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苦瓜白粉病的生物防治及病程代谢物质含量变化 预览

Studies on Biological Control and Changes of Metabolic Substances Content in Pathogenic Process of Bitter Gourd Powdery Mildew
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摘要 利用枯草芽孢杆菌BLG010对苦瓜白粉病进行防治试验,同时为了探明苦瓜白粉病的病程相关物质,利用气相色谱-质谱联用技术分析白粉病菌接种处理、白粉病菌+BLG010接种处理和蒸馏水喷施处理后8d和15d时苦瓜叶片的代谢物质差异。试验结果表明,BLG010对苦瓜白粉病的防治效果高达89.49%;苦瓜感染白粉病菌后,D-葡萄糖、延胡索酸和肌醇半乳糖苷含量在8d和15d均上调表达,而甘氨酸、甘油酸、L-谷氨酸和咖啡酸则表现为下调。这7种代谢物质的含量变化与苦瓜白粉病病程相关,施用BLG010可以降低苦瓜白粉病病情指数,避免这7种代谢物质含量的异常变化。 This paper conducted experiment on controlling bitter gourd powdery mildew using Bacillus subtilis(BLG010).And in order to find out the pathogenic process-related substances,the paper analyzed the differences in metabolic substances of bitter gourd leaves 8 days and 15 days after pathogen inoculation treatment,pathogen+BLG010 inoculation treatment and distilled water spraying treatment by GC-MS methodology.The results showed that the control effect of BLG010 on bitter gourd powdery mildew was as high as 89.49%.After pathogen infection,the contents of D-glucose,fumaric acid and galactinol on 8 days and 15 days were all up-regulated.While,the contents of glycine,glyceric acid,L-glutamic acid and caffeic acid were down-regulated.Contents of these 7 metabolic substances were related to the pathogenic process of bitter gourd powdery mildew.Application of BLG010 can decrease the disease index,and avoid the abnormal changes in contents of these 7 metabolic substances.
作者 周游 汪军 杨腊英 郭立佳 梁昌聪 刘磊 黄俊生 ZHOU You;WANG Jun;YANG La-ying;GUO Li-jia;LIANG Chang-cong;LIU Lei;HUANG Junsheng(Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences,Key Laboratory of PestsComprehensive Governance for Tropical Crops,Ministry of Agriculture and Rural Affairs,Haikou 571101,Hainan,China)
出处 《中国蔬菜》 北大核心 2019年第6期70-77,共8页 China Vegetables
基金 国家重点研发计划项目(2017YFD0200900) 中央级公益性科研院所基本科研业务专项(2017hzs1J001).
关键词 枯草芽孢杆菌 苦瓜白粉病 有机酸 氨基酸 糖类物质 Bacillus subtilis Bitter gourd powdery mildew Organic acid Amino acid Saccharide
作者简介 周游,男,博士,助理研究员,专业方向:植物病害生物防治,E-mail:zy563696@163.com;通讯作者(Corresponding author):黄俊生,男,博士,研究员,博士生导师,专业方向:植物病害生物防治,E-mail:h888111@126.com.
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