Antifungal peptide produced by Paenibacillus polymyxa BRF-1 isolated from soybean rhizosphere

文献类型: 外文期刊

第一作者: Chen, Xueli

作者: Chen, Xueli;Wang, Guanghua;Xu, Meina;Jin, Jian;Liu, Xiaobing;Chen, Xueli

作者机构:

关键词: Paenibacillus polymyxa;Biolog identification;16S rDNA;antifungal activity;peptide

期刊名称:AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH ( 影响因子:0.539; 五年影响因子:0.564 )

ISSN: 1996-0808

年卷期: 2010 年 4 卷 24 期

页码:

收录情况: SCI

摘要: A bacterial strain BRF-1 that produced antifungal peptide was isolated from soybean rhizosphere and identified as Paenibacillus polymyxa by combination approaches of morphological and physiological tests, Biolog identification and 16S rDNA sequencing. Its cell free metabolite can inhabit many plant pathogenic fungi growth and its activity was stable to proteinase K digestion, autoclave and lower pH treatments. The antifungal substance was separated by (NH(4))(2)SO(4) and purified by Sephadex G-50, and acquired short peptide with molecular weight about 35.4 kDa, which has antifungal activity against Rhizoctonia solani.

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