Genetically closely related but phenotypically divergent Trichoderma species cause green mold disease in oyster mushroom farms worldwide.

ABSTRACT: The worldwide commercial production of the oyster mushroom Pleurotus ostreatus is currently threatened by massive attacks of green mold disease. Using an integrated approach to species recognition comprising analyses of morphological and physiological characters and application of the genealogical concordance of multiple phylogenetic markers (internal transcribed spacer 1 [ITS1] and ITS2 sequences; partial sequences of tef1 and chi18-5), we determined that the causal agents of this disease were two genetically closely related, but phenotypically strongly different, species of Trichoderma, which have been recently described as Trichoderma pleurotum and Trichoderma pleuroticola. They belong to the Harzianum clade of Hypocrea/Trichoderma which also includes Trichoderma aggressivum, the causat

SUBMITTER: Komon-Zelazowska M 

PROVIDER: S-EPMC2168202 | biostudies-literature | 2007 Nov

REPOSITORIES: biostudies-literature