IN-VITRO PRODUCTION ON RICE PLANTS OF PERITHECIA OF MAGNAPORTHE-GRISEA FROM YUNNAN, CHINA

Go-inoculation of healthy standing rice plants with compatible isolate s of Magnaporthe grisea pathogenic to rice resulted in the production of perithecia on the detached portions of leaf sheaths. The isolates h ad been obtained from the same lesion on a diseased plant collected in Yunnan Province, China. Perithecia were also produced on dead tissue of leaf sheaths and nodes of standing rice plants in a moist chamber. These results strongly suggest that the teleomorph of M. grisea can oc cur in the upland rice fields in Yunnan.