您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Odorant-Binding Protein 1 Plays a Crucial Role in the Olfactory Response of Bemisia tabaci to R-Curcumene

文献类型： 外文期刊

作者： Zhan, Haixia 1 ; Dewer, Youssef 2 ; Zhang, Jinping 3 ; Tian, Jiahui 1 ; Li, Du 1 ; Qu, Cheng 1 ; Yang, Zhen 4 ; Li, Fengq 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing Key Lab Environm Friendly Management Frui, Beijing 100097, Peoples R China

2.Agr Res Ctr, Phytotoxic Res Dept, Cent Agr Pesticide Lab, Giza 12618, Egypt

3.Chinese Acad Agr Sci, Inst Plant Protect, MARA CABI Joint Lab Biosafety, Beijing 100193, Peoples R China

4.Tianjin Univ Tradit Chinese Med, Tianjin 300000, Peoples R China

关键词： Bemisia tabaci; Solanum habrochaites; odorant-binding proteins; competitive fluorescence binding assay; site-directed mutagenesis; RNA interference

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2021 年 69 卷 43 期

页码：

收录情况： SCI

摘要： The cultivated tomato Solanum lycopersicum suffered a severe attack by the whitefly Bemisia tabaci (Gennadius), causing damage to leaves by feeding as well as transmitting the tomato yellow leaf curl virus (TYLCV), while the wild tomato S. habrochaites is considerably less appealing to this insect species. It is reported that B. tabaci shows innate avoidance to R-curcumene, which is produced naturally by S. habrochaites. However, the mechanisms involved in the avoidance behavior of B. tabaci in response to this chiral compound are still unclear yet. In this study, the functional and binding characterization of odorant-binding protein 1 of B. tabaci (BtOBP1) were examined in vivo and in vitro against R-curcumene. The obtained results showed that BtOBP1 exhibits specific binding activity to R-curcumene, which acts as repellents to B. tabaci. By using a fluorescence-based binding assay, the difference of binding-affinity for R-curcumene between wild type BtOBP1 and the mutant BtOBP1 to R-curcumene was performed, which resulted in a single amino acid mutation (ASN108 > SER); moreover, BtOBP1-N108 displays significantly decreased binding affinities to R-curcumene. Most interestingly, a knock-down experiment with the BtOBP1 showed that the whitefly responses to R-curcumene are impaired. This study illustrated that BtOBP I is a crucial protein involved in the perception and discrimination of R-curcumene. Our findings may provide an excellent chance of finding a suitable antagonist of eco-friendly features that can block the perception of chemosensory signals in insects, preventing behaviors like food-finding.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台