Canadian Forest Service Publications

Physiological and cytological studies of basidiospore repetition in Rhizoctonia solani Kuhn. 1964. Whitney, H.S. Canadian Journal of Botany 42: 1397-1404.

Year: 1964

Issued by: Laurentian Forestry Centre

Catalog ID: 16199

Language: English

Availability: PDF (request by e-mail)

Mark record


Mycelium of a clone of Thanatephorus cucumeris (Frank) Donk (Rhizoctonia solani Kühn) produced ether-soluble substances which, when incorporated into water agar, caused basidiospores to shift from germ tube development to repetition. Repetition activity was localized in chromatograms by bioassay. Germ tubes less than 48 hours old produced ballistospores when transferred from water agar to fruiting cultures. Cells of older hyphae had apparently lost this capacity. Repetition spores, and ballistospores produced by germ tubes, were uninucleate and gave rise to cultures typical of the parent fungus. The relevance of repetition to survival and to phylogeny was discussed.