Cyclodepsipeptides and other O-containing heterocyclic metabolites from Beauveria felina EN-135, a marine-derived entomopathogenic fungus.

Cyclodepsipeptides and other O-containing heterocyclic metabolites from Beauveria felina EN-135, a marine-derived entomopathogenic fungus.
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来自猫白僵菌 EN-135(一种海洋来源的昆虫病原真菌)的环缩酚肽和其他含 O 杂环代谢物。

DOI:
10.3390/md12052816
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发表时间:
2014-05-13
期刊:
影响因子:
5.4
通讯作者:
Wang BG
Wang BG
中科院分区:
医学2区
文献类型:
--
作者:
Du FY;Li XM;Zhang P;Li CS;Wang BG

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对从海洋苔藓虫中分离的昆虫病原真菌Beauveria felina EN-135的培养物提取物进行生物测定指导的分级分离,导致分离出一种新的环缩酚肽,异-Isariin D(1);两种新的含O杂环化合物,我们命名为猫酮A和B(2和3);以及四种已知的环缩酚肽(4-7)。通过光谱分析进行了结构鉴定,并分别使用单晶X-射线衍射和CD确定了1和2的绝对构型。所有分离的化合物进行了评价的抗微生物活性和盐水虾(卤虫)致死。
Bioassay-guided fractionation of a culture extract of Beauveria felina EN-135, an entomopathogenic fungus isolated from a marine bryozoan, led to the isolation of a new cyclodepsipeptide, iso-isariin D (1); two new O-containing heterocyclic compounds that we have named felinones A and B (2 and 3); and four known cyclodepsipeptides (4–7). The structures were elucidated via spectroscopic analysis, and the absolute configurations of 1 and 2 were determined using single-crystal X-ray diffraction and CD, respectively. All isolated compounds were evaluated for antimicrobial activity and brine-shrimp (Artemia salina) lethality.
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