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Bacterial capsule

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A bacterial capsule has a semi-rigid border that follows the contour of the cell. The capsule excludes India Ink when dyed. A slime layer is a non-rigid matrix that is easily deformed and is not able to exclude India Ink. Biofilms are composed of many cells and their outer barriers. The primary
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Serological methods: Capsular material is antigenic and can be demonstrated by mixing it with a specific anticapsular serum. When examined under the microscope, the capsule appears 'swollen' due to an increase in its refractivity. This phenomenon is the basis of
139:. Because most capsules are so tightly packed, they are difficult to stain because most standard stains cannot penetrate the capsule. To visualize encapsulated bacteria using a microscope, a sample is treated with a dark stain, such as 89:
and is found only in gram-negative bacteria. When the amorphous viscid secretion (that makes up the capsule) diffuses into the surrounding medium and remains as a loose undemarcated secretion, it is known as a
155:. Capsules allow adhesion to surfaces and help enable the bacteria to evade the host immune system. The water content in the capsule gives the protection against drying out. The capsule is considered a 606: 515:
Gao S, Lewis GD, Ashokkumar M, Hemar Y (January 2014). "Inactivation of microorganisms by low-frequency high-power ultrasound: 1. Effect of growth phase and capsule properties of the bacteria".
1414:"Genotyping and phenotyping of Lactococcus garvieae isolates from fish by pulse-field gel electrophoresis (PFGE) and electron microscopy indicate geographical and capsular variations" 179:. Immunity to one capsule type does not result in immunity to the other types. Capsules also help cells adhere to surfaces. As a group where the capsule is present they are known as 361:
Maneval's capsule stain: the capsule appears as a clear halo between the pink-stained bacterium and the bluish-grey stained background. The background stain is the acidic stain
143:. The structure of the capsule prevents the stain from penetrating the cell. When viewed, bacterial capsules appear as a bright halo around the cell on a dark background. 66:, and is thus deemed part of the outer envelope of a bacterial cell. It is a well-organized layer, not easily washed off, and it can be the cause of various diseases. 1041:"Two variants among Haemophilus influenzae serotype b strains with distinct bcs4, hcsA and hcsB genes display differences in expression of the polysaccharide capsule" 624: 775: 1607: 163:). The capsule can protect cells from engulfment by eukaryotic cells, such as macrophages. A capsule-specific antibody may be required for 611: 2096: 1836: 1625:"Capsule gene analysis of invasive Haemophilus influenzae: accuracy of serotyping and prevalence of IS1016 among nontypeable isolates" 902:"Role of bacterial capsule in local and systemic inflammatory responses of mice during pulmonary infection with Klebsiella pneumoniae" 2429: 464: 407:). However, polysaccharides are not highly antigenic, especially in children, so many capsular vaccines contain polysaccharides 2086: 2013: 294:
produces a polysaccharide capsule of nine antigenic types that all contain sialic acid (Ia, Ib, II, III, IV, V, VI, VII, VIII).
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Rao, Shreesha; Chen, Mei-Yun; Sudpraseart, Chiranan; Lin, Peiry; Yoshida, Terutoyo; Wang, Pei-Chi; Chen, Shih-Chu (2022).
1092:"The algR gene, which regulates mucoidy in Pseudomonas aeruginosa, belongs to a class of environmentally responsive genes" 1365:"The Streptococcus pneumoniae capsule inhibits complement activity and neutrophil phagocytosis by multiple mechanisms" 2051: 298: 337: 34:
The outer red layer in this diagram is the capsule, which is distinct from the cell envelope. This bacterium is
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Daffé M, Etienne G (1999). "The capsule of Mycobacterium tuberculosis and its implications for pathogenicity".
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Rudolph K (1996). "Chapter 3: Pseudomonas synringae pathovars". In Singh RP, Kohmoto K, Singh US (eds.).
2424: 2321: 1963: 1141:"Salmonella produces an O-antigen capsule regulated by AgfD and important for environmental persistence" 305: 211: 101: 779: 560:"Streptococcus pneumoniae capsule determines disease severity in experimental pneumococcal meningitis" 2403: 2161: 2036: 2019: 1857: 1201: 1039:
Schouls L, van der Heide H, Witteveen S, Zomer B, van der Ende A, Burger M, Schot C (February 2008).
741: 312: 283: 2286: 2171: 2166: 2059: 2029: 1882: 1867: 251: 358:: the capsule appears as a clear halo around the bacterium as the ink can't penetrate the capsule. 2316: 2215: 2024: 1936: 1929: 1441: 800:
Ganesh K, Allam M, Wolter N, Bratcher HB, Harrison OB, Lucidarme J, et al. (February 2017).
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Harrison OB, Claus H, Jiang Y, Bennett JS, Bratcher HB, Jolley KA, et al. (April 2013).
2108: 1984: 1919: 1791: 1783: 1742: 1734: 1693: 1685: 1644: 1636: 1570: 1562: 1521: 1480: 1472: 1425: 1384: 1376: 1335: 1327: 1286: 1268: 1227: 1209: 1190:"Variation in the Complex Carbohydrate Biosynthesis Loci of Acinetobacter baumannii Genomes" 1160: 1152: 1111: 1103: 1062: 1052: 1011: 1003: 962: 954: 913: 872: 864: 823: 813: 802:"Molecular characterization of invasive capsule null Neisseria meningitidis in South Africa" 749: 706: 669: 659: 579: 571: 524: 196: 156: 2334: 2233: 2118: 1994: 1924: 1877: 1549:
Casadevall A, Coelho C, Cordero RJ, Dragotakes Q, Jung E, Vij R, Wear MP (December 2019).
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Gibson DL, White AP, Snyder SD, Martin S, Heiss C, Azadi P, et al. (November 2006).
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Yoshida K, Matsumoto T, Tateda K, Uchida K, Tsujimoto S, Yamaguchi K (November 2000).
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has at least 91 different capsular serotypes. These serotypes are the basis for the
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The bacterial capsule serves as a shield, giving protection from toxins, and from
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Kenyon, Johanna J.; Hall, Ruth M. (2013-04-16). de Crécy-Lagard, Valerie (ed.).
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for example, synthesizes a capsule composed of polypeptide and polysaccharides.
2368: 2353: 2271: 2004: 1257:"Diversity and Function of Capsular Polysaccharide in Acinetobacter baumannii" 818: 454: 232: 176: 95: 30: 1282: 1273: 1223: 2363: 2194: 2152: 2064: 1958: 362: 159:
because it enhances the ability of bacteria to cause disease (e.g. prevents
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functions of both capsules and slime layers are for protection and adhesion.
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Deretic V, Dikshit R, Konyecsni WM, Chakrabarty AM, Misra TK (March 1989).
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Dorman MJ, Feltwell T, Goulding DA, Parkhill J, Short FL (November 2018).
365:(which changes color to bluish-grey due to the pH), and the pink stain is 1872: 1849: 1814: 1689: 1640: 1476: 1380: 1331: 1316:"Capsule Prolongs Survival of Streptococcus pneumoniae during Starvation" 558:
Hathaway LJ, Grandgirard D, Valente LG, TĂ€uber MG, Leib SL (March 2016).
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Polysaccharide layer that lies outside the cell envelope in many bacteria
1602:. Vol. 1: Prokaryotes (1st ed.). Amsterdam: Elsevier Science. 1156: 575: 2302: 2266: 1902: 336:
Capsules too small to be seen with an ordinary microscope, such as the
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Singh, Jennifer K.; Adams, Felise G.; Brown, Melissa H. (2019-01-09).
853:"Description and nomenclature of Neisseria meningitidis capsule locus" 2348: 2103: 732:
Lindberg AA (November 1999). "Polyosides (encapsulated bacteria)".
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using capsular material is effective against some organisms (e.g.,
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Hyams C, Camberlein E, Cohen JM, Bax K, Brown JS (February 2010).
325: 100: 94:. Capsule and slime layer are sometimes summarized under the term 29: 191:
The capsule is found most commonly among gram-negative bacteria:
1818: 1510:"Molecular architecture of the Cryptococcus neoformans capsule" 646:
Santos-López A, Rodríguez-Beltrån J, San Millån Á (July 2021).
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synthesizes capsular gene clusters and some time synthesizes a
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However, some gram-positive bacteria may also have a capsule:
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Satola SW, Collins JT, Napier R, Farley MM (October 2007).
1461:"The Cryptococcus neoformans capsule: a sword and a shield" 992:"Capsule and fimbria interaction in Klebsiella pneumoniae" 1314:
Hamaguchi S, Zafar MA, Cammer M, Weiser JN (March 2018).
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Schembri MA, Blom J, Krogfelt KA, Klemm P (August 2005).
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Polysaccharide § Bacterial capsular polysaccharides
648:"The bacterial capsule is a gatekeeper for mobile DNA" 419:. This stimulates a much more robust immune response. 1600:
Pathogenesis & Host Specificity in Plant Diseases
125:, but some species use other materials, such as poly- 943:"Klebsiella pneumoniae Defined by density-TraDISort" 734:
Comptes Rendus de l'Académie des Sciences, Série III
2315: 2295: 2247: 2136: 2127: 2079: 1972: 1910: 1896: 1856: 459:. University of Texas Medical Branch at Galveston. 1721:Tzeng YL, Thomas J, Stephens DS (September 2016). 436:, a method to visualize capsule under a microscope 1723:"Regulation of capsule in Neisseria meningitidis" 333:, though not a bacterium, has a similar capsule. 1508:Gates MA, Thorkildson P, Kozel TR (April 2004). 77:—is different from the second lipid membrane – 1830: 8: 778:. Textbookofbacteriology.net. Archived from 2133: 1907: 1837: 1823: 1815: 38:, as its cell envelope comprises a single 1795: 1746: 1697: 1648: 1574: 1525: 1484: 1388: 1339: 1290: 1272: 1231: 1213: 1164: 1115: 1066: 1056: 1015: 966: 917: 876: 827: 817: 673: 663: 583: 121:Most bacterial capsules are composed of 445: 167:to occur. They also exclude bacterial 69:The capsule—which can be found in both 497: 487: 1459:O'Meara TR, Alspaugh JA (July 2012). 625:"Basteria: Capsules and Slime Layers" 7: 2399: 1776:Clinical and Experimental Immunology 181:polysaccharide encapsulated bacteria 54:is a large structure common to many 411:with protein carriers, such as the 25: 2398: 2389: 2388: 1788:10.1046/j.1365-2249.2000.01109.x 1727:Critical Reviews in Microbiology 1678:Journal of Clinical Microbiology 1629:Journal of Clinical Microbiology 1527:10.1111/j.1365-2958.2003.03957.x 2087:Bacterial cellular morphologies 1672:Watts SC, Holt KE (June 2019). 1108:10.1128/jb.171.3.1278-1283.1989 1008:10.1128/IAI.73.8.4626-4633.2005 906:Journal of Medical Microbiology 46:-containing cell wall (purple). 529:10.1016/j.ultsonch.2013.06.006 1: 1739:10.3109/1040841X.2015.1022507 1567:10.1080/21505594.2018.1431087 1465:Clinical Microbiology Reviews 754:10.1016/s0764-4469(00)87188-7 1770:Goldblatt D (January 2000). 1215:10.1371/journal.pone.0062160 919:10.1099/0022-1317-49-11-1003 857:Emerging Infectious Diseases 665:10.1371/journal.pbio.3001308 612:Dorland's Medical Dictionary 346:, are called microcapsules. 62:layer that lies outside the 2446: 2330:Bacteria (classifications) 2052:Primary nutritional groups 776:"Meningococcal meningitis" 299:Staphylococcus epidermidis 183:or encapsulated bacteria. 114: 2384: 1551:"Cryptococcus neoformans" 1261:Frontiers in Microbiology 819:10.1186/s12866-017-0942-5 699:Tubercle and Lung Disease 517:Ultrasonics Sonochemistry 2430:Prokaryotic cell anatomy 2206:Bacterial outer membrane 1418:Journal of Fish Diseases 1274:10.3389/fmicb.2018.03301 429:Bacterial cell structure 350:Demonstration of capsule 291:Streptococcus agalactiae 279:Streptococcus pneumoniae 175:toxic materials such as 79:bacterial outer membrane 1145:Journal of Bacteriology 1096:Journal of Bacteriology 629:EncyclopĂŠdia Britannica 330:Cryptococcus neoformans 240:Acinetobacter baumannii 2201:Gram-negative bacteria 2180:Gram-positive bacteria 1514:Molecular Microbiology 1369:Infection and Immunity 1320:Infection and Immunity 1058:10.1186/1471-2180-8-35 996:Infection and Immunity 869:10.3201/eid1904.111799 711:10.1054/tuld.1998.0200 456:Bacterial Pathogenesis 343:Streptococcus pyogenes 267:Streptococcus pyogenes 226:Pseudomonas aeruginosa 219:Haemophilus influenzae 205:Neisseria meningitidis 107: 75:gram-positive bacteria 47: 2056:Substrate preference 959:10.1128/mBio.01863-18 306:Staphylococcus aureus 284:pneumococcal vaccines 212:Klebsiella pneumoniae 115:Further information: 104: 42:(orange) and a thick 33: 18:Encapsulated bacteria 2037:Microbial metabolism 1772:"Conjugate vaccines" 1690:10.1128/JCM.00190-19 1641:10.1128/JCM.00794-07 1477:10.1128/CMR.00001-12 1381:10.1128/IAI.00881-09 1332:10.1128/IAI.00802-17 453:Peterson JW (1996). 313:Lactococcus garvieae 2287:Non-motile bacteria 1883:Pathogenic bacteria 1206:2013PLoSO...862160K 1157:10.1128/JB.00809-06 746:1999CRASG.322..925L 607:"bacterial capsule" 576:10.1098/rsob.150269 252:Bacillus megaterium 83:lipopolysaccharides 2216:Lipopolysaccharide 382:Use in vaccination 356:India ink staining 260:Bacillus anthracis 136:Bacillus anthracis 108: 48: 2412: 2411: 2311: 2310: 2257:Bacterial capsule 2223:Periplasmic space 2190:Lipoteichoic acid 2075: 2074: 2047:Microbial ecology 2042:Nitrogen fixation 1609:978-0-08-098473-5 1430:10.1111/jfd.13601 434:Quellung reaction 417:diphtheria toxoid 375:quellung reaction 200:(in some strains) 128: 81:, which contains 52:bacterial capsule 16:(Redirected from 2437: 2402: 2401: 2392: 2391: 2340:Former groupings 2134: 1985:Human microbiome 1908: 1839: 1832: 1825: 1816: 1810: 1809: 1799: 1767: 1761: 1760: 1750: 1718: 1712: 1711: 1701: 1669: 1663: 1662: 1652: 1620: 1614: 1613: 1595: 1589: 1588: 1578: 1546: 1540: 1539: 1529: 1505: 1499: 1498: 1488: 1456: 1450: 1449: 1409: 1403: 1402: 1392: 1360: 1354: 1353: 1343: 1311: 1305: 1304: 1294: 1276: 1252: 1246: 1245: 1235: 1217: 1185: 1179: 1178: 1168: 1136: 1130: 1129: 1119: 1087: 1081: 1080: 1070: 1060: 1045:BMC Microbiology 1036: 1030: 1029: 1019: 987: 981: 980: 970: 938: 932: 931: 921: 897: 891: 890: 880: 848: 842: 841: 831: 821: 806:BMC Microbiology 797: 791: 790: 788: 787: 772: 766: 765: 729: 723: 722: 694: 688: 687: 677: 667: 643: 637: 636: 631:. Archived from 621: 615: 604: 598: 597: 587: 555: 549: 548: 512: 506: 505: 499: 495: 493: 485: 483: 481: 450: 197:Escherichia coli 157:virulence factor 126: 21: 2445: 2444: 2440: 2439: 2438: 2436: 2435: 2434: 2415: 2414: 2413: 2408: 2380: 2335:Bacterial phyla 2319: 2307: 2291: 2249: 2243: 2234:Arabinogalactan 2139: 2123: 2071: 1968: 1912: 1900: 1892: 1878:Lysogenic cycle 1859: 1852: 1843: 1813: 1769: 1768: 1764: 1720: 1719: 1715: 1671: 1670: 1666: 1622: 1621: 1617: 1610: 1597: 1596: 1592: 1548: 1547: 1543: 1507: 1506: 1502: 1458: 1457: 1453: 1411: 1410: 1406: 1362: 1361: 1357: 1313: 1312: 1308: 1254: 1253: 1249: 1187: 1186: 1182: 1151:(22): 7722–30. 1138: 1137: 1133: 1089: 1088: 1084: 1038: 1037: 1033: 989: 988: 984: 940: 939: 935: 912:(11): 1003–10. 899: 898: 894: 850: 849: 845: 799: 798: 794: 785: 783: 774: 773: 769: 731: 730: 726: 696: 695: 691: 658:(7): e3001308. 645: 644: 640: 623: 622: 618: 605: 601: 557: 556: 552: 514: 513: 509: 496: 486: 479: 477: 467: 452: 451: 447: 443: 425: 404:N. meningitidis 384: 352: 318:hyaluronic acid 272:hyaluronic acid 189: 149: 119: 113: 28: 23: 22: 15: 12: 11: 5: 2443: 2441: 2433: 2432: 2427: 2417: 2416: 2410: 2409: 2407: 2406: 2396: 2385: 2382: 2381: 2379: 2378: 2377: 2376: 2371: 2366: 2361: 2351: 2346: 2337: 2332: 2326: 2324: 2313: 2312: 2309: 2308: 2306: 2305: 2299: 2297: 2293: 2292: 2290: 2289: 2284: 2279: 2274: 2269: 2264: 2259: 2253: 2251: 2245: 2244: 2242: 2241: 2236: 2225: 2220: 2219: 2218: 2213: 2197: 2192: 2187: 2176: 2175: 2174: 2169: 2164: 2150: 2144: 2142: 2131: 2125: 2124: 2122: 2121: 2116: 2111: 2106: 2101: 2100: 2099: 2094: 2092:cell structure 2083: 2081: 2077: 2076: 2073: 2072: 2070: 2069: 2068: 2067: 2065:Saccharophilic 2062: 2054: 2049: 2044: 2039: 2034: 2033: 2032: 2027: 2022: 2017: 2007: 2002: 1997: 1992: 1982: 1976: 1974: 1970: 1969: 1967: 1966: 1961: 1956: 1954:Microaerophile 1951: 1950: 1949: 1944: 1934: 1933: 1932: 1927: 1916: 1914: 1905: 1894: 1893: 1891: 1890: 1885: 1880: 1875: 1870: 1864: 1862: 1854: 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1520:(1): 13–24. 1517: 1513: 1503: 1468: 1464: 1454: 1421: 1417: 1407: 1372: 1368: 1358: 1323: 1319: 1309: 1264: 1260: 1250: 1197: 1193: 1183: 1148: 1144: 1134: 1099: 1095: 1085: 1048: 1044: 1034: 999: 995: 985: 950: 946: 936: 909: 905: 895: 860: 856: 846: 809: 805: 795: 784:. 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It is a 2322:evolution 2296:Composite 2195:Endospore 2153:Cell wall 2129:Structure 2020:Placental 1959:Nanaerobe 1937:Anaerobic 1868:Infection 1555:Virulence 1446:247220475 1283:1664-302X 1224:1932-6203 1051:(1): 35. 812:(1): 40. 652:PLOS Biol 500:ignored ( 490:cite book 363:Congo red 338:M protein 187:Diversity 171:and most 141:India ink 2394:Category 2317:Taxonomy 2250:envelope 2140:envelope 2030:Salivary 1947:Obligate 1925:Obligate 1873:Exotoxin 1850:Bacteria 1806:10671089 1757:26089023 1708:30944197 1659:17699642 1585:29436899 1536:15049807 1495:22763631 1438:35235703 1399:19948837 1350:29311231 1301:30687280 1267:: 3301. 1242:23614028 1194:PLOS ONE 1175:17079680 1077:18298818 1026:16040975 977:30459193 928:11073154 887:23628376 838:28222677 762:10646085 719:10656114 684:34228713 594:27009189 545:24149924 537:23835398 475:21413346 423:See also 395:type b, 367:fuchsine 320:capsule. 274:capsule. 147:Function 56:bacteria 2404:Commons 2303:Biofilm 2282:Fimbria 2267:S-layer 2248:Outside 2109:Bacilli 2025:Uterine 2010:Vaginal 1920:Aerobic 1903:ecology 1858:Medical 1797:1905528 1748:4893341 1699:6535587 1650:2045354 1576:6779390 1486:3416491 1390:2812187 1341:5820961 1292:6333632 1233:3628348 1202:Bibcode 1166:1636306 1126:2493441 1068:2267795 1017:1201234 968:6247091 878:3647402 829:5320719 742:Bibcode 675:8260180 585:4821241 169:viruses 2349:Monera 2119:Spiral 1911:Oxygen 1804:  1794:  1755:  1745:  1706:  1696:  1657:  1647:  1606:  1583:  1573:  1534:  1493:  1483:  1444:  1436:  1397:  1387:  1348:  1338:  1299:  1289:  1281:  1240:  1230:  1222:  1173:  1163:  1124:  1117:209741 1114:  1075:  1065:  1024:  1014:  975:  965:  926:  885:  875:  836:  826:  760:  717:  682:  672:  592:  582:  543:  535:  473:  463:  401:, and 2277:Pilus 2231:only: 2211:Porin 2203:only: 2182:only: 2104:Cocci 2080:Shape 2000:Mouth 1973:Other 1684:(6). 1442:S2CID 1326:(3). 953:(6). 541:S2CID 326:yeast 2320:and 2138:Cell 2005:Skin 1995:Lung 1901:and 1802:PMID 1753:PMID 1704:PMID 1655:PMID 1604:ISBN 1581:PMID 1532:PMID 1491:PMID 1434:PMID 1395:PMID 1346:PMID 1297:PMID 1279:ISSN 1238:PMID 1220:ISSN 1171:PMID 1122:PMID 1073:PMID 1022:PMID 973:PMID 947:mBio 924:PMID 883:PMID 834:PMID 758:PMID 715:PMID 680:PMID 590:PMID 533:PMID 502:help 482:2018 471:PMID 461:ISBN 324:The 85:and 73:and 50:The 2172:DAP 2167:NAG 2162:NAM 1990:Gut 1792:PMC 1784:doi 1780:119 1743:PMC 1735:doi 1694:PMC 1686:doi 1645:PMC 1637:doi 1571:PMC 1563:doi 1522:doi 1481:PMC 1473:doi 1426:doi 1385:PMC 1377:doi 1336:PMC 1328:doi 1287:PMC 1269:doi 1228:PMC 1210:doi 1161:PMC 1153:doi 1149:188 1112:PMC 1104:doi 1100:171 1063:PMC 1053:doi 1012:PMC 1004:doi 963:PMC 955:doi 914:doi 873:PMC 865:doi 824:PMC 814:doi 750:doi 738:322 707:doi 670:PMC 660:doi 609:at 580:PMC 572:doi 525:doi 415:or 340:of 133:in 2421:: 2342:: 2155:: 1848:: 1800:. 1790:. 1778:. 1774:. 1751:. 1741:. 1731:42 1729:. 1725:. 1702:. 1692:. 1682:57 1680:. 1676:. 1653:. 1643:. 1633:45 1631:. 1627:. 1579:. 1569:. 1559:10 1557:. 1553:. 1530:. 1518:52 1516:. 1512:. 1489:. 1479:. 1469:25 1467:. 1463:. 1440:. 1432:. 1422:45 1420:. 1416:. 1393:. 1383:. 1373:78 1371:. 1367:. 1344:. 1334:. 1324:86 1322:. 1318:. 1295:. 1285:. 1277:. 1263:. 1259:. 1236:. 1226:. 1218:. 1208:. 1196:. 1192:. 1169:. 1159:. 1147:. 1143:. 1120:. 1110:. 1098:. 1094:. 1071:. 1061:. 1047:. 1043:. 1020:. 1010:. 1000:73 998:. 994:. 971:. 961:. 949:. 945:. 922:. 910:49 908:. 904:. 881:. 871:. 861:19 859:. 855:. 832:. 822:. 810:17 808:. 804:. 756:. 748:. 736:. 713:. 703:79 701:. 678:. 668:. 656:19 654:. 650:. 627:. 588:. 578:. 566:. 562:. 539:. 531:. 521:21 519:. 494:: 492:}} 488:{{ 469:. 98:. 2016:) 2012:( 1838:e 1831:t 1824:v 1808:. 1786:: 1759:. 1737:: 1710:. 1688:: 1661:. 1639:: 1612:. 1587:. 1565:: 1538:. 1524:: 1497:. 1475:: 1448:. 1428:: 1401:. 1379:: 1352:. 1330:: 1303:. 1271:: 1265:9 1244:. 1212:: 1204:: 1198:8 1177:. 1155:: 1128:. 1106:: 1079:. 1055:: 1049:8 1028:. 1006:: 979:. 957:: 951:9 930:. 916:: 889:. 867:: 840:. 816:: 789:. 764:. 752:: 744:: 721:. 709:: 686:. 662:: 596:. 574:: 568:6 547:. 527:: 504:) 484:. 377:. 369:. 286:. 129:- 127:D 20:)

Index

Encapsulated bacteria

gram-positive
cell membrane
peptidoglycan
bacteria
polysaccharide
cell envelope
gram negative
gram-positive bacteria
bacterial outer membrane
lipopolysaccharides
lipoproteins
slime layer
glycocalyx

Polysaccharide § Bacterial capsular polysaccharides
polysaccharide
glutamic acid
Bacillus anthracis
India ink
drying out
virulence factor
phagocytosis
phagocytosis
viruses
hydrophobic
detergents
Escherichia coli
Neisseria meningitidis

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