杨树溃疡病菌异核体现象的研究

作     者：余仲东 刘莉丽 曹支敏 张星耀 Yu Zhongdong;Liu Lili;Cao Zhimin;Zhang Xingyao

作者机构：西北农林科技大学林学院杨凌712100 中国林业科学研究院北京100091 

出 版 物：《林业科学》 (Scientia Silvae Sinicae)

年 卷 期：2006年第42卷第5期

页      面：142-144页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 

基　　金：杨树溃疡病菌营养体亲和性研究(校基金653021) 

主　　题：致病力 异核体 RFLP 

摘      要：The results of inoculation on apples with heterokaryotic strains show that heterokaryotic phenomenon is one of important reasons of poplar canker pathogenicity variation. The pathogenicity of heterokaryotic strains relates with the weak wild parental strain significantly. The study of cytology manifests nucleolus have transferred between vegetative compatibility strains. The wild parental strain usually has only one nucleolus per cell, while the heterokaryotic strain often has two or more nucleolus per cell. The analysis of ITS-rDNA-RFLP implies the pathogenicity variation may be related with cytoplasm flow.