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R.solani是一种世界性分布的寄主十分广泛(约43科,263种植物)且危害十分严重的重要粮食、经济作物病原菌。自1858年经Kuhn记载为马铃薯黑痣病病原菌以来,世界各地的专家、学者们对它的分类地位、形态学、病理学、生态学以及生理生化方面进行了长期的较为详尽的研究。许多学者曾以基质、培养性状、形态学和致病特性以及菌丝融合等为依据,将R·solant分成许多不同的亚种、群系、类型和组等等。而目前以其中的菌丝融合法分类应用得最为普遍。1969年Parmeter等将其试验的138个分离菌株应用菌丝融合法分为4个群:AG—1、AG—2、AG—3、AG—4群。1971年日本的生越明将234个菌株分为6
R. solani is a worldwide distribution of a host of economically important crop, economic crop pathogens, with a wide range of hosts (about 43 families and 263 species of plants). Since Kuhn recorded the pathogens of potato mole disease by Kuhn in 1858, experts and scholars all over the world have done a long and detailed study on its taxonomic status, morphology, pathology, ecology and physiology and biochemistry. Many scholars have divided R · solant into many different subspecies, groups, types, groups, etc. on the basis of matrix, culture traits, morphological and pathogenic characteristics and mycelial fusion. At present, the mycelium fusion method is most commonly used. In 1969, Parmeter et al. Divided 138 experimental isolates into four groups: AG-1, AG-2, AG-3 and AG-4 by mycelial fusion. In 1971 Japan’s Yue Ming will be 234 strains divided into 6