Antibacterial and antilarval compounds from marine bacterium Pseudomonas rhizosphaerae
Qi, SH; Xu, Y; Gao, J; Qian, PY; Zhang, S; shuhuaqi2001@yahoo.com
2009
发表期刊ANNALS OF MICROBIOLOGY
ISSN1590-4261
卷号59期号:2页码:229-233
摘要In order to obtain non-toxic, antifouling natural products from marine organisms, we studied on the marine bacterium Pseudomonas rhizosphaerae isolated from deep sea sediment. Bioassay-guided column chromatography techniques were used to separate and purify compounds. Extensive spectral analyses including 1D NMR spectra and GC-MS were employed for structure elucidation of the compounds. Antibacterial activity of the isolated compounds towards eight marine bacterial strains was measures by optical density, while antilarval activity was evaluated in settlement inhibition assays with laboratory-reared Balanus amphitrite and Bugula neritina larvae. In total, nine compounds including six diketopiperazine were obtained. Among them, cyclo-(Tyr-Pro), cyclo-(Tyr-Ile), cyclo-(Phe-Pro), cyclo-(Val-Pro), 3-phenyl-2-propenoic acid, and uracil had various antibacterial activities towards five marine fouling bacteria, furthermore, bis(2-ethylhexyl)phthalate, cyclo-(Tyr-Ile), cyclo-(Phe-Pro), cyclo-(Val-Pro), and 3-phenyl-2-propenoic acid showed antilarval effect on larval settlement of barnacle Balanus amphitrite and bryozoan Bugula neritina. The results suggested that marine bacterium Pseudomonas rhizosphaerae could produce potent antibacterial and antilarval diketopiperazine and benzene-type secondary metabolites.
部门归属[Qi, Shu-Hua; Zhang, Si] Chinese Acad Sci, S China Sea Inst Oceanol, Guangdong Key Lab Marine Mat Med, Guangzhou 510301, Guangdong, Peoples R China; [Xu, Ying; Qian, Pei-Yuan] Hong Kong Univ Sci & Technol, Dept Biol, Coastal Marine Lab, Kowloon, Hong Kong, Peoples R China; [Gao, Jun] Chinese Acad Sci, Qingdao Inst Biomass Energy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China
关键词Marine Bacterium Pseudomonas Rhizosphaerae Antibacterial Antilarval Diketopiperazine
学科领域Biotechnology & Applied Microbiology ; Microbiology
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收录类别sci
资助项目LMB
WOS记录号WOS:000267606200005
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被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5102
专题中科院海洋生物资源可持续利用重点实验室
通讯作者shuhuaqi2001@yahoo.com
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Qi, SH,Xu, Y,Gao, J,et al. Antibacterial and antilarval compounds from marine bacterium Pseudomonas rhizosphaerae[J]. ANNALS OF MICROBIOLOGY,2009,59(2):229-233.
APA Qi, SH,Xu, Y,Gao, J,Qian, PY,Zhang, S,&shuhuaqi2001@yahoo.com.(2009).Antibacterial and antilarval compounds from marine bacterium Pseudomonas rhizosphaerae.ANNALS OF MICROBIOLOGY,59(2),229-233.
MLA Qi, SH,et al."Antibacterial and antilarval compounds from marine bacterium Pseudomonas rhizosphaerae".ANNALS OF MICROBIOLOGY 59.2(2009):229-233.
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