Marine bacteria associated with marine macroorganisms: the potential antimicrobial resources

	Marine bacteria associated with marine macroorganisms: the potential antimicrobial resources
	Zheng, L ; Han, XT ; Chen, HM ; Lin, W ; Yan, XJ
	2005
发表期刊	ANNALS OF MICROBIOLOGY
ISSN	1590-4261
卷号	55 期号:2 页码:119-124
文章类型	Article
摘要	In order to explore marine microorganisms with medical potential, marine bacteria were isolated from seawater, sediment, marine invertebrates and seaweeds collected from different coastal areas of the China Sea. The antimicrobial activities of these bacteria were investigated. Ethyl acetate extracts of marine bacterial fermentation were screened for antimicrobial activities using the method of agar diffusion. The results showed that 42 strains of the isolates have antimicrobial activity. The proportion of active bacteria associated with marine invertebrates (20%) and seaweeds (11%) is higher than that isolated from seawater (7%) and sediment (5%). The active marine bacteria were assigned to the genera Alteromonas, Pseudomonas, Bacillus and Flavobacterium. The TLC autobiographic overlay assay implied that the antimicrobial metabolites produced by four strains with wide antimicrobial spectrum were different. Due to a competitive role for space and nutrient, the marine bacteria associated with marine macroorganisms (invertebrates and seaweeds) could produce more antibiotic substances. These marine bacteria were expected to be potential resources of natural antibiotic products.; In order to explore marine microorganisms with medical potential, marine bacteria were isolated from seawater, sediment, marine invertebrates and seaweeds collected from different coastal areas of the China Sea. The antimicrobial activities of these bacteria were investigated. Ethyl acetate extracts of marine bacterial fermentation were screened for antimicrobial activities using the method of agar diffusion. The results showed that 42 strains of the isolates have antimicrobial activity. The proportion of active bacteria associated with marine invertebrates (20%) and seaweeds (11%) is higher than that isolated from seawater (7%) and sediment (5%). The active marine bacteria were assigned to the genera Alteromonas, Pseudomonas, Bacillus and Flavobacterium. The TLC autobiographic overlay assay implied that the antimicrobial metabolites produced by four strains with wide antimicrobial spectrum were different. Due to a competitive role for space and nutrient, the marine bacteria associated with marine macroorganisms (invertebrates and seaweeds) could produce more antibiotic substances. These marine bacteria were expected to be potential resources of natural antibiotic products.
关键词	Marine Bacteria Antimicrobial Activity Marine Invertebrates Seaweeds
学科领域	Biotechnology & Applied Microbiology ; Microbiology
收录类别	SCI
语种	英语
WOS记录号	WOS:000230202100007
引用统计	被引频次：71[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2716
专题	海洋生态与环境科学重点实验室
作者单位	1.Ningbo Univ, Marine Biotechnol Lab, Ningbo 315211, Peoples R China 2.First Inst Oceanog State Ocean Adm, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zheng, L,Han, XT,Chen, HM,et al. Marine bacteria associated with marine macroorganisms: the potential antimicrobial resources[J]. ANNALS OF MICROBIOLOGY,2005,55(2):119-124.
APA	Zheng, L,Han, XT,Chen, HM,Lin, W,&Yan, XJ.(2005).Marine bacteria associated with marine macroorganisms: the potential antimicrobial resources.ANNALS OF MICROBIOLOGY,55(2),119-124.
MLA	Zheng, L,et al."Marine bacteria associated with marine macroorganisms: the potential antimicrobial resources".ANNALS OF MICROBIOLOGY 55.2(2005):119-124.

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