Phaeoacremonium parasiticum
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Phaeoacremonium parasiticum - A-C) cultures, D-E) conidiophores, F) mycelium showing prominent exudate droplets observed as warts, G-I) phialides, J) conidia, K-M) adelophialides with conidia, N-O) phialides, P) conidiophore, Q-R) phialides, - scale bars: D–R = 10 µm, scale bar for D applies to E–M (click on image to enlarge it)
Authors: Lizel Mostert, Johannes Z. Groenewald, Richard C. Summerbell, Walter Gams and Pedro W. Crous
Source: Studies in Mycology (2006) 54, 1-113
Authors: Lizel Mostert, Johannes Z. Groenewald, Richard C. Summerbell, Walter Gams and Pedro W. Crous
Source: Studies in Mycology (2006) 54, 1-113
Phaeoacremonium parasiticum (Ajello, Georg & C.J.K. Wang 1974) W. Gams, Crous & M.J. Wingf. 1996
This fungus infects the vascular system of grapevine and other crops, causing stunting, wilting and dieback. It has been associated with significant losses and has been recorded from various grape growing regions like the Americas, the Mediterranean and Australia. The species has been also reported as a human pathogen, causing opportunistic phaeohyphomycosis.
Colonies are brown when grown on PDA. Conidiophores are branched and 30-60 μm long. Conidia are elongated, 3-4 x 1½-2 µm large. The fungus is characterized by brown hyphae and by hyphal warts that are up to 3 μm diameter.
Synonyms:
Togninia parasitica (teleomorph synonym)
