摘要
主要通过对烟草野火病菌菌株(Pseudom onas syringae pv. tabaci)致病力与其粗毒素毒力的相关性的研究,评价了烟草野火病菌毒素在致病过程中的作用。结果表明:①野火菌毒素毒力与其菌株的致病力呈极显著相关性,相关系数r达0.928;②高感和中感品种K326,云85对病原菌的感病性与对菌毒素的敏感性在P<0.05的水平上有相关关系;③从病斑处可以分离到该毒素,再接种能重现野火病症状;④抑菌物质对病原菌和病菌毒素的抑制作用相一致。
The pathogenicity of tabtoxin is appraised mostly based on whether the pathogenicity of strains is correlative or not with the virulence of their tabtoxins. The results are that： ①The correlation of the tabtoxins＇ virulence and the strains＇ pathogenicity is ②The reaction of Yunyan 85 and K326 to the strains and el;③Tabtoxin could be isolated from the disease area and The inhibitory action of inhibitory substance to the strains best significant and the coefficient is 0. 928 ; their tabtoxins is correlative at P 〈 0.05 levbrings about the wild-fire symptom again;④ and their tabtoxins are in agreement.
出处
《云南农业大学学报》
CAS
CSCD
2007年第5期650-653,共4页
Journal of Yunnan Agricultural University
基金
云南省烟草公司资助项目
关键词
烟草野火病菌
野火菌毒素
致病力
毒力
Pseudomonas syringae pv. tabaci
tabtoxin
pathogenicity
virulence
