Secondary Metabolites with Agricultural Antagonistic Potential from Aspergillus sp. ITBBc1, a Coral-Associated Marine Fungus
文献类型： 外文期刊
作者： Abulaizi, Ailiman 1 ; Wang, Rong 2 ; Xiong, Zijun 2 ; Zhang, Shiqing 2 ; Li, Yuanchao 4 ; Ge, Huiming 1 ; Guo, Zhikai 2 ;
作者机构： 1.Nanjing Univ, Inst Funct Biomol, Chem & Biomed Innovat Ctr ChemBIC, Sch Life Sci,State Key Lab Pharmaceut Biotechnol, Nanjing 210023, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Trop Microbe Resources, Haikou 571101, Peoples R China
3.Hainan Inst Trop Agr Resources, Key Lab Biol & Genet Resources Trop Crops Hainan P, Haikou 571101, Peoples R China
4.Hainan Acad Ocean & Fisheries Sci, Hainan Prov Key Lab Trop Maricultural Technol, Haikou 571126, Peoples R China
关键词： Aspergillus sp.; marine fungi; secondary metabolites; phytotoxic activity
期刊名称：MARINE DRUGS （ 影响因子：4.9； 五年影响因子：5.2 ）
ISSN：
年卷期： 2024 年 22 卷 6 期
页码：
收录情况： SCI
摘要： A marine-derived fungal strain, Aspergillus sp. ITBBc1, was isolated from coral collected from the South China Sea in Hainan province. Intensive chemical investigation of the fermentation extract of this strain afforded four new secondary metabolites (1-4), named megastigmanones A-C and prenylterphenyllin H, along with four known compounds (5-8). Their structures were elucidated by extensive spectroscopic analysis including one-and two-dimensional (1D and 2D) NMR spectroscopy and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS). The modified Mosher's method was undertaken to determine the absolute configurations of new compounds. The phytotoxic activity test showed that compounds 6-8 exhibited significant antagonistic activity against the germination of Triticum aestivum L. and Oryza sativa L. seeds with a dose-dependent relationship.
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