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1981年和1933年共测定来自湖南13个地区(市、自治州)的56个县(市)的102个稻白叶枯菌分离株与所选定的国内、日本和国际稻作所的鉴别品种的互相作用,可分别将供试分离株区分为9.11和12个致病型,其分布无地区特点,且其中若干致病型的分离株与品种间的互作均存在强烈的反应,有明显的特异性,说明供试的稻白叶枯菌的致病力分化有生理小种存在,在日本鉴别品种上所区分的致病型VI和IV与日本白叶枯菌的致病型I和IV相同;在国际稻作所鉴别品种上所区分的致病型IV与XI与菲律宾的白叶枯菌的致病型I和IV相若。
A total of 102 isolates of K. cerevisiae from 56 counties (cities) in 13 regions (municipalities and autonomous prefectures) of Hunan Province in 1981 and 1933 were selected for identification with selected domestic, Japanese and international rice varieties , The tested isolates could be divided into 9.11 and 12 pathotypes, respectively. The distribution of the tested isolates was not regionally characterized, and there was a strong reaction between several pathogenic isolates and varieties. The results showed that the pathogenicity of the tested rice leaf blight existed in the presence of physiological races. The pathogenic forms VI and IV and the pathogenic forms I and II IV; the pathogenic forms IV and XI, which are distinguished on the IDO cultivars, are similar to the pathogenic forms I and IV of B. albicans in the Philippines.