Abstract
We report a new fungal disease, named stipe black rot, in a cultivation factory of Flammulina filiformis (an edible mushroom cultivated worldwide) in China. The pathogen was identified as Cladosporium anthropophilum by phylogenetic analysis and morphology characterization. C. anthropophilum was characterized to mainly infect the stipe bottom and cause stipe blackening and rot, with its optimal mycelial growth conditions consisting of 25°C, pH 7, and carbon and nitrogen sources of soluble starch and sodium nitrate, respectively. Furthermore, inhibitory evaluation showed that hydrogen peroxide silver disinfectant (HPSD) can efficiently inhibit the mycelial growth of C. anthropophilum, followed by the aqueous extracts of garlic and onion. This study identified C. anthropophilum as the pathogen for the new F. filiformis black rot disease and HPSD as an effective antagonist against the pathogen, which facilitates the understanding of fungal diseases and their control in edible mushrooms.
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