Welcome to the Colletotrichum database


Colletotrichum was described in 1831 by Corda with C. lineola. Today species in this genus are known as destructive pathogens that cause diseases and crop losses in numerous plants worldwide.

Colletotrichum forms hyaline conidia in acervuli breaking through the epidermis of the host plant. The teleomorph is Glomerella (Glomerellaceae, Hypocreomycetidae, Sordariomycetes, Ascomycota).


While a large number of species have been described (802records in MycoBank), only 66 species were listed as being in current use by Hyde et al. (2009). Taxonomy and nomenclature in this genus is confusing: the identity of many species is questionable, while large species complexes assumed to contain various species (Johnston & Jones 1997, Sreenivasaprasad & Talhinhas 2005).


Species identification is difficult because of insufficient information in the original descriptions, missing type strains or sequence data, similar and highly variable morphological traits, low resolution of species within species complexes by using ITS sequences and different degrees of host specificity.


This online identification tool includes multi-locus sequence data, morphological and cultural characters and pictures of each species based on studies of ex-type or reference strains. The database currently comprises species with curved conidia from herbaceous hosts including the type species of the genus (Damm et al. 2009), as well as data from the studies of Damm et al. (2012a,b) and Weir et al. (2012) on the Colletotrichum acutatum, Colletotrichum boninense and Colletotrichum gloeosporioides species complexes as well as many other recently described or typified species (see summary by Cannon et al. 2012).


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