杨树溃疡病菌异核体现象的研究

doi:10.11707/j.1001-7488.20060526

Scientia Silvae Sinicae ›› 2006, Vol. 42 ›› Issue (5): 142-144.doi: 10.11707/j.1001-7488.20060526

Study on Heterokaryotic Phenomenon of Poplar Canker Pathogen

Yu Zhongdong¹,Liu Lili¹,Cao Zhimin¹,Zhang Xingyao²

1.College of Forestry,Northwest A&F University Yangling 712100; 2.Chinese Academy of Forestry Beijing 100091

Received:2004-09-29 Revised:1900-01-01 Online:2006-05-25 Published:2006-05-25

Abstract

Abstract:

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.

Key words: pathogenicity, heterokaryotic, RFLP

Yu Zhongdong;Liu Lili;Cao Zhimin;Zhang Xingyao. Study on Heterokaryotic Phenomenon of Poplar Canker Pathogen[J]. Scientia Silvae Sinicae, 2006, 42(5): 142-144.

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Study on Heterokaryotic Phenomenon of Poplar Canker Pathogen

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