Quinclorac-resistant Echinochloa spp. promoted growth and reproduction of Laodelphax striatellus (Hemiptera: Delphacidae) probably by providing more nutrients and stable environment
文献类型： 外文期刊
作者： Pi, Yimeng 1 ; Lu, Yanhui 2 ; Yang, Xia 3 ; Mo, Wujia 2 ; Li, Qiang 2 ; Lu, Zhongxian 2 ; Li, Yongfeng 3 ; Xu, Yipeng 1 ; Xu, Hongxing 2 ;
作者机构： 1.China Jiliang Univ, Coll Life Sci, Zhejiang Prov Key Lab Biometrol & Inspect & Quaran, Hangzhou 310018, Peoples R China
2.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Inst Agroprod Safety & Nutr, Hangzhou 310021, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Peoples R China
关键词： Herbicide resistance; Echinochloa spp.; Laodelphax striatellus; Ecological fitness
期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：4.0； 五年影响因子：4.5 ）
ISSN： 0048-3575
年卷期： 2024 年 205 卷
页码：
收录情况： SCI
摘要： Rice is an important agricultural crop that faces serious challenges from pathogens, pests, and weeds during growth stages. Meanwhile, these organisms would interact with each other to increase the level of destruction. The previous studies showed that barnyard grass (Echinochloa spp) could be used as a temporary host to increase infestation of small brown planthopper (SBPH, Laodelphax striatellus), which is one of the main polyphagous pests. Herbicides are widely used to control weeds that induce resistance development. However, little is known about the effects of increased weed resistance on insect species. In this study, we investigated the effect of quinclorac-resistant and sensitive biotypes of barnyard grass (Echinochloa crus-galli var. zelayensis; Echinochloa crus-pavonis Schult) and rice plants (Wuyujing 3) on the ecological fitness of SBPH and examined physiological indicators of plants and SBPH to explore the mechanism. Our results showed that the growth and reproduction of SBPH promoted significantly reared on quinclorac-resistant barnyard grass. From the perspectives of oxidative stress response, the activities of peroxidase (POD) increased and the activities of catalase (CAT), mixedfunctional oxidase (MFO), and carboxylesterase (CarE) decreased in SBPH reared on resistant barnyard grass. Combined with the increased amino acid contents (threonine, serine, methionine, and alanine) of resistant barnyard grass E. crus-pavonis, we speculate that quinclorac-resistant barnyard grass probably provides SBPH with a more suitable environment, thus increasing the risk of SBPH.
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