Mirids secrete a TOPLESS targeting protein to enhance JA-mediated defense and gossypol accumulation for antagonizing cotton bollworms on cotton plants

扫码查看

原文链接

万方数据
维普

外文摘要：Most coexisting insect species exhibit stunted growth compared to individual species on plants.This phenomenon reflects an interspecific antagonism drawing extensive attention,while the underlying mecha-nisms remain largely uncharacterized.Mirids(Apolygus lucorum)and cotton bollworms(Helicoverpa armigera)are two common cotton pests.We identified a secretory protein,ASP1,from the oral secretion of mirids,found in the nucleus of mirid-infested cotton leaves.ASP1 specifically targets the transcriptional co-repressor TOPLESS(TPL)and inhibits NINJA-mediated recruitment of TPL,promoting plant defense response and gossypol accumulation in cotton glands.ASP1-enhanced defense inhibits the growth of cotton bollworms on cotton plants,while having limited impact on mirids.The mesophyll-feeding characteristic al-lows mirids to avoid most cotton glands,invalidating cotton defense.Our investigation reveals the molecular mechanism by which mirids employ cotton defense to selectively inhibit the feeding of cotton bollworms.

外文关键词：

oral secretionplant defenseco-repressor TOPLESSmiridsApolygus lucorumcotton bollwormsHelicoverpa armigera

作者：

Yu-Pei Mu、Dian-Yang Chen、Yu-Jie Liu、Ming-Yu Zhu、Xian Zhang、Yin Tang、Jia-Ling Lin、Mu-Yang Wang、Xiao-Xia Shangguan、Xiao-Ya Chen、Chengshu Wang、Ying-Bo Mao

展开 >

作者单位：

CAS Key Laboratory of Insect Developmental and Evolutionary Biology,CAS Center for Excellence in Molecular Plant Sciences,Shanghai Institute of Plant Physiology and Ecology,University of CAS,Chinese Academy of Sciences,Shanghai 200032,China

National Key Laboratory of Plant Molecular Genetics,CAS Center for Excellence in Molecular Plant Sciences,Shanghai Institute of Plant Physiology and Ecology,University of CAS,Chinese Academy of Sciences,Shanghai 200032,China

Institute of Cotton Research,Shanxi Agricultural University,Yuncheng 044000,China

出版年：

2024

DOI：

10.1016/j.molp.2024.09.008

分子植物(英文版)

中科院上海生命科学研究院植物生理生态所　中国植物生理学会

分子植物(英文版)

CSTPCD

影响因子：0.659

ISSN：1674-2052

年,卷(期)：2024.17(11)