天然产物研究与开发 ›› 2022, Vol. 34 ›› Issue (6): 975-980.doi: 10.16333/j.1001-6880.2022.6.009

• 研究简报 • 上一篇    下一篇

中国南海海洋链霉菌Streptomyces sp.rssa1的化学成分研究

王   蓉1,郭志凯2,3*,程   芬1,冯全英1,詹夏菲1   

  1. 1海南省海洋与渔业科学院 海南省热带海水养殖技术重点实验室,海口 571126;2海南热带农业资源研究院 海南省热带农业生物资源保护与利用重点实验室;3中国热带农业科学院热带生物技术研究所 海南省热带微生物资源重点实验室,海口 571101
  • 出版日期:2022-06-28 发布日期:2022-06-30
  • 基金资助:
    海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(2019RC352);海南省热带海水养殖技术重点实验室开放课题基金(TMTOF202101);南峰专项(NFZX2021);中央级公益性科研院所基本科研业务费专项(1630052022016)

Study on the chemical components produced by the marine Streptomyces sp. rssa1 from the South China Sea

WANG Rong1,GUO Zhi-kai2,3*,CHENG Fen1,FENG Quan-ying1,ZHAN Xia-fei1   

  1. 1Hainan Provincial Key Laboratory of Tropical Maricultural Technologies,Hainan Academy of Ocean and Fisheries Sciences,Haikou 571126,China;2Hainan Key Laboratory of Conservation and Utilization of Tropical Agricultural Bioresources,Hainan Institute for Tropical Agricultural Resources;3Hainan Key Laboratory of Tropical Microbe Resources,Institute of Tropical Bioscience and Biotechnology,Haikou 571101,China
  • Online:2022-06-28 Published:2022-06-30

摘要: 对中国南海珊瑚样品来源的链霉菌Streptomyces sp.rssa1代谢产物进行研究。采用正相硅胶柱、ODS反相硅胶柱、Sephadex LH-20凝胶柱以及半制备高效液相色谱等分离方法,从该菌株的大米固体培养基发酵产物中分离得到10个化合物,通过NMR、MS等波谱数据,将化合物结构分别鉴定为四霉素A(1)、四霉素B(2)、kanglemycin M(3)、tryptophandehydrobutyrine diketopiperazine(4)、3-吲哚乙酰胺(5)、N-乙酰基色氨酸(6)、苯乙酸(7)、N-乙酰基酪胺(8)、苯甲酰胺(9)、苯乙酰胺(10)。抗菌活性筛选显示,化合物4对溶藻弧菌(Vibrio alginolyticus)的生长具有弱抑制活性。细胞毒活性测试结果显示,化合物3对巨噬细胞RAW 264.7具有细胞毒活性。环化核苷酸磷酸二酯酶PDE4水解抑制活性筛选未发现化合物在测试浓度下具有抑制活性。

关键词: 珊瑚, 链霉菌, 四烯大环内酯, 四霉素, 二酮哌嗪类化合物

Abstract:

Actinomycetes are an excellent treasure resource of structurally novel and bioactive natural products with potent medicinal values.The metabolites of the coral-associated Streptomyces sp.rssa1 from South China Sea were investigated.Totally,ten compounds were isolated from the solid fermentation extract using various chromatography methods including silica gel column,ODS reverse gel column,Sephadex LH-20 column and semipreparative HPLC.Their structures were identified as tetramycin A (1),tetramycin B (2),kanglemycin M (3),tryptophandehydrobutyrine diketopiperazine (4),3-indole acetamide (5),N-acetyltryptophan (6),phenylacetic acid (7),N-acetyltyramine (8),benzamide (9),phenylacetamide (10) by NMR,MS data analysis and comparison with previously reported data.The antibacterial,cytotoxic and phosphodiesterase PDE4 inhibition activities of several compounds were screened.The results showed that compound 4 possessed weak inhibitory activity against the growth of Vibrio alginolyticus.Compound 3 displayed cytotoxic activity towards RAW 264.7 cells.No compound showed phosphodiesterase PDE4 inhibition activity at the concentration of 5 μmol/L.

Key words: coral, Streptomyces sp., tetraene macrolides, tetramycin, diketopiperazine

中图分类号:  O629.9