Identification and Bioactivity of Compounds from the Mangrove Endophytic Fungus Alternaria sp.

被引：43

作者：

Wang, Jinhua ^{[1
]}

Ding, Weijia ^{[1
]}

Wang, Ruimin ^{[1
]}

Du, Yipeng ^{[1
]}

Liu, Huanliang ^{[1
]}

Kong, Xuehua ^{[1
]}

Li, Chunyuan ^{[1
]}

机构：

[1] South China Agr Univ, Coll Mat & Energy Formerly Coll Sci, Guangzhou 510642, Guangdong, Peoples R China

来源：

MARINE DRUGS | 2015年 / 13卷 / 07期

基金：

中国国家自然科学基金;

关键词：

DERIVATIVES; PRODUCTS; METABOLITES; XANTHONES; SEA;

D O I：

10.3390/md13074492

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

Racemic new cyclohexenone and cyclopentenone derivatives, (+/-)-(4R*,5S*,6S*)-3-amino-4,5,6-trihydroxy-2-methoxy-5-methyl-2-cyclohexen-1-one (1) and (+/-)-(4S*,5S*)-2,4,5-trihydroxy-3-methoxy-4-methoxycarbonyl-5-methyl-2-cyclopenten-1-one (2), and two new xanthone derivatives 4-chloro-1,5-dihydroxy-3-hydroxymethyl-6-methoxycarbonyl-xanthen-9-one (3) and 2,8-dimethoxy-1,6-dimethoxycarbonyl-xanthen-9-one (4), along with one known compound, fischexanthone (5), were isolated from the culture of the mangrove endophytic fungus Alternaria sp. R6. The structures of these compounds were elucidated by analysis of their MS (Mass), one and two dimensional NMR (nuclear magnetic resonance) spectroscopic data. Compounds 1 and 2 exhibited potent ABTS [2,2 '-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid)] scavenging activities with EC50 values of 8.19 +/- 0.15 and 16.09 +/- 0.01 mu M, respectively. In comparison to Triadimefon, compounds 2 and 3 exhibited inhibitory activities against Fusarium graminearum with minimal inhibitory concentration (MIC) values of 215.52 and 107.14 mu M, respectively, and compound 3 exhibited antifungal activity against Calletotrichum musae with MIC value of 214.29 mu M.

引用

页码：4492 / 4504

页数：13

共 23 条

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