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Impact of deltamethrin on the endophytic fungal community of a Chinese cabbage,Brassica chinensis
Authors:Shengliang Zhou  Hui Qiu  Chengcheng Feng  Yanhua Guo  Xiaoning Wang
Institution:1. Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, People's Republic of China;2. College of Life Sciences, Jiangsu Normal University, Xuzhou, People's Republic of China
Abstract:Endophytic fungi, being closely associated with their host plants, are an important part of the ecosystem and food web. In modern agriculture, pesticides are widely used. The impact of pesticides on the endophytic fungal community of crops remains poorly understood. In this paper, Chinese cabbage Brassica chinensis, a popular leafy vegetable consumed worldwide, was selected for evaluating the potential effects of a pesticide, deltamethrin, on the endophytic fungal community. By culture method, 195 endophytic fungal strains classified into 39 taxa and 186 strains classified into 30 taxa, respectively, were isolated from the pesticide-treated and untreated B. chinensis samples. Sirodesmium spp. were the predominant endophytic fungi from both samples. The colonisation rates of endophytic fungi of the treated and the untreated samples were not significantly different, as determined by one-way analysis of variance (p?>?.05). The Shannon diversity indexes (H′) were close, being 2.216 and 2.152, respectively. However, the endophyte compositions of the treated and the untreated samples were significantly different (p?B. chinensis.
Keywords:Endophytic fungi  pesticide  Brassica chinensis  diversity  endophytic community
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