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Inhibition of biofilm in Bacillus amyloliquefaciens Q-426 by diketopiperazines
Wang, Jian-Hua1,3; Yang, Cui-Yun2; Fang, Sheng-Tao2; Lu, Jian1; Quan, Chun-Shan4
2016-09-01
发表期刊WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷号32期号:9
文章类型Article
摘要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.
关键词Biofilm Diketopiperazines (Dkps) Extracellular Polymeric Substance (Eps) Real-time Pcr Bacillus Amyloliquefaciens Q-426
DOI10.1007/s11274-016-2106-4
收录类别SCI
语种英语
WOS记录号WOS:000382148200004
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/135828
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao, Peoples R China
4.Dalian Nationalities Univ, Life Sci Coll, Dalian 116600, Peoples R China
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GB/T 7714
Wang, Jian-Hua,Yang, Cui-Yun,Fang, Sheng-Tao,et al. Inhibition of biofilm in Bacillus amyloliquefaciens Q-426 by diketopiperazines[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2016,32(9).
APA Wang, Jian-Hua,Yang, Cui-Yun,Fang, Sheng-Tao,Lu, Jian,&Quan, Chun-Shan.(2016).Inhibition of biofilm in Bacillus amyloliquefaciens Q-426 by diketopiperazines.WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,32(9).
MLA Wang, Jian-Hua,et al."Inhibition of biofilm in Bacillus amyloliquefaciens Q-426 by diketopiperazines".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 32.9(2016).
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