天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (7): 1136-1140.doi: 10.16333/j.1001-6880.2017.7.010

• 研究简报 • 上一篇    下一篇

海洋来源真菌Aspergillus sp.SCSIO 41501中含氮化合物

马宣1,2,农旭华1,黄钟辉1,2,梁潇1,2,王洁1,漆淑华1*   

  1. 1 中国科学院南海海洋研究所中国科学院海洋生物资源可持续利用重点实验室,广州 510301;2 中国科学院大学,北京100049
  • 出版日期:2017-07-29 发布日期:2017-08-11

N-containing Compounds of Marine-derived Fungus Aspergillus sp.SCSIO 41501

MA Xuan1,2,NONG Xu-hua1,HUANG Zhong-hui1,2,LIANG Xiao1,2,WANG Jie1,QI Shu-hua1*   

  1. 1 Key Laboratory of Marine Bio-resources Sustainable Utilization,Guangdong Key Laboratory of Marine MateriaMedica,Research Center for Marine Microbes,South China Sea Institute of Oceanology,Chinese Academy of Science,Guangzhou 510301,China; 2 Graduate University of the Chinese Academy of Sciences,Beijing 100049,China
  • Online:2017-07-29 Published:2017-08-11

摘要: 通过多种色谱柱层析(包括凝胶Sephadex LH-20、正相硅胶、中压液相色谱和高效液相色谱)分离手段,从来源于南海柳珊瑚Melitodessquamata的一株共附生真菌Aspergillus sp.SCSIO 41501的发酵液中分离纯化了11个含氮化合物,它们的化学结构通过核磁共振和质谱等技术分别鉴定为13-(S)-赭曲霉素A(1)、13-(S)-甲酯化赭曲霉素A(2)、13-(R)-赭曲霉素A(3)、4-(R)-OH-赭曲霉素A(4)、18-OH-赭曲霉素A(5)、transtorine(6)、quinolactacin C1(7)、marinamide(8)、methyl marinamide(9)、aspergilliamide(10)、anoectochine(11)。所有化合物进行了抗菌实验,其中化合物2对大肠杆菌、枯草芽孢杆菌、金黄色葡萄球菌具有较强的活性,其MIC值分别为31.25、7.8、15.6 μg/mL,化合物3显示中等抗菌活性,其MIC值分别为62.5、31.25、62.5 μg/mL。

关键词: 海洋真菌, Aspergillus sp.SCSIO 41501, 含氮化合物

Abstract: Eleven N-containing compounds were isolated from a culture broth of the fungal strain Aspergillus sp.SCSIO 41501 isolated from the China South Sea gorgonian Melitodessquamata. They were identified as13-(S)-ochratoxin A (1),13-(S)-ochratoxin A methyl ester (2),13-(R)-ochratoxin A (3),4-(R)-OHochratoxin A (4),18-OH-ochratoxin A (5),transtorine (6),quinolactacin C1(7),marinamide(8),methyl Marinamide(9),aspergilliamide(10),and anoectochine(11) on the basis of spectroscopic analyses (1D NMR and ESI-MS) and by comparison of the NMR data with literatures.All the compounds were tested for their antibacterial activity.Compounds2and 3showed moderateantibacterial activity against Escherichia coli, Bacillus subtilis and Staphylococcus aureus with MIC values of 31.25,7.8,15.6 μg/mL for 2,and 62.5,31.25,62.5 μg/mL for 3,respectively.

Key words: marine fungus, Aspergillus sp.SCSIO 41501, secondary metabolism