'''Ergot''' (''ergotna gliva'') je grupa [[gljiva]] roda -{''Claviceps''}-.<ref name="Schardl2006">{{cite journal|authorvauthors=Schardl CL, Panaccione DG, Tudzynski P |year=2006|title=Ergot alkaloids – biology and molecular biology|journal=The Alkaloids: Chemistry and Biology|volume=63|pages=45-86|pmid=17133714|doi=10.1016/S1099-4831(06)63002-2|series=The Alkaloids: Chemistry and Biology|isbn=978-0-12-469563-4}}</ref> Najprominetniji član ove grupe je -{''[[Claviceps purpurea]]''}-. Ta gljiva raste na [[raž]]i i srodnim biljkama, i proizvodi [[alkaloid]]e koji uzrokuju [[ergotizam]] kod ljudi i drugih sisara koji konzumiraju žitarice kontaminirane njenim struktura zrenja (zvanim ergot [[sklerocija]]).<ref>-{[http://www.mondofacto.com/facts/dictionary?ergot ergot], online medical dictionary</ref><ref>[http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/three/000036589.htm ergot], Dorland's Medical Dictionary}-</ref> -{''Claviceps''}- obuhvata oko 50 poznatih vrsta, uglavnom u tropskim regionima. Ekonomski značajne vrste su -{''C. purpurea''}- (parazitna na [[Poaceae|travama]] i žitaricama), -{''C. fusiformis''}- (na [[Afrički proso|afričkom prosu]], bufel travi), -{''C. paspali''}- (na [[Paspalum|dalis travi]]), i -{''C. africana''}-<ref>{{Cite journal | url = http://www.apsnet.org/online/feature/ergot/0218-01F.pdf | doi = 10.1094/PDIS.1998.82.4.356 | title = Ergot: A New Disease Threat to Sorghum in the Americas and Australia | year = 1998 |last=Bandyopadhyay|first=Ranajit| journal = Plant Disease | volume = 82 | pages = 356 | last2 = Frederickson | first2 = Debra E. | last3 = McLaren | first3 = Neal W. | last4 = Odvody | first4 = Gary N. | last5 = Ryley | first5 = Malcolm J. | postscript = <!--None--> | issue = 4 }}</ref> (na [[Сирак|sirku]]).
