采用抑菌活性追踪的方法,利用硅胶柱色谱和半制备反相高效液相色谱法对一株南海海洋来源真菌SCSIO 81-F2的发酵产物进行分离,纯化获得3个单体化合物,通过理化性质、MS、NMR及X-单晶衍射分析,分别鉴定为xanthocillin X dimethylether(1)...采用抑菌活性追踪的方法,利用硅胶柱色谱和半制备反相高效液相色谱法对一株南海海洋来源真菌SCSIO 81-F2的发酵产物进行分离,纯化获得3个单体化合物,通过理化性质、MS、NMR及X-单晶衍射分析,分别鉴定为xanthocillin X dimethylether(1)、xanthocillin X monomethylether(2)、6',8'-dimethoxy xanthocillin X dimethylether(3)。经18S r DNA序列分析并构建系统发育进化树,鉴定该菌株为曲霉属真菌Aspergillus sp.SCSIO 81-F2。海洋曲霉菌Aspergillus sp.SCSIO 81-F2是一个能产生具有抗菌活性xanthocillin类抗生素的新来源。展开更多
Bioassay-guided fractionation of the crude extract from Penicillium commune SD-118, a fungus obtained from a deep-sea sediment sample, resulted in the isolation of a known antibacterial compound, xanthocillin X (1), a...Bioassay-guided fractionation of the crude extract from Penicillium commune SD-118, a fungus obtained from a deep-sea sediment sample, resulted in the isolation of a known antibacterial compound, xanthocillin X (1), and 14 other known compounds comprising three steroids (2-4), two ceramides (5 and 6), six aromatic compounds (7-12), and three alkaloids (13-15). Xanthocillin X (1) was isolated for the first time from a marine fungus. In the bioassay, xanthocillin X (1) displayed remarkable antimicrobial activity against Staphylococcus aureus and Escherichia coli, and significant cytotoxicity against MCF-7, HepG2, H460, Hela, Du145, and MDA-MB-231 cell lines. Meleagrin (15) exhibited cytotoxicity against HepG2, Hela, Du145, and MDA-MB-231 cell lines. This is the first report of the cytotoxicity of xanthocillin X (1).展开更多
文摘采用抑菌活性追踪的方法,利用硅胶柱色谱和半制备反相高效液相色谱法对一株南海海洋来源真菌SCSIO 81-F2的发酵产物进行分离,纯化获得3个单体化合物,通过理化性质、MS、NMR及X-单晶衍射分析,分别鉴定为xanthocillin X dimethylether(1)、xanthocillin X monomethylether(2)、6',8'-dimethoxy xanthocillin X dimethylether(3)。经18S r DNA序列分析并构建系统发育进化树,鉴定该菌株为曲霉属真菌Aspergillus sp.SCSIO 81-F2。海洋曲霉菌Aspergillus sp.SCSIO 81-F2是一个能产生具有抗菌活性xanthocillin类抗生素的新来源。
基金Supported by the Ministry of Science and Technology(No.2010CB833802)the Knowledge Innovation Program of Chinese Academy of Sciences(No.KSCX2-EW-G-12B)the National Natural Science Foundation of China(No.30910103914)
文摘Bioassay-guided fractionation of the crude extract from Penicillium commune SD-118, a fungus obtained from a deep-sea sediment sample, resulted in the isolation of a known antibacterial compound, xanthocillin X (1), and 14 other known compounds comprising three steroids (2-4), two ceramides (5 and 6), six aromatic compounds (7-12), and three alkaloids (13-15). Xanthocillin X (1) was isolated for the first time from a marine fungus. In the bioassay, xanthocillin X (1) displayed remarkable antimicrobial activity against Staphylococcus aureus and Escherichia coli, and significant cytotoxicity against MCF-7, HepG2, H460, Hela, Du145, and MDA-MB-231 cell lines. Meleagrin (15) exhibited cytotoxicity against HepG2, Hela, Du145, and MDA-MB-231 cell lines. This is the first report of the cytotoxicity of xanthocillin X (1).
