Nematicidal Activity of Oxalic and Citric Acids Isolated from a Nematicidal Fungus, Aspergillus nige

来源 :中国植物病理学会2014年学术年会 | 被引量 : 0次 | 上传用户：wtuye262626

【摘要】

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【作者】

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Liu Ting Dong Dan Zhang Taotao Wu Huiling Liu Dewen Lu Caige Zhang Dianpeng Qiu Jiyan Liu Weicheng

【机构】

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Institute of Plant and Enviromental Protection, Beijing Academy of Agricultural and Forestry Science

【出处】

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中国植物病理学会2014年学术年会

【发表日期】

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2014年3期

【关键词】

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Aspergillus niger Fungus Nematode median lethal concentration

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　　Aspergillus niger, a genus of filamentous fungus found in soil, was investigated for production of nematicidal compounds.To this end, A.niger isolate y-61 was grown in Czapek-Dox medium,and culture broth filtrate was tested for activity against the nematodes Meloidogyne incognita (root-knot nematode).Oxalic and citric acids, were isolated based on bioassay-guided fractionation of culture filtrates against M.incognita.The median lethal concentrations (LC50) at 24h were 74.2mg/L and 9024.3mg/L against M.incognita, respectively.

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Nematicidal Activity of Oxalic and Citric Acids Isolated from a Nematicidal Fungus, Aspergillus nige

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