Morphology and viability of soybean yeast spot disease pathogen yeasts isolated from feces of Riptortus pedestris.
Intestine sections and faecal deposits of Riptortus pedestris adults collected at soyabean field in Kyotambacho, Kyoto, Japan, were surveyed in this study. Eremothecium coryli [Nematospora coryli] ascospores and vegetative cells and E. ashbyi ascospores were surveyed in the intestine and the faecal deposits. It was found that E. coryli vegetative cells were budding and increasing and E. ashbyi ascospores were germinating and extending mycelia by Dalmau plate culture on SNA+CC. However, no E. coryli ascorpores germinated. These results indicated that E. ashbyi ascospores and E. coryli vegetative cells remain viable in the intestine and after passing through the alimentary canal.