出芽短梗霉菌株YW1防治储藏期草莓灰霉病的研究  

Efficacy of Aureobasidium pullulans YW1 in Suppression of Gray Mold on Post-harvest Strawberry Fruits

作　　者：黄蓉[1,2] 杨龙[1] 张静[1] 李国庆[1] 

机构地区：[1]华中农业大学湖北省作物病害监测与安全控制重点实验室,武汉430070 [2]江西省农业科学院植物保护研究所,南昌330200

出　　处：《中国生物防治学报》2013年第4期531-537,共7页Chinese Journal of Biological Control

基　　金：国家公益性行业(农业)专项(201303025);江西省农业科学院创新基金博士启动项目(2011CBS007)

摘　　要：本文研究了出芽短梗霉Aureobasidium pullulans菌株Yw1防治储藏期草莓果实灰霉病Botrytiscinerea的效果，并对其防病机制进行了初步探索。结果表明，菌株Ywl可以有效的控制储藏期草莓灰霉病的发生，发病率可由95．1％降至30．5％-55．6％，菌株Ywl产生的挥发性物质可以抑制灰葡萄孢菌丝生长，抑制率达到52．1％。去除菌体的上清液对灰霉菌无明显抑制活性，说明其抗菌作用机制可能是活菌的竞争作用。由此可见，菌株Ywl是1株有应用潜力的生防菌。This study evaluated efficacy of Aureobasidium pullulans strain YW1 in suppression of post-harvest strawberry Botrytis fruit rot （BFR） caused by Botrytis cinerea and investigated its biocontrol mechanism. Results showed that strain YW1 effectively suppressed BFR on post-harvest strawberry fruits, and the disease incidence depressed from 95.1% to 30.5%--55.6%. The volatile organic compounds released by strain YW1 effectively suppressed mycelial growth of B. cinerea and the suppression ratio was 52.1%. Cell free supernatant of the YEPD culture of strain YW1 could not suppress the BFR, so may be strain YW1 out-compete B. cinerea on strawberry fruits depend on viable cells. This study suggests that the strain YW1 ofA. pullulans is a promising agent for control ofB. cinerea and further research is worthy.

关 键 词：出芽短梗霉 灰霉病 储藏期病害 

分 类 号：S476.8[农业科学—农业昆虫与害虫防治]