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蜡蚧轮枝孢酯酶同工酶活性与菌株毒力相关性研究
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摘要:
研究蜡蚧轮枝孢不同菌株酯酶同工酶的产生水平与其对桃蚜毒力的关系.结果表明,不同菌株间产酶水平存在着较大的差异显著性,而且产酶水平的高低与其对桃蚜若虫毒力的变化表现出了明显的线性相关性,其中靠近阳极的主酶带与菌株毒力密切相关.
关键词:  蜡蚧轮枝孢  酯酶同工酶  桃蚜  毒力
DOI:
修订日期:2003-07-22
基金项目:
Analysis on Relationship between Esterase Isozymes and Strain Virulence of Verticillium lecanii
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Abstract:
Esterase isozyme from 11 Verticillium lecanii strains were studied and virulence of the fungi on Myzus persicae were determined by biomassy. The results showed that the difference of amount of esterase isozyme was significant between different strains. Its total amount of esterases and the frontier band esterase number were significantly correlated to the virulence (LT_(50)),with r=-0.9198 and r=-0.8820, respectively, which implied esterase isozyme assay could be employed to screen high virulent strain and to evaluate the possibility of virulence standardization.
Key words:  Verticillium lecanii,esterase isozyme,Myzus persicae,virulence

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