Purification and Partial Characterization of Bacillomycin L Produced by Bacillus amyloliquefaciens K103 from Lemon
文献类型: 外文期刊
第一作者: Zhang, Bao
作者: Zhang, Bao;Cong, Yuan;Kong, Weijia;Li, Pinglan;Dong, Chunjuan;Shang, Qingmao
作者机构:
关键词: Bacillus amyloliquefaciens;Bacillomycin L;Mass spectrometry;Antifungal compounds;Biological control
期刊名称:APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY ( 影响因子:2.926; 五年影响因子:2.685 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Bacillus amyloliquefaciens K103 isolated from a lemon sample was used as a biocontrol agent to suppress Rhizoctonia solani Kühn and other fungal plant pathogens. Two antifungal compounds were purified from the culture broth using acid precipitation, gel permeation chromatography, and reversed-phase high-performance liquid chromatography. Matrix-assisted laser desorption ionization-time of flight mass spectrometry analysis indicated that the antifungal compounds were two isomers similar to bacillomycin L. One of the predominant active fractions was subjected to quadrupole time-of-flight mass spectrometry and amino acid analysis to determine its structural characteristics, revealing that the antifungal compound with a molecular mass of 1,034.5464 was identical to bacillomycin L. This is the second report of lemon microflora producing bacillomycin L or any antifungal compound, suppressing the growth of R. solani Kühn. Meanwhile, the study provided insights into the enormous potential of food microbial resources and bacillomycin L antibiotics in biological control and sustainable agriculture.
分类号: Q5
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