Canadian Forest Service Publications

Inhibition of Endocronartium harknessii spore germination by metabolites of Scytalidium urendinicola and S. album, and the influence of growth medium on inhibitor production. 1983. Fairbairn, N.; Pickard, M.A.; Hiratsuka, Y. Canadian Journal of Botany 61(8): 2147-2152.

Year: 1983

Available from: Northern Forestry Centre

Catalog ID: 11165

Language: English

CFS Availability: Order paper copy (free), PDF (request by e-mail)

Abstract

Endocronartium harknesii spores, stored desiccated at -20 °C for 6 weeks, germinated within 6 h at room temperature in phosphate buffer, pH 6. Type strains of Scytalidium album Beyer and Klingström and S. uredinicola Kuhlman et al. and two other isolates of S. uredinicola were compared for their ability to produce compounds which inhibit the germination of E. harknesii spores. Of five media tested, malt extract broth produced best results. Scytalidium album produced a fraction, molecular weight greater than 10 000, which caused spore lysis. Two strains of S. uredinicola formed chloroform extractable material, molecular weight less than 10 000, that inhibited germination of E. harknesii spores.

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