一株南海珊瑚细菌L-4抗肿瘤活性次生代谢产物研究  被引量:6

Anti-tumour Secondary Metabolites from the Coral-derived Bacteria L-4 of South China Sea

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作  者:郭琼[1] 王剑[2] 姚俊华[3] 雷玲芳[1] 陈小洁[1] 邓芸[1] 黄兆胜[1] 张翠仙[1] 

机构地区:[1]广州中医药大学中药学院,广东广州510006 [2]广州中医药大学基础医学院,广东广州510006 [3]中山大学分析测试中心,广东广州510275

出  处:《中山大学学报(自然科学版)》2013年第3期77-82,共6页Acta Scientiarum Naturalium Universitatis Sunyatseni

基  金:国家自然科学基金资助项目(81001370);中国科学院海洋生物资源可持续利用重点实验室联合基金资助项目(LMB101002);广东省大学生创新实验资助项目(1057211002)

摘  要:在研究珊瑚微生物混合共培养时发现:在混合培养中南海珊瑚内生细菌L-4对真菌的次生代谢产物明显产生影响,甚至产生此二微生物单独培养时所不产生的物质。对L-4发酵液进行次生代谢产物研究,从中分离纯化得到8个单体化合物,通过现代波谱分析(MS、NMR等)和物理常数对照等手段确定其结构依次为:环(色-丙)二肽(1)、环(甘-酪)二肽(2)、环(丙-酪)二肽(3)、环(缬-酪)二肽(4)、环(甘-苯丙)二肽(5)、环(甘-脯)二肽(6)、环(丙-缬)二肽(7)、环(甘-丙)二肽(8)均为环二肽类物质,且均首次从南海珊瑚内生细菌中分离得到,对进一步研究其可能的代谢机制具有重要意义。The influence of secondary metabolites on the mix-cultivate marine bacteria and fungus were studied. The result indicated that bacteria obviously affected the secondary metabolites of fungus in the mix-cultivate, and even produce substances that were not found in the fungus or bacteria separatel ture by TLC. Eight compounds were obtained from the fermentation broth of coral-derived bacteria y cul- L-4 in South China Sea. Their structures were determined to be cyclo (Trp-Ala) (1), cyclo (Gly-Tyr) (2), cyclo (Ala-Tyr) (3), and cyclo (Val-Tyr) (4) cyclo (Gly-Phe) (5), cyclo (Gly-Pro) (6), cyclo (Ala-Val) (7), and cyclo (Gly-Ala) (8) by spectroscopic analysis. The compounds 1, 2, 3, 4, 5, fi, 7, 8 were all cyclo-dipeptides and first obtained from the marine coral-derived bacterium of South China Sea, which attributed to further research metabolism of mix-cultivation.

关 键 词:珊瑚细菌 混合培养 次级代谢产物 环二肽 结构鉴定 

分 类 号:O629.5[理学—有机化学] P734.5[理学—化学]

 

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