期刊
BIOLOGICAL CONTROL
卷 92, 期 -, 页码 66-76出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.biocontrol.2015.09.005
关键词
Arabidopsis; Bacillus megaterium; Black pepper; Endophytic bacteria; Ginger; Volatile organic compounds
资金
- Department of Biotechnology, Ministry of Science and Technology, New Delhi, India [BT/PR13785/AGR/05/511/2010]
Black pepper root endophytic Bacillus BP17 was identified as Bacillus megaterium (BmBP17) by a panel of phenotypic and genotypic methods. BmBP17 was found genetically close to industrially significant B. megaterium WSH002 and divergent from clinical Bacillus strains. Tracking with genetically tagged BmBP17 revealed its endophytism in diverse plant species such as Piper nigrum, Zingiber officinale and Arabidopsis thaliana. BmBP17 released antimicrobial volatiles against several pathogens viz., Phytophthora capsici, Pythium myriotylum, Athelia rolfsii, Gibberella moniliformis, Colletotrichum gloeosporioides, Rhizoctonia solani, Magnaporthe oryzae, Ralstonia solanacearum, and Xanthomonas axonopodis pv. punicae. Chemical compounds belong to hydrocarbons, heterocyclics, esters and sulfoxides were dominantly present in solvent extracts of BmBP17 in GC/MS profile. Dynamic head space GC/MS analysis revealed broad spectrum antimicrobials such as Pyrazine, 2-ethyl-3-methyl-; Pyrazine, 2,5-dimethyl-; Pyrazine, ethyl-; and Pyrazine, methyl-in the volatiles of BmBP17. Pyrazine, 2-ethyl-3-methyl was found most inhibitory followed by Pyrazine, 2-ethyl-; Pyrazine, 2, 5-dimethyl and Pyrazine, 2-methyl which can be exploited for crop protection. (C) 2015 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据