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在洋三,Thrips tabaci中的P450介导的dinotefuran耐药性
Akiya Jouraku1, Koichi Hirata2, Seigo Kuwazaki1
1Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki 305-8634, Japan.
Pesticide biochemistry and physiology
|April 22, 2025
概括
洋三 (Thrips tabaci) 对丁诺福兰的耐药性与细胞染色体P450基因TtCYP3652A1.1.有关. 这种酶代谢杀虫剂,有助于排毒和耐药群体的生存.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 洋三 (Thrips tabaci) 的抗昆虫剂耐药性在日本是一个日益严重的问题.
- 细胞染色体P450 (CYP) 酶对于代谢异生菌,包括杀虫剂至关重要,并与昆虫耐药性有关.
- 涉及Trips tabaci抗昆虫剂耐药性的特定CYP在很大程度上仍未确定.
研究的目的:
- 在Thrips tabaci中全面识别CYP基因.
- 为了确定特定的CYP酶负责dinotefuran耐药性洋三.
主要方法:
- 基因组测序和基因预测的thelytokous烟草 (ANO菌株).
- 手动化以识别CYP基因,专注于CYP3家族.
- 对抗丁诺富兰和敏感菌株的RNA测序,以确定差异表达的基因.
- 实验室CYP代谢测试使用昆虫细胞来测试候选CYP基因对丁诺富兰的活性.
主要成果:
- 在Thrips tabaci中发现了127个CYP基因,其中38个属于CYP3家族.
- 在抗丁诺富兰菌株中,TtCYP3652A1,一种特异于的CYP,被显著上调.
- 实验室试验表明,TtCYP3652A1显著代谢了丁诺富兰,而其他测试的CYP6基因没有.
- 在已知的类毒素位基因中没有发现任何突变.
结论:
- TtCYP3652A1被确定为一个关键的酶,有助于dinotefuran排毒和抗性洋三.
- 这一发现为了解和管理Thrips tabaci.中的抗昆虫剂耐药性的分子基础.
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