哈茨木霉T_(2-16)代谢产物对花生种子活力和抗黄曲霉菌侵染能力的影响  

Effects of metabolic product of Trichoderma T_(2-16) on seed vigor and resistance to Aspergillsu flavus in peanut

作　　者：魏林[1,2] 梁志怀 曹福祥[1] 安哲宇[3] 李林[4] 刘登望[4] 

机构地区：[1]中南林业科技大学,湖南长沙410004 [2]湖南省植物保护研究所,湖南长沙410125 [3]中南大学研究生院隆平分院,湖南长沙410125 [4]湖南农业大学花生研究所,湖南长沙410128

出　　处：《中国油料作物学报》2009年第3期370-373,共4页Chinese Journal of Oil Crop Sciences

基　　金：湖南省博士后科研资助专项计划项目(2008RS4028);国家"十一五"科技支撑计划项目(2006BAD17B08)

摘　　要：应用哈茨木霉T2-16发酵产物对花生进行浸种处理,测定该发酵产物对花生种子活力及抗黄曲霉菌侵染能力的影响。结果表明:木霉发酵产物可提高花生的种子活力,表现为促进种子提早萌发、提高种子活力指数和降低种子相对电导率;该发酵产物可增强种子中与抗病性密切相关的酶活性,降低黄曲霉菌对花生的侵染。The metabolic product of Trichoderma T2-16 was applied in peanut by soaking seeds. The effect of T2-16metabolic product on seed vigor and the resistance to Aspergillsu flavus were studied. The results showed that the T2-16metabolic product increased germination percentage and germination index but decreased relative electrical conductivity,resulting in a higher germination and seed vigor. Meanwhile, the results showed that the activities related to disease resistance such as POD, PPO and PAL were increased. The infecting potential of A. flavus to peanut seeds was decreased. Therefore,it is concluded that T2-16metabolic product has a favorable effect on increasing the vigor of peanut seeds and improving the quality of peanut seedlings.

关 键 词：木霉 代谢产物 花生 种子活力 黄曲霉菌 保护酶 

分 类 号：S482.7[农业科学—农药学] S565.2[农业科学—植物保护]