文献类型： 外文期刊
第一作者： Changsong Zou
作者： Changsong Zou;Zhifang Li;Diqiu Yu
作者机构：
关键词： 2-pentylfuran;A. thaliana;B. megaterium;gas chromatography-mass spectrometry (GC/MS);plant growth-promoting rhizobacteria (PGPR);solid phase microextraction (SPME)
期刊名称：JOURNAL OF MICROBIOLOGY （ 影响因子：3.422； 五年影响因子：3.28 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： Several chemical changes in soil are associated with plant growth-promoting rhizobacteria. An endosporeforming bacterium, strain XTBG34, was isolated from a Xishuangbanna Tropical Botanical Garden soil sample and identified as Bacillus megaterium. The strain's volatiles had remarkable plant growth promotion activity in Arabidopsis thaliana plants; after 15 days treatment, the fresh weight of plants inoculated with XTBG34 was almost 2-fold compared with those inoculated with DH5α. Head space volatile compounds produced by XTBG34, trapped with headspace solid phase microextraction and identified by gas chromatography-mass spectrometry, included aldehydes, alkanes, ketones and aroma components. Of the 11 compounds assayed for plant growth promotion activity in divided Petri plates, only 2-pentylfuran increased plant growth. We have therefore identified a new plant growth promotion volatile of B. megaterium XTBG34, which deserves further study in the mechanisms of interaction between plant growth-promoting rhizobacteria and plants.
分类号： Q93
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