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Special Interest Group Meeting

Colletotrichum: Species, ecology and interactions

Organisers

Paul Cannon and Ulrike Damm

Species concepts in the economically important genus Colletotrichum have been undergoing revolutionary change in recent years. The old morphology-based species are rapidly being superseded by taxa that are largely defined by molecular sequence. Cryptic species are increasingly being recognized that cannot be reliably separated using morphological or cultural methods. In a number of cases, however, these demonstrably monophyletic units do not show marked host preference or shared pathogenic characteristics. This apparent paradox reduces the utility of the new classifications to the applied communities, especially to pathologists. We also know too little about the evolutionary significance of the varied nutritional/pathological strategies shown by Colletotrichum, especially the mechanisms by which colonies change status from endophyte/hemibiotroph to aggressive pathogen on the one hand, or to saprotroph on the other.

The meeting will bring together key workers from the academic and applied sectors to share knowledge, review progress and set priorities for further studies.

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