NDLI: Inhibition of biofilm in Bacillus amyloliquefaciens Q-426 by diketopiperazines

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Inhibition of biofilm in Bacillus amyloliquefaciens Q-426 by diketopiperazines

Content Provider	Semantic Scholar
Author	Wang, Jian-Hua Yang, Cui-Yun Fang, Shengtao Lu, Jian Quan, Chun-Shan
Copyright Year	2016
Abstract	Biofilm formation can make significant effects on bacteria habits and biological functions. In this study, diketopiperazines (DKPs) produced by strain of Bacillus amyloliquefaciens Q-426 was found to inhibit biofilm formed in the gas–liquid interface. Four kinds of DKPs were extracted from B. amyloliquefaciens Q-426, and we found that 0.04 mg ml−1 DKPs could obviously inhibit the biofilm formation of the strain. DKPs produced by B. amyloliquefaciens Q-426 made a reduction on extracellular polymeric substance (EPS) components, polysaccharides, proteins, DNAs, etc. Real-time PCR was performed to determine that whether DKPs could make an obvious effect on the expression level for genes related to biofilm formation in the strain. The relative expression level of genes tasA, epsH, epsG and remB which related to proteins, extracellular matrix, and polysaccharides, were downregulated with 0.04 mg ml−1 DKPs, while the expression level of nuclease gene nuc was significantly upregulated. The quantitative results of the mRNA expression level for these genes concerted with the quantitative results on EPS levels. All of the experimental results ultimately indicated that DKPs could inhibit the biofilm formation of the strain B. amyloliquefaciens Q-426.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1007/s11274-016-2106-4
PubMed reference number	27430510
Journal	Medline
Volume Number	32
Alternate Webpage(s)	http://ir.yic.ac.cn/bitstream/133337/17191/1/Inhibition%20of%20biofilm%20in%20Bacillus%20amyloliquefaciens%20Q-426%20by%20diketopiperazines.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s11274-016-2106-4
Journal	World journal of microbiology & biotechnology
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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