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题名: Effects of critical medium components on the production of antifungal lipopeptides from Bacillus amyloliquefaciens Q-426 exhibiting excellent biosurfactant properties
作者: Zhao, Pengchao1, 2;  Quan, Chunshan3;  Jin, Liming3;  Wang, Lina1, 2;  Wang, Jianhua4;  Fan, Shengdi3
关键词: Bacillus amyloliquefaciens Q-426 ;  Antifungal lipopeptides ;  Biosurfactants ;  Stable analysis ;  Critical environmental factors ;  Curvularia lunata (Walk) Boed
刊名: WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
发表日期: 2013-03-01
DOI: 10.1007/s11274-012-1180-5
卷: 29, 期:3, 页:401-409
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Biotechnology & Applied Microbiology
研究领域[WOS]: Biotechnology & Applied Microbiology
英文摘要: In this study, influence of three critical parameters nitrogen sources, initial pH and metal ions was discussed in the production of antifungal lipopeptides from Bacillus amyloliquefaciens Q-426. The results revealed that lipopeptide biosynthesis might have relations with the population density of strain Q-426 and some special amino acids. Also, the alkali-resistant strain Q-426 could grow well in the presence of Fe2+ ions below 0.8 M l(-1) and still maintain the competitive advantage below 0.2 M l(-1). Moreover, lipopeptides exhibited significant inhibitory activities against Curvularia lunata (Walk) Boed even at the extreme conditions of temperature, pH and salinity. Finally, biosurfactant properties of lipopeptides mixture were evaluated by use with totally six different methods including bacterial adhesion to hydrocarbons assay, lipase activity, hemolytic activity, emulsification activity, oil displacement test and surface tension measurement. The research suggested that B. amyloliquefaciens Q-426 may have great potential in agricultural and environmental fields.
关键词[WOS]: CELL-SURFACE HYDROPHOBICITY ;  CYCLIC LIPOPEPTIDES ;  ITURIN-A ;  SUBTILIS ;  BIOSYNTHESIS ;  OPTIMIZATION ;  HYDROCARBONS ;  PSEUDOMONAS ;  BACTERIA ;  STRAINS
语种: 英语
WOS记录号: WOS:000314534200002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137554
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Dalian Nationalities Univ, Dept Life Sci, Dalian 116600, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China

Recommended Citation:
Zhao, Pengchao,Quan, Chunshan,Jin, Liming,et al. Effects of critical medium components on the production of antifungal lipopeptides from Bacillus amyloliquefaciens Q-426 exhibiting excellent biosurfactant properties[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2013,29(3):401-409.
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