丝核菌菌丝融合群种类、寄生专化性及与温度的关系  

Hyphal Anastomosis Groups , Parasitic Specificity of Rhizoctonia 's AGs and Their Relationships with Temperature.

作　　者：张穗[1,2] 吴友三[1,2] 朱有缸 

机构地区：[1]河南农业大学生物工程学院 [2]沈阳农业大学植保系

出　　处：《生态学杂志》1999年第1期9-14,共6页Chinese Journal of Ecology

摘　　要：丝核菌（Ｒｈｉｚｏｃｔｏｎｉａｓｐｐ．）是最重要的土传植物病原菌之一，分布世界各地。１９２１年Ｍａｔｓｕｍｏｔｏ用菌丝融合群（ＡｎａｓｔｏｍｏｓｉｓＧｒｏｕｐ，简称ＡＧ）的方法来划分多核立枯丝核菌（Ｒ．ｓｏｌａｎｉ）在生理上特异的菌株［６］，Ｐａｒ...More than 200 specimens of plant seedling drop,root rot and sheath bling has been collected from 13 provinces (municipalities) and 58 districts (counties) from 1982-1995 in China. 162 strains of Rhizoctonia were identified by Ogoshi's strandard strains and the methods. These isolates were divided into multinucleates ( R.solani ), belonging to AG-1IA,AG-1IB,AG-1IC,AG-2-1,AG-2-2,AG-4 and AG-5 and binucleates ( Rhizoctonia spp.) belonging to AG A, AG B (0),AG D,AG F,AG G and AG K, respectively. The host plants of these isolates consist of 26 family,52 genera and 58 species. There was the evident of parasitic specifity for hosts in part AGs of Rhizoctonia . There was little difference of the identical AG strains under the effect of temperature, while there was greater difference among the distinct AGs under the effect of temperature. The parasitic specifity for hosts in Rhizoctonia's AGs was distinctly affected by temperature changes.

关 键 词：丝核菌 菌丝融合群 种类 寄主 温度 

分 类 号：S432.4[农业科学—植物病理学]