文化大學機構典藏 CCUR:Item 987654321/24200
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    題名: Dimethyl disulfide is an induced systemic resistance elicitor produced by Bacillus cereus C1L
    作者: Huang, CJ (Huang, Chien-Jui)
    Tsay, JF (Tsay, Jia-Fang)
    Chang, SY (Chang, Shu-Yu)
    Yang, HP (Yang, Hsiu-Ping)
    Wu, WS (Wu, Wen-Shi)
    Chen, CY (Chen, Chao-Ying)
    貢獻者: Dept Hort & Biotechnol
    關鍵詞: Bacillus cereus
    induced resistance
    volatiles
    dimethyl disulfide
    日期: 2012-09
    上傳時間: 2013-02-20 10:43:45 (UTC+8)
    摘要: BACKGROUND: Bacillus cereus C1L is a plant growth-promoting rhizobacterium and can elicit induced systemic resistance (ISR) in plants against necrotrophic pathogens. However, little is known about ISR elicitors produced by B. cereus C1L, and no ISR elicitor has been identified and characterised. Therefore, the objective of this study is to identify volatile ISR elicitor(s) produced by B. cereus C1L. RESULTS: The volatile metabolites produced by B. cereus C1L were extracted, separated and identified by solid-phase microextraction, gas chromatography and mass spectrometry. Dimethyl disulfide (DMDS) was the only separated metabolite being determined. Afterwards, application of DMDS by means of soil drench significantly protected tobacco and corn plants against Botrytis cinerea and Cochliobolus heterostrophus, respectively, under greenhouse conditions. The results reveal that DMDS could play an important role in ISR by B. cereus C1L. CONCLUSION: This is the first report of DMDS as an elicitor produced by an ISR-eliciting B. cereus strain and its ability to suppress plant fungal diseases under greenhouse conditions. It is suggested that DMDS has potential for practical use in controlling plant foliar diseases besides soil fumigation. Copyright (c) 2012 Society of Chemical Industry
    關聯: PEST MANAGEMENT SCIENCE 卷: 68 期: 9 頁數: 1306-1310
    顯示於類別:[園藝暨生物技術學系] 期刊論文

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