A persistent bacterial Regiella transinfection in the bird cherry-oat aphid Rhopalosiphum padi increasing host fitness and decreasing plant virus transmission
文献类型： 外文期刊
作者： Yu, Wenjuan 1 ; Yang, Qiong 1 ; Gill, Alex 1 ; Chirgwin, Evatt 3 ; Gu, Xinyue 1 ; Joglekar, Chinmayee 1 ; Umina, Paul A. 1 ; Hoffmann, Ary A. 1 ;
作者机构： 1.Univ Melbourne, Sch BioSci, Pest & Environm Adaptat Res Grp, Bio21 Inst, Melbourne, Vic 3010, Australia
2.Inst Plant Protect, Sichuan Acad Agr Sci, Key Lab Integrated Management Pests Crops Southwes, Minist Agr, Chengdu, Peoples R China
3.Cesar Australia, Brunswick, Australia
关键词：
BYDV; fitness;
期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：3.8； 五年影响因子：4.3 ）
ISSN： 1526-498X
年卷期： 2025 年 81 卷 6 期
页码：
收录情况： SCI
摘要： BACKGROUNDThe bird cherry-oat aphid, Rhopalosiphum padi, is a major pest of agriculture due to its ability to directly damage crops and transmit plant viruses. As industries move away from chemical pest control, there is interest in exploring new options to suppress the impact of this pest.RESULTSWe describe the production of a transinfected line of R. padi carrying the bacterial endosymbiont, Regiella insecticola, originating from the green peach aphid, Myzus persicae. We show that Regiella increases the fitness of its novel host despite decreasing fitness in its native host. Regiella also shows a low level of horizontal transmission. Importantly the infection suppresses the ability of R. padi to transmit the barley yellow dwarf virus which damages wheat plants.CONCLUSIONOur results suggest this Regiella transinfection could be released to suppress virus transmission by aphids with its ability to persist and spread in situations where damage from the virus exceeds that from direct feeding by the aphid. (c) 2025 Society of Chemical Industry.
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