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New Fusaric Acid Derivatives from the Endophytic Fungus Fusarium oxysporum and Their Phytotoxicity to Barley Leaves

文献类型： 外文期刊

作者： Liu, Shuai 1 ; Da, Haofu 2 ; Orfali, Raha S. 3 ; Lin, Wenhan 4 ; Liu, Zhen 1 ; Proksch, Peter 1 ;

作者机构： 1.Univ Dusseldorf, Inst Pharmaceut Biol & Biotechnol, Univ Str 1, D-40225 Dusseldorf, Germany

2.Chinese Acad Trop Agr Sci, Inst Trop Bioscience & Biotechnol, Minist Agr, Key Lab Biol & Genet Resources Trop Crops, Haikou 571101, Peoples R China

3.King Saud Univ, Fac Pharm, Dept Pharmacognosy, Riyadh, Saudi Arabia

4.Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100191, Peoples R China

关键词： Fusarium oxysporum;fusaricates A-G;structural elucidation;phytotoxicity

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

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收录情况： SCI

摘要： Chemical investigation of the endophytic fungus Fusarium oxysporum isolated from fruits of Drepanocarpus lunatus afforded eight new fusaric acid derivatives, fusaricates A-G, 1-7, and 10-hydroxy-11-chlorofusaric acid, 8, along with four known compounds. Their structures were elucidated by one- and two-dimensional NMR as well as MS data and by comparison with the literature. The absolute configurations of fusaricates 3-5, were determined using chiral GC-MS. Fusaricates A-G, 1-7, represent the first examples of fusaric acid linked to a polyalcohol moiety via an ester bond. All isolated fusaric acid derivatives 1-8 showed significant phytotoxicity to leaves of barley.

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