Larvicidal spirobisnaphthalenes from the endophytic fungus Berkleasmium sp against Aedes albopictus

被引：22

作者：

Tian, Jin ^{[1
]}

Liu, Xin Chao ^{[2
]}

Liu, Zhi Long ^{[2
]}

Lai, Daowan ^{[1
]}

Zhou, Ligang ^{[1
]}

机构：

[1] China Agr Univ, Coll Agron & Biotechnol, Dept Plant Pathol, MOA Key Lab Plant Pathol, Beijing 100193, Peoples R China

[2] China Agr Univ, Coll Agron & Biotechnol, Dept Entomol, Beijing 100094, Peoples R China

来源：

PEST MANAGEMENT SCIENCE | 2016年 / 72卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Berkleasmium sp; mosquito; Aedes albopictus; larvicidal activity; spirobisnaphthalene; endophytic fungus; DIEPOXIN ZETA PRODUCTION; LIQUID CULTURE; ANTIOXIDANT ACTIVITIES; SP DZF12; ENHANCEMENT; HOST; POLYSACCHARIDES; METABOLITES; VECTOR; FRUITS;

D O I：

10.1002/ps.4075

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

BACKGROUNDIn our screening programme for new agrochemicals from endophytic fungi, the ethyl acetate extract of an endophytic Berkleasmium sp. isolated from the medicinal plant Dioscorea zingiberensis was found to possess strong larvicidal activity against the Asian tiger mosquito, Aedes albopictus. RESULTSBioassay-guided fractionation of the fungal extract has led to the isolation of seven spirobisnaphthalenes, including palmarumycins C-8, C-12, C-15 and B-6 and diepoxins , and . Among them, palmarumycins C-8 and B-6 showed strong larvicidal activity against the fourth-instar larvae of A. albopictus, with LC50 values of 8.83 and 11.51 mu g mL(-1) respectively. Interestingly, only spirobisnaphthalenes with a chlorine substituent possessed strong larvicidal activity. CONCLUSIONThe results indicated that the spirobisnaphthalenes derived from the endophytic fungus Berkleasmium sp. could be promising leads for the development of new larvicides against A. albopictus. (c) 2015 Society of Chemical Industry

引用

页码：961 / 965

页数：5

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