%0 Journal Article
%T Anastomosis groups of Rhizoctonia solani from cotton in northern China<br>中国北方棉花主产区立枯丝核菌的融合群鉴定
%A JING Yan
%A LI Xiao-Ni
%A YU Jin-Feng
%A <br>井岩
%A 李晓妮
%A 于金凤
%J 菌物学报
%D 2012
%I 
%X A total of 198 Rhizoctonia solani isolates were obtained from diseased cotton and soil samples in northern China(Shandong,Hebei and Henan provinces).Anastomosis group(AG) assay and 5.8S rDNA-internal transcribed spacer(ITS) sequence analysis showed the presence of multinucleate Rhizoctonia AG4-HG-I,AG4-HG-III and binucleate Rhizoctonia AG-A,AG-F and AG-Fb groups.The group AG4-HG-I was the dominant(86.86% of total isolates),followed by AG4-HG-III(10.10%),while the AG-A,AG-F,AG-Fb groups were represented by single isolate respectively.The Rhizoctonia AG-A,AG-F,AG-Fb groups were firstly reported from diseased cotton plants,and their pathogenicity to cotton needs further investigation.The 5.8S rDNA-ITS sequence analysis showed that the isolates could be distinctly separated based on their AG types.The isolates of the same AG(or sub-AG) showed high sequence identity.The nuclear phase observation showed that the numbers of nuclei were significantly different between the two subgroups of AG-4.
%K Rhizoctonia solani
%K anastomosis group
%K 5
%K 8S rDNA-ITS sequence
%K pathogenicity<br>立枯丝核菌
%K 融合群
%K 5.8SrDNA-ITS区序列
%K 致病性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=CA9F815FCB0F62294C4266BB6F902ACB&aid=7CA476D0C6D2F727E17D325F56D5BCC3&yid=99E9153A83D4CB11&vid=4AD960B5AD2D111A&iid=E158A972A605785F&sid=DFBC046213B3DD86&eid=4002B7787911C73B&journal_id=1672-6472&journal_name=菌物学报&referenced_num=0&reference_num=0