烟草抗赤星病（Alternaria　alternata）诱导因子的筛选  

Study of the Inducers of Induced Resistance to Tobacco Brown Spot (Alternaria alternata)

作　　者：杨献营[1] 王智发[1] 郑继法 董汉松 

机构地区：[1]山东省烟草公司,山东农业大学

出　　处：《中国烟草学报》1995年第2期8-16,共9页Acta Tabacaria Sinica

摘　　要：不同诱导因子的研究结果表明，真菌、细菌和病毒都可诱导烟草对赤星病产生抗性。抗性效应表现为发病率降低、严重度变小和病斑面积减少。真菌诱导因子中，只有弱毒株诱导产生抗性，抗性效应为７．４％～８０．１％；细菌诱导产生的抗性效应为１．３％～８５．８％；病毒及其组合的抗性诱导效应为３．９％～８３．２％。实验发现，真菌和细菌的某些菌株和某些病毒及其组合也可诱导烟草对赤星病的感病性，使病情加重。The Study of the different inducers shows that fungi,bacteria and viruses can all be used to induce resistance to tobacco brown spot. The induced effect are expressed by the reduction of diseases rate, seventy and necrosic area. Among the fungi, only the weak virulence strains have induced-resistance which the effect varies from 7. 4% to 80. 1%.The bacteria has the resistant effect of 1.3% ～85.8%, and the viruses 3.9% ～83.2%.Moreover,some of the inducers can also induce susceptibility with much more severey.

关 键 词：烟草 赤星病 诱导抗性 诱导因子 

分 类 号：S572.034[农业科学—烟草工业]