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Bacterial plant pathogens affect the locomotor behavior of the insect vector:a case study of Citrus volkameriana-Triozae erytreae-Candidatus Liberibacter asiaticus system

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Insect Science 2024年第3期31卷 901-910页

作者： arnaud ameline Alain Karkach Thomas Denoirjean Martial Grondin Florencia Molinari Patrick Turpin Helene Delatte Bernard Reynaud UMR CNRS 7058 EDYSAN(Ecologie et Dynamique des Systemes Anthropises) Universite de Picardie Jules VerneAmiensCedexFrance UMR PVBMT(Peuplements végétaux et bioagresseurs en milieu tropical) Universitéde la RéunionSaint PierreLa RéunionFrance

Plant pathogens can alter the behavior of their insect vectors as well as their survival and *** African psyllid,Trioza erytreae,is one of the vectors of Huanglongbing,a citrus disease caused mainly by"Candidatus Liberibacter asiaticus"(CLas).The purpose of this study was to characterize the effects of CLas on the psyllid,*** using Citrus volkamerina plants as the study *** study focused more specifically on the CLas effects prior to and after its acquisition by the psyllid *** results did not support the hypothesis that CLas effects psyllid probing behavior prior to acquisition;few differences were observed between uninfected *** feeding on CLas-infected versus control *** the other hand,compared to psyllids that had completed their development on control plants,the ones that had completed their development on a CLas-infected plant exhibited changes in their behavior(greater velocity),physiology(smaller mass)and biochemistry(lower water and lipid content).Altogether,our results confirm the existence of a marked postacquisition effect on the vector locomotor behavior and a minor preacquisition effect of CLas on the vector behavior,which can be partially explained by physiological and biochemical changes.

关键词： electrical penetration graph Huanglongbing locomotory behavior lipid biomass probing behavior vector manipulation

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Plant infection by two different viruses induce contrasting changes of vectors fitness and behavior

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Insect Science 2019年第1期26卷 86-96页

作者： Quentin Chesnais Aude Couty Maryline Uzest Veronique Brault arnaud ameline FRE CNRS 3498 EDYSAN (Ecologie et Dynamique des Systemes Anthropises) Universite de Picardie Jules Veme33 rue St Leu80039 Amiens CedexFrance INRA UMR 0385 BGPICIRAD-INRA-Montpellier SupAgroTA A541KCampus International de Baillarguet34394 Montpellier Cedex 5France UMR 1131 SVQV INRA-UDS28rue de Herrlisheim68021 Colmar CedexFrance

Insect-vectored plant viruses can induce changes in plant phenotypes,thus influencing plant-vector interactions in a way that may promote their dispersal according to their mode of transmission (i.e.,circulative ***).This indirect vector manipulation requires host-virus-vector coevolution and would thus be effective solely in very specific plant-virus-vector species *** studies suggest this manipulation may depend on multiple factors relative to various intrinsic characteristics of vectors such as transmission *** anintegrative study,we tested the effects of infection of the Brassicaceae Camelina sativa with the noncirculative Cauliflower mosaic virus (CaMV)or the circulative Turnip yellows virus (TuYV)on the host-plant colonization of two aphid species differing in their virus transmission efficiency:the polyphagous Myzus persicae,efficient vector of both viruses,and the Brassicaceae specialist Brevicoryne brassicae,poor vector of TuYV and efficient vector of *** confirmed the important role of virus mode of transmission as plant-mediated effects of CaMV on the two aphid species induced negative alterations of feeding behavior (i.e.,decreased phloem sap ingestion)and performance that were both conducive for virus fitness by promoting dispersion after a rapid *** addition,virus transmission efficiency may also play a role in vector manipulation by viruses as only the responses of the efficient vector to plant-mediated effects of TuYV,that is,enhanced feeding behavior and performances,were favorable to their acquisition and further ***,this work demonstrated that vector transmission efficiency also has to be considered when studying the mechanisms underlying vector manipulation by *** results also re- inforce the idea that vector manipulation requires coevolution between plant,virus and vector.

关键词： aphid vector Cauliflower mosaic virus electrical penetration graph host-plant selection life history traits Turnip yellows virus

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矿物油处理对马铃薯长管蚜定向和取食行为的影响(英文)

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昆虫学报 2009年第6期52卷 617-623页

作者： arnaud ameline Aude COUTY Maria MARTOUB Philippe GIORDANENGO Unite de Recherche EA3900-BioPI Biologie desp lantes et controle des Insectes ravageurs Laboratoire de Biologie des Entomophages Universite de Picardie Jules Verne 33 rue St Leu 80039 Amiens cedex France

大田和实验室研究均表明矿物油的施用可有效降低蚜虫对非持久性病毒的传播。我们分别于矿物油喷施马铃薯植株24h和7d后,调查其对马铃薯长管蚜Macrosiphum euphorbiae行为的影响;采用暗室生测法调查了蚜虫对处理的植物挥发性化合物的反应... 详细信息

大田和实验室研究均表明矿物油的施用可有效降低蚜虫对非持久性病毒的传播。我们分别于矿物油喷施马铃薯植株24h和7d后,调查其对马铃薯长管蚜Macrosiphum euphorbiae行为的影响;采用暗室生测法调查了蚜虫对处理的植物挥发性化合物的反应;采用刺探电位技术(EPG)评价了矿物油处理对蚜虫取食行为的影响。结果表明:矿物油处理导致植物对寄主的引诱作用失效,这种效果至少持续24h。矿物油处理马铃薯植株24h和7d后,蚜虫对处理植株的取食行为发生改变。开始记录至第1次刺探所需时间降低,但只在处理7d后显著降低,提示矿物油处理有助于蚜虫口针的穿刺。然而,流涎阶段以及韧皮部汁液吸食阶段(摄食阶段)显著缩短。本研究中观察到的蚜虫行为的改变不能充分解释施用矿物油的大田中为什么出现7d的保护作用,因此可能还存在其他的机制。

关键词：马铃薯长管蚜矿物油刺探电位技术(EPG) 寄主植物选择嗅觉

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