植物病毒的成功侵染和传播对白背飞虱取食行为影响的EPG分析

EPG Recordings Reveal Differential Feeding Behaviors in Sogatella furcifera in Response to Plant Virus Infection and Transmission Success

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中文摘要:

      植物病毒主要通过昆虫介体传播,病毒侵染可能会影响介体的取食行为。通过EPG发现,南方水稻黑条矮缩病毒(SRBSDV)侵染白背飞虱(WBPH)和水稻后均会改变介体的取食行为。人工接种或后天获得SRBSDV的白背飞虱与没有感染过SRBSDV的白背飞虱在取食行为上存在差异。因为,带毒介体在未感染病毒的寄主上分泌较多的唾液有助于接种病毒,而未带毒介体在感染了病毒的寄主植株上取食较多的汁液有助于获取病毒,所以,昆虫介体这些取食行为的改变可能使其对SRBSDV成功传播及扩散具有自适应性。


外文摘要:

  Plant viruses are primarily transmitted by insect vectors and virus infection may influence on the vectors' feeding behaviors. Using an electrical penetration graph, we detected that infection with the Southern rice black-streaked dwarf virus (SRBSDV) in the white-backed planthopper (WBPH) and in rice plants both altered the vector's feeding behavior. When viruliferous WBPH (carrying SRBSDV) were fed on uninfected plants, they spent more time in salivation and phloem sap ingestion than non-viruliferous insects. In comparison with uninfected plants, infected plants showed an arrestant effect on non-viruliferous WBPH for phloem sap ingestion. Differential feeding behaviors were also detected between the WBPH that inoculated or acquired SRBSDV and those that failed to. The WBPH that inoculated SRBSDV exhibited more probing bouts, salivation events and phloem sap ingestion events and longer salivation than those that failed to. The WBPH that acquired SRBSDV were quicker to reach phloem and spent more time in phloem sap ingestion than those that failed to. These behavior alterations in the vector may have adaptive advantages for SRBSDV transmission and spread success because greater salivation by viruliferous vectors on uninfected hosts will promote virus inoculation, whereas more sap ingestion by non-viruliferous vectors on infected hosts will promote virus acquisition.


作者:Lei, Wenbin;Li, Pei;Han, Yongqiang;等
作者单位:中国农业科学院
期刊名称:Scientific Reports
期刊影响因子:5.228
出版年份:2016
出版刊次:8
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  1. 编译服务:植物病毒学
  2. 编译者:任妮
  3. 编译时间:2016-11-22