82:(potential kernels) form per ear of corn, each of which produces a strand of corn silk from its tip that eventually emerges from the end of the ear. The emergence of at least one strand of silk from a given ear of corn is defined as growth stage R1, and the emergence of silk in 50% of the plants in a corn field is called "mid-silk". The silk lengthens from the basal ovules during the 10 to 14 days previous to growth stage R1; this is due to a change of shape of existing cells rather than their replication. The elongation progresses at 1.5 inches per day at first but gradually slows as the full length is approached. Elongation of a corn silk strand stops soon after a grain of pollen is captured or due to
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If an ovule is successfully fertilized, the corn silk will detach from it two or three days later. Otherwise, the silk will remain attached indefinitely, and fertilization remains possible (with decreasing chances of success) for 10 days after silk emergence. For this reason, it is possible to sample
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type, will greatly slow the development of pollen tubes from any pollen that does not carry a similar form of Ga1-S or Ga1-M, thereby preventing the ingression of genes (natural or engineered) from other types of corn. The popcorn remains free to donate its genes via its own pollen to other types of
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that extends down nearly the full length of the corn silk strand. Typically 400 to 600 kernels are successfully formed in this way. The pollen tube extends at a rate of over 1 centimeter per hour, requiring only 24 hours to create a foot-long pathway within the intercellular space of the corn silk
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In many studies, corn silk has been claimed to have antioxidant and healthcare properties, as well as acting as a diuretic agent that reduces hyperglycemia and works as an antidepressant and anti-fatigue agent. Corn silk is also used in teas and supplements for treating urinary problems. The
106:, providing a female flower surface to which pollen grains can adhere and defining the path through which the pollen must travel. The stigma is the very tip of the corn silk, which has a larger number of hairs to help pollen to adhere to it. Kernel formation in the cob requires
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Ong, J.-H.; Koh, J.-A.; Cao, H.; Tan, S.-A.; Abd Manan, F.; Wong, F.-C.; Chai, T.-T. Purification, Identification and
Characterization of Antioxidant Peptides from Corn Silk Tryptic Hydrolysate: An Integrated In Vitro-In Silico Approach. Antioxidants 2021, 10, 1822,
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Chai, T.-T.; Ang, S.-Y.; Goh, K.; Lee, Y.-H.; Ngoo, J.-M.; Teh, L.-K.; Wong, F.-C. Trypsin-hydrolyzed corn silk proteins: Antioxidant activities, in vitro gastrointestinal and thermal stability, and hematoprotective effects. eFood 2020, 1, 156-164,
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in the pollen grain, which passes its cytoplasm, nucleus and two sperm cells into the tube. The tube extends itself at the apex only, in an actin polymerization dependent process, and the direction in which the apex progresses responds to
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developing ears of corn from a field, husking them gently with a sharp knife, then shaking them to assess the progress of pollination based on how much of the corn silk falls away.
442:"Culture: For Mexicans, Growing Corn is a National Heritage: Seven thousand years of evolution have yielded an astonishing variety. For this nation, maize has deep symbolic values"
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corn, which under U.S. regulations can cause their product to be rejected as organic corn, and for which they have no recourse against GMO growers.
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Corn silk contains a variety of pharmacologically-active compounds and as such is used in many types of folk medicine, including as a
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are pursuing the transfer of some of these mechanisms into non-popcorn strains for purposes of preventing inadvertent pollination by
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of the external corn silk by wind or insects. Usually several grains of pollen adhere, but only one will successfully participate in
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Choi, Sang Yoon; Lee, Yeonmi; Kim, Sung Soo; Ju, Hyun Min; Baek, Ji Hwoon; Park, Chul-Soo; Lee, Dong-Hyuk (2014-03-03).
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Corn silk can control the types of pollen that an ear of corn will accept through expression of certain forms of the
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of silky fibers that protrude from the tip of the ear of corn. The ear is enclosed in modified leaves called
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corn. The effectiveness of this restriction can be measured by planting the popcorn beside purple
130:) pass to join the female gametophyte within the ovule. The pollen tube is produced by the single
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533:"Corn Silk (Stigma Maydis) in Healthcare: A Phytochemical and Pharmacological Review"
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if kernels permitted themselves to be fertilized by pollen from outside the group.
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searches for pollen on corn silk. This insect can be a cause of silk clipping.
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121:, to transmit its genetic material to the ovule, it must germinate and form a
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279:. Purdue University Department of Agronomy (Corny News Network). 2016-08-16.
199:, which can cause silk clipping, which can interfere with kernel formation.
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levels, including cAMP cyclization by a pollen signalling protein (PSiP).
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Hasanudin, Khairunnisa; Hashim, Puziah; Mustafa, Shuhaimi (August 2012).
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Alexander
Krichevsky; et al. (2007). "How pollen tubes grow".
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413:"Plant breeder works to save organic corn from GMO contamination"
297:. Purdue University Department of Agriculture Corny News Network.
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70:. The term probably originated sometime between 1850 and 1855.
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have been experimentally demonstrated. Potential antioxidant
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antioxidant and hematoprotective effect of corn silk protein
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The moisture of freshly emerged corn silk sometimes attracts
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Beautiful Corn: America's
Original Grain from Seed to Plate
475:"Inhibitory Effect of Corn Silk on Skin Pigmentation"
295:"A Fast & Accurate "Pregnancy" Test for Corn"
227:in the hydrolysate have also been identified.
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584:https://doi.org/10.2991/efood.k.200323.001
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86:of the silk 10 days after its emergence.
16:Shiny fibres at the tip of an ear of corn
277:"Silk development and emergence in corn"
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62:. Each individual fiber is an elongated
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598:https://doi.org/10.3390/antiox10111822
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163:would cause the formation of purple
114:of the ovule to form a corn kernel.
427:"What is the Purpose of Corn Silk?"
126:through which the sperm cells (the
31:Corn silk on a growing ear of corn
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429:. The Farmer's Life. 2016-08-25.
411:Ken Roseboro (August 28, 2014).
293:R.L. (Bob) Nielsen (July 2016).
440:DARLING, JUANITA (1992-02-18).
117:For the pollen grain, the male
42:, the shiny, thread-like, weak
384:Anthony Boutard (2012-09-25).
1:
260:"The definition of corn silk"
66:, attached to an individual
363:10.1016/j.ydbio.2006.12.003
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390:. New Society Publishers.
23:Corn silk on a corn flower
550:10.3390/molecules17089697
492:10.3390/molecules19032808
211:and as an inhibitor of
336:"Corn (maize) flowers"
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187:In its adult stage, a
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351:Developmental Biology
189:Western corn rootworm
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54:(maize); the tuft or
46:that grow as part of
38:is a common name for
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146:gene. Many races of
144:Gametophyte Factor 1
311:Teaching of Biology
338:. Backyard nature.
314:. APH Publishing.
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98:Corn silk is part
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446:Los Angeles Times
415:. Non GMO report.
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457:. Retrieved
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215:production.
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203:Applications
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161:xenia effect
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221:hydrolysate
123:pollen tube
119:gametophyte
108:pollination
78:Up to 1000
74:Development
459:2016-03-01
243:References
137:cyclic AMP
84:senescence
537:Molecules
479:Molecules
454:0458-3035
179:Pathology
165:aleurones
157:dent corn
150:, of the
102:and part
36:Corn silk
611:Category
569:22890173
511:24595276
371:17214979
231:See also
225:peptides
209:diuretic
94:Function
560:6268265
502:6270964
213:melanin
197:insects
148:popcorn
128:gametes
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557:
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159:; the
152:everta
100:stigma
80:ovules
56:tassel
44:fibers
617:Maize
104:style
68:ovary
64:style
60:husks
596:doi:
582:doi:
565:PMID
507:PMID
450:ISSN
392:ISBN
367:PMID
316:ISBN
52:corn
48:ears
555:PMC
545:doi
497:PMC
487:doi
359:doi
355:303
173:GMO
50:of
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
