Biochemical mechanism of rice nitrogen promoting the resistance development of Nilaparvata lugens (Stal) to buprofezin

文献类型： 外文期刊

第一作者： Lu, Wencai

作者： Lu, Wencai;Liao, Dunxiu;Ma, Lianjie;Zhang, Hui;Niu, Ying;Wei, Peng

作者机构：

关键词： Nitrogen fertilizer; Nilaparvata lugens (Stal); Buprofezin; Esterase; Resistance development

期刊名称：JOURNAL OF ASIA-PACIFIC ENTOMOLOGY （ 影响因子：1.1； 五年影响因子：1.3 ）

ISSN： 1226-8615

年卷期： 2021 年 24 卷 3 期

页码：

收录情况： SCI

摘要： Overusing nitrogen fertilizer not only pollute farmlands, but also make Nilaparvata lugens (Stal) less susceptible to pesticides. The current study investigated the relationship between nitrogen fertilizer application and buprofenzin resistance in N. lugens in rice by conducting a series of field efficacy tests and laboratory bioassays. The results showed that the efficacy of buprofezin decreased significantly with high level of nitrogen fertilizer application, compared to those with low or no nitrogen application in rice fields. In the laboratory, the resistance ratios of N. lugens to buprofezin, assayed at three concentrations of nitrogen (0, 1.0, 3.0 mmol/L), have developed to 14.05-, 18.40- and 25.81-fold after 20 generations of resistance selection, respectively. Meanwhile, the resistance ratios of N. lugens without buprofezin treated were 1.00-, 3.30- and 4.67-fold after 20 generations as the nitrogen concentrations increased. The enzymatic assays revealed that the activities of P450 and esterase increased significantly after resistance selection with buprofezin and nitrogen, especially on the esterase activity in N. lugens under the condition of nitrogen treatment. These results suggested that nitrogen fertilizer application contributed to the resistance development in N. lugens to buprofezin by enhancing the activity of esterase.

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