1397:
1353:
1352:
1348:
1310:
1309:
1305:
1267:
1266:
1262:
1232:
1231:
1227:
1217:
1215:
1206:
1205:
1198:
1188:
1186:
1178:
1177:
1170:
1140:
1139:
1135:
1125:
1123:
1115:
1114:
1110:
1100:
1098:
1090:
1089:
1085:
1041:
1040:
1036:
1019:
986:
985:
978:
961:
934:
933:
929:
919:
917:
909:
908:
904:
894:
892:
884:
883:
879:
870:
868:
864:
857:
853:
852:
848:
838:
836:
831:
830:
826:
816:
814:
810:
809:
805:
793:
788:
787:
783:
776:
763:
762:
758:
748:
746:
738:
733:
732:
723:
701:
700:
696:
679:
672:
671:
667:
657:
655:
647:
642:
641:
637:
633:
580:
559:
543:
512:
425:
417:plasma membrane
367:
327:
216:
214:University life
191:
146:
144:Peter K. Hepler
128:
70:
63:Alma mater
58:
52:
49:
43:
41:
24:
23:Peter K. Hepler
17:
12:
11:
5:
4399:
4397:
4389:
4388:
4383:
4378:
4373:
4368:
4363:
4358:
4353:
4348:
4343:
4338:
4333:
4323:
4322:
4318:
4317:
4303:
4277:
4252:
4227:
4202:
4177:
4152:
4127:
4064:
4001:
3938:
3857:
3792:
3735:
3692:(9): 2182β93.
3672:
3631:(3): 539β563.
3615:
3587:
3554:
3525:(3): 684β687.
3505:
3478:(3): 272β281.
3462:
3411:
3362:
3319:
3284:
3251:
3199:
3170:(8): 2142β55.
3150:
3097:(1): 165β167.
3077:
3028:
2975:(2): 363β366.
2955:
2903:
2830:
2799:(1): 171β182.
2779:
2730:
2681:
2618:
2589:(2): 500β513.
2569:
2540:(2): 490β499.
2520:
2469:
2443:(2): 361β390.
2423:
2394:(2): 437β446.
2374:
2331:
2282:
2239:
2218:(2): 185β188.
2198:
2173:(3): 338β352.
2156:
2105:
2094:(3): 496β503.
2078:
2059:(3): 151β156.
2043:
2008:
1979:(1): 239β250.
1956:
1931:
1898:(2): 153β165.
1879:
1850:(2): 455β461.
1830:
1801:
1775:
1726:The Plant Cell
1712:
1687:(3): 151β155.
1671:
1598:
1563:The Plant Cell
1549:
1503:
1452:
1395:
1366:(4): 492β498.
1346:
1303:
1276:(4): 473β479.
1260:
1225:
1196:
1168:
1149:(3): 121β157.
1133:
1108:
1083:
1034:
999:(2): 189β201.
976:
927:
902:
877:
846:
832:Hepler, Anna.
824:
803:
800:(Summer): 6β9.
781:
775:978-1273396984
774:
756:
721:
694:
665:
634:
632:
629:
628:
627:
623:
620:
613:
610:
603:
596:
579:
576:
558:
555:
542:
539:
519:microfilaments
511:
508:
424:
421:
409:microfilaments
371:glutaraldehyde
366:
363:
326:
323:
215:
212:
190:
187:
151:
150:
141:
137:
136:
133:
132:
123:
119:
118:
105:
101:
100:
94:
93:
80:
79:Known for
76:
75:
64:
60:
59:
53:
39:
35:
34:
26:
25:
22:
15:
13:
10:
9:
6:
4:
3:
2:
4398:
4387:
4384:
4382:
4379:
4377:
4374:
4372:
4369:
4367:
4364:
4362:
4359:
4357:
4354:
4352:
4349:
4347:
4344:
4342:
4339:
4337:
4334:
4332:
4331:Living people
4329:
4328:
4326:
4313:
4307:
4304:
4291:
4287:
4281:
4278:
4266:
4262:
4256:
4253:
4241:
4237:
4231:
4228:
4216:
4212:
4206:
4203:
4191:
4187:
4181:
4178:
4166:
4162:
4156:
4153:
4141:
4137:
4131:
4128:
4123:
4117:
4109:
4105:
4100:
4095:
4091:
4087:
4083:
4079:
4075:
4068:
4065:
4060:
4054:
4046:
4042:
4037:
4032:
4028:
4024:
4020:
4016:
4012:
4005:
4002:
3997:
3991:
3983:
3979:
3974:
3969:
3965:
3961:
3958:(1): 139β51.
3957:
3953:
3949:
3942:
3939:
3934:
3928:
3913:
3909:
3904:
3899:
3895:
3891:
3887:
3883:
3879:
3875:
3868:
3861:
3858:
3853:
3847:
3839:
3835:
3830:
3825:
3820:
3815:
3811:
3807:
3803:
3796:
3793:
3788:
3782:
3774:
3770:
3766:
3762:
3758:
3754:
3750:
3746:
3739:
3736:
3731:
3725:
3717:
3713:
3708:
3703:
3699:
3695:
3691:
3687:
3683:
3676:
3673:
3668:
3662:
3654:
3650:
3646:
3642:
3638:
3634:
3630:
3626:
3619:
3616:
3611:
3605:
3590:
3588:3-540-31121-1
3584:
3580:
3576:
3572:
3565:
3558:
3555:
3550:
3546:
3541:
3536:
3532:
3528:
3524:
3520:
3516:
3509:
3506:
3501:
3497:
3493:
3489:
3485:
3481:
3477:
3473:
3466:
3463:
3458:
3454:
3450:
3446:
3442:
3438:
3434:
3430:
3426:
3422:
3415:
3412:
3407:
3403:
3398:
3393:
3389:
3385:
3381:
3377:
3373:
3366:
3363:
3358:
3354:
3350:
3346:
3342:
3338:
3334:
3330:
3323:
3320:
3315:
3311:
3307:
3303:
3299:
3295:
3288:
3285:
3279:
3274:
3270:
3266:
3262:
3255:
3252:
3247:
3241:
3226:
3222:
3218:
3214:
3210:
3203:
3200:
3195:
3191:
3186:
3181:
3177:
3173:
3169:
3165:
3161:
3154:
3151:
3146:
3140:
3132:
3128:
3123:
3118:
3113:
3108:
3104:
3100:
3096:
3092:
3088:
3081:
3078:
3073:
3069:
3064:
3059:
3055:
3051:
3047:
3043:
3039:
3032:
3029:
3024:
3018:
3010:
3006:
3001:
2996:
2991:
2986:
2982:
2978:
2974:
2970:
2966:
2959:
2956:
2951:
2945:
2930:
2926:
2922:
2918:
2914:
2907:
2904:
2899:
2893:
2885:
2881:
2876:
2871:
2866:
2861:
2857:
2853:
2849:
2845:
2841:
2834:
2831:
2826:
2822:
2817:
2812:
2807:
2802:
2798:
2794:
2790:
2783:
2780:
2775:
2771:
2766:
2761:
2757:
2753:
2749:
2745:
2741:
2734:
2731:
2726:
2722:
2717:
2712:
2708:
2704:
2700:
2696:
2692:
2685:
2682:
2677:
2671:
2663:
2659:
2654:
2649:
2645:
2641:
2637:
2633:
2629:
2622:
2619:
2614:
2610:
2605:
2600:
2596:
2592:
2588:
2584:
2580:
2573:
2570:
2565:
2561:
2556:
2551:
2547:
2543:
2539:
2535:
2531:
2524:
2521:
2516:
2512:
2508:
2504:
2500:
2496:
2492:
2488:
2484:
2480:
2473:
2470:
2458:
2454:
2450:
2446:
2442:
2438:
2434:
2427:
2424:
2419:
2415:
2410:
2405:
2401:
2397:
2393:
2389:
2385:
2378:
2375:
2370:
2366:
2362:
2358:
2354:
2350:
2346:
2342:
2335:
2332:
2327:
2321:
2313:
2309:
2305:
2301:
2297:
2293:
2286:
2283:
2278:
2274:
2270:
2266:
2262:
2258:
2254:
2250:
2243:
2240:
2235:
2231:
2226:
2221:
2217:
2213:
2209:
2202:
2199:
2194:
2188:
2180:
2176:
2172:
2168:
2160:
2157:
2152:
2148:
2144:
2140:
2136:
2132:
2128:
2124:
2120:
2116:
2109:
2106:
2101:
2097:
2093:
2089:
2082:
2079:
2074:
2070:
2066:
2062:
2058:
2054:
2047:
2044:
2039:
2035:
2031:
2027:
2023:
2019:
2012:
2009:
2004:
2000:
1995:
1990:
1986:
1982:
1978:
1974:
1970:
1963:
1961:
1957:
1945:
1941:
1935:
1932:
1927:
1921:
1913:
1909:
1905:
1901:
1897:
1893:
1886:
1884:
1880:
1875:
1871:
1866:
1861:
1857:
1853:
1849:
1845:
1841:
1834:
1831:
1826:
1820:
1812:
1808:
1804:
1802:9780125441636
1798:
1794:
1790:
1786:
1779:
1776:
1771:
1765:
1757:
1753:
1748:
1743:
1739:
1735:
1731:
1727:
1723:
1716:
1713:
1708:
1702:
1694:
1690:
1686:
1682:
1675:
1672:
1667:
1661:
1653:
1649:
1644:
1639:
1634:
1629:
1625:
1621:
1617:
1613:
1609:
1602:
1599:
1594:
1590:
1585:
1580:
1576:
1572:
1568:
1564:
1560:
1553:
1550:
1538:
1534:
1530:
1526:
1522:
1518:
1514:
1507:
1504:
1499:
1495:
1491:
1487:
1483:
1479:
1475:
1471:
1467:
1463:
1456:
1453:
1448:
1442:
1434:
1430:
1426:
1422:
1418:
1414:
1410:
1406:
1399:
1396:
1391:
1387:
1382:
1377:
1373:
1369:
1365:
1361:
1357:
1350:
1347:
1342:
1338:
1334:
1330:
1326:
1322:
1318:
1314:
1307:
1304:
1299:
1295:
1291:
1287:
1283:
1279:
1275:
1271:
1264:
1261:
1256:
1252:
1248:
1244:
1240:
1236:
1229:
1226:
1213:
1209:
1203:
1201:
1197:
1185:
1181:
1175:
1173:
1169:
1164:
1160:
1156:
1152:
1148:
1144:
1137:
1134:
1122:
1118:
1112:
1109:
1097:
1093:
1087:
1084:
1079:
1075:
1070:
1065:
1061:
1057:
1053:
1049:
1045:
1038:
1035:
1030:
1024:
1016:
1012:
1007:
1002:
998:
994:
990:
983:
981:
977:
972:
966:
958:
954:
950:
946:
943:(1β4): 4β11.
942:
938:
931:
928:
916:
912:
906:
903:
891:
887:
881:
878:
867:on 2016-04-04
863:
856:
850:
847:
835:
828:
825:
813:
807:
804:
799:
792:
785:
782:
777:
771:
767:
760:
757:
744:
737:
730:
728:
726:
722:
717:
713:
709:
705:
698:
695:
690:
684:
676:
669:
666:
653:
646:
639:
636:
630:
624:
621:
618:
614:
611:
608:
604:
601:
597:
594:
590:
589:morphogenesis
586:
582:
581:
577:
575:
572:
566:
564:
556:
554:
552:
548:
540:
538:
536:
532:
528:
524:
520:
517:
509:
507:
505:
501:
496:
492:
488:
484:
478:
476:
472:
468:
464:
463:
458:
457:blepharoplast
454:
450:
447:known as the
446:
440:
438:
434:
430:
422:
420:
418:
414:
410:
407:
402:
397:
392:
388:
384:
380:
376:
372:
364:
362:
360:
355:
351:
349:
345:
341:
337:
336:plasmodesmata
333:
324:
322:
320:
319:
314:
313:
308:
304:
300:
296:
292:
287:
285:
281:
277:
273:
269:
265:
261:
257:
253:
249:
245:
241:
237:
233:
229:
225:
221:
213:
211:
209:
205:
200:
196:
189:Personal life
188:
186:
184:
183:cell motility
180:
176:
172:
168:
164:
160:
157:
149:
145:
142:
138:
134:
131:
127:
124:
120:
117:
113:
109:
106:
102:
99:
95:
92:
88:
84:
81:
77:
73:
68:
65:
61:
56:
50:(age 87)
40:
36:
32:
27:
20:
4306:
4294:. Retrieved
4290:UmassAmherst
4289:
4280:
4268:. Retrieved
4264:
4255:
4243:. Retrieved
4239:
4230:
4218:. Retrieved
4214:
4205:
4193:. Retrieved
4189:
4180:
4168:. Retrieved
4164:
4155:
4143:. Retrieved
4139:
4130:
4116:cite journal
4081:
4077:
4067:
4053:cite journal
4018:
4014:
4004:
3990:cite journal
3955:
3951:
3941:
3927:cite journal
3915:. Retrieved
3877:
3873:
3860:
3846:cite journal
3809:
3805:
3795:
3781:cite journal
3751:(1): 86β94.
3748:
3744:
3738:
3724:cite journal
3689:
3685:
3675:
3661:cite journal
3628:
3624:
3618:
3592:. Retrieved
3570:
3557:
3522:
3518:
3508:
3475:
3471:
3465:
3424:
3420:
3414:
3379:
3375:
3365:
3335:(1): 12β20.
3332:
3328:
3322:
3300:(1): 32β38.
3297:
3293:
3287:
3268:
3264:
3254:
3240:cite journal
3228:. Retrieved
3216:
3212:
3202:
3167:
3163:
3153:
3139:cite journal
3094:
3090:
3080:
3048:(1): 29β38.
3045:
3041:
3031:
3017:cite journal
2972:
2968:
2958:
2944:cite journal
2932:. Retrieved
2923:(1): 79β89.
2920:
2916:
2906:
2892:cite journal
2847:
2843:
2833:
2796:
2792:
2782:
2747:
2743:
2733:
2698:
2694:
2684:
2670:cite journal
2638:(1): 23β32.
2635:
2631:
2621:
2586:
2582:
2572:
2537:
2533:
2523:
2482:
2478:
2472:
2460:. Retrieved
2440:
2436:
2426:
2391:
2387:
2377:
2344:
2340:
2334:
2320:cite journal
2295:
2291:
2285:
2255:(1): 71β93.
2252:
2248:
2242:
2215:
2211:
2201:
2187:cite journal
2170:
2166:
2159:
2118:
2114:
2108:
2091:
2087:
2081:
2056:
2052:
2046:
2024:(1β4): 1β3.
2021:
2017:
2011:
1976:
1972:
1947:. Retrieved
1943:
1934:
1920:cite journal
1895:
1891:
1847:
1843:
1833:
1784:
1778:
1764:cite journal
1729:
1725:
1715:
1701:cite journal
1684:
1680:
1674:
1660:cite journal
1615:
1611:
1601:
1566:
1562:
1552:
1540:. Retrieved
1520:
1516:
1506:
1465:
1461:
1455:
1441:cite journal
1408:
1404:
1398:
1363:
1359:
1349:
1319:(1): 24β31.
1316:
1312:
1306:
1273:
1269:
1263:
1238:
1234:
1228:
1216:. Retrieved
1212:the original
1187:. Retrieved
1183:
1146:
1142:
1136:
1124:. Retrieved
1120:
1111:
1099:. Retrieved
1095:
1086:
1051:
1047:
1037:
1023:cite journal
996:
992:
965:cite journal
940:
936:
930:
918:. Retrieved
914:
905:
893:. Retrieved
889:
880:
869:. Retrieved
862:the original
849:
837:. Retrieved
827:
815:. Retrieved
806:
797:
784:
765:
759:
747:. Retrieved
742:
707:
703:
697:
674:
668:
656:. Retrieved
651:
638:
570:
567:
563:pollen tubes
560:
544:
522:
513:
479:
467:basal bodies
460:
452:
441:
437:phragmoplast
429:Shinya InouΓ©
426:
386:
368:
359:microtubules
356:
352:
332:cytoskeleton
328:
316:
310:
306:
302:
298:
294:
290:
288:
263:
256:phragmoplast
244:Keith Porter
232:microtubules
217:
192:
175:cytoskeleton
155:
154:
122:Institutions
108:Cell biology
97:
83:Cell biology
4341:1936 births
3382:(1): 8β11.
2292:Protoplasma
2018:Protoplasma
1892:Protoplasma
1143:Protoplasma
1054:(1): 3β22.
937:Protoplasma
817:October 18,
710:: 309β362.
547:phytochrome
504:chromosomes
433:kinetochore
401:guard cells
344:Woody Allen
291:Protoplasma
4325:Categories
4296:October 6,
4270:October 6,
4245:October 6,
4220:October 6,
4195:October 8,
4170:October 6,
4145:October 8,
4015:Plant Cell
3874:Plant Cell
3686:Plant Cell
3625:New Phytol
3265:BioScience
3230:October 7,
3164:Plant Cell
2934:October 6,
2462:October 6,
2341:Chromosoma
1949:October 6,
1542:October 6,
1218:October 6,
1189:October 6,
1126:October 6,
1101:October 6,
920:October 6,
895:October 6,
871:2016-10-07
839:October 7,
749:October 7,
658:October 6,
631:References
531:actomyosin
449:centrosome
391:parenchyma
348:Yogi Berra
179:plant cell
116:microscopy
91:microscopy
44:1936-10-29
3917:August 8,
3745:BioEssays
3604:cite book
3594:August 8,
2347:: 48β63.
1819:cite book
683:cite book
551:cytokinin
495:membranes
471:telophase
318:BioEssays
262:cells of
260:endosperm
171:membranes
4108:23770837
4045:19861555
3982:25037212
3912:12237353
3838:28042810
3812:(4): 3.
3773:17904147
3765:11135313
3716:16920777
3653:86549036
3645:33873604
3549:16665970
3492:24302427
3457:24442631
3449:17747957
3406:16664033
3357:14789256
3349:24258366
3314:22104406
3219:: 7β12.
3194:16061961
2884:11607116
2515:34875893
2361:13717778
2269:24424910
2234:23834223
2179:27829621
2151:39081841
2143:17753861
2038:12850336
2003:19866635
1912:19236616
1874:12226402
1756:12237348
1652:11607116
1593:16061961
1523:: 1β10.
1498:13433483
1490:17821809
1390:16659703
1341:21975131
1333:24201418
1298:30377452
1290:24248219
1078:26722019
1015:23496242
957:32568416
745:(32): 20
553:action.
475:prophase
415:and the
325:Research
254:and the
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