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A new cyclic lipopeptide isolated from Bacillus amyloliquefaciens HAB-2 and safety evaluation
Pengfei Jin1, Haonan Wang1, Wenbo Liu1
1College of Environment and Plant Protection, Hainan University, Haikou 570228, China.
Abstract:
Bacillus is the most widely studied biocontrol agent and has been extensively used in the development of biopesticides and fungicides. In this study, a new cyclic lipopeptide was isolated from Bacillus amyloliquefaciens HAB-2 by column chromatography on silica gel and Sephadex LH-20, and its structures was elucidated on the basis of spectroscopic analysis. This compound is a bacillomycin d-like compound, named as bacillomycin DC. The activity of bacillomycin DC was evaluated against C. gloeosporioides Penz. The median inhibitory concentration of bacillomycin DC was 1.21μg/mL. In addition, bacillomycin DC may have low toxicity to aquatic species as indicated by its 96h half maximum lethal concentration of 22.20μg/mL to zebrafish (Danio rerio). Our current study further provides evidence that bacillomycin DC is a potent fungicide against C. gloeosporioides Penz.
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