首页|Egg-associated secretions from the brown planthopper(Nilaparvata lugens)activate rice immune responses

Egg-associated secretions from the brown planthopper(Nilaparvata lugens)activate rice immune responses

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The brown planthopper(BPH,Nilaparvata lugens)is a notorious sap-sucking insect pest that damages rice(Oryza sativa)plants throughout Asia.During BPH feed-ing,saliva enters rice plant tissues,whereas during oviposition egg-associated secretions(EAS)are deposited in damaged plant tissue.Dynamic changes in rice to planthopper sali-vary effectors have been widely reported.However,the effects of E AS from planthopper on rice immunity remains largely unexplored.In this study,we found that both infesta-tion of rice by gravid BPH female adults and treatment with the EAS elicited a strong and rapid accumulation of jasmonic acid(JA),JA-isoleucine,and hydrogen peroxide in rice.EAS enhanced plant defenses not only in rice but also in tobacco,and these impaired the performance of BPH on rice,as well as the performance of aphids and whiteflies on tobacco.High-throughput proteome sequencing of EAS led to 110 proteins being identi-fied and 53 proteins with 2 or more unique peptides being detected.Some proteins from BPH EAS were also found in the salivary proteome from herbivores,suggesting potential evolutionary conservation of effector functions across feeding and oviposition;however,others were only identified in EAS,and these are likely specifically related to oviposition.These findings point to novel proteins affecting interactions between planthoppers and rice during oviposition,providing an additional source of information for effector studies.

egg-associated secretionNilaparvata lugensovipositionplant immunityproteome

Jing Li、Shuai Li、Xinyang Tan、Zhichang Zhao、Lei Jiang、Ary A.Hoffmann、Jichao Fang、Rui Ji

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Institute of Plant Protection,Jiangsu Academy of Agricultural Sciences,Jiangsu Key Laboratory for Food and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology,Nanjing,China

College of Plant Protection,Nanjing Agricultural University,Nanjing,China

School of Plant Protection,Anhui Agricultural University,Hefei,China

School of BioSciences,Bio21 Institute,University of Melbourne,Parkville,VIC,Australia

Jiangsu Collaborative Innovation Center of Regional Modem Agriculture & Environmental Protection,Huaiyin Normal University,Huaian,Jiangsu Province,China

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Jiangsu Agricultural Science and Technology Independent Innovation FundNational Natural Science Foundation of ChinaNational Key Basic Research Program of China

CX223018323023202021YFD1401100

2024

10.1111/1744-7917.13303

中国昆虫科学(英文版)
中国昆虫学会 中科院动物所

中国昆虫科学(英文版)

CSTPCD
影响因子：0.484
ISSN：1672-9609
年,卷(期)：2024.31(4)