Canadian Forest Service Publications
Phoma etheridgei sp. nov. from black galls and cankers of trembling aspen (Populus tremuloides) and its potential role as a bioprotectant against the aspen decay pathogen Phellinus tremulae. 1994. Hutchison, L.J.; Chakravarty, P.; Kawchuk, L.M.; Hiratsuka, Y. Canadian Journal of Botany 72(10): 1424-1431.
Available from: Northern Forestry Centre
Catalog ID: 19083
Phoma etheridgei is described and illustrated from isolates obtained from the bark of black galls and cankers of trembling aspen in Alberta. Comparisons are made with Phoma enteroleuca and several other mostly wood-inhabiting Phoma spp. using morphological, physiological, and molecular characteristics. A key is provided for the differentiation of Phoma spp. that could potentially be isolated from Populus wood. Phoma etheridgei produced antifungal compounds that were strongly inhibitory in vitro to the aspen decay pathogen Phellinus tremulae on agar, in liquid media and on aspen wood chips, and may play a role in the natural ecosystem as an antagonist to Phellinus tremulae.
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