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Maize Iranian mosaic virus (family Rhabdoviridae) improves biological traits of its vector Laodelphax striatellus.
Archives of Virology ( IF 2.5 ) Pub Date : 2019-11-27 , DOI: 10.1007/s00705-019-04450-3
Pedram Moeini 1 , Alireza Afsharifar 1 , Keramatollah Izadpanah 1 , Seyed Ebrahim Sadeghi 2 , Sanford D Eigenbrode 3
Affiliation  

Plant viruses can alter the behavior or performance of their arthropod vectors, either indirectly (through effects of virus infection on the host plant) or directly (from virus acquisition by the vector). Given the diversity of plant viruses and their arthropod vectors, the effects for any specific system are not possible to predict. Here, we present experimental evidence that acquisition of maize Iranian mosaic virus (MIMV, genus Nucleorhabdovirus, family Rhabdoviridae) modifies the biological traits of its insect vector, the small brown planthopper (SBPH) Laodelphax striatellus. MIMV is an economically important virus of maize and several other grass species. It is transmitted by SBPHs in a persistent-propagative manner. We evaluated the effects of MIMV acquisition by SBPH on its life history when reared on healthy barley plants (Hordeum vulgare). We conclude that 1) MIMV acquisition by SBPHs increases female fecundity, duration of the nymph stage, adult longevity, and survival of SBPHs, (2) the mortality rate and female-to-male sex ratio are reduced in MIMV-infected planthoppers, and (3) MIMV infection increases the concentration of some biochemical components of the infected plants, including carbohydrates, some amino acids, and total protein, which might influence the life traits of its insect vector. The results indicate the potential of MIMV to improve the ecological fitness of its vector, SBPH, through direct or indirect effects, with the potential to increase the spread of the virus.

中文翻译:

玉米伊朗花叶病毒(Rhabdoviridae家族)改善了其媒介Laodelphax striatellus的生物学特性。

植物病毒可以间接(通过病毒感染宿主植物)或直接(通过载体获取病毒)改变节肢动物载体的行为或性能。考虑到植物病毒及其节肢动物载体的多样性,无法预测任何特定系统的影响。在这里,我们提供的实验证据表明,获得玉米伊朗花叶病毒(MIMV,核虫属病毒,鼠疫病毒科)改变了其昆虫载体小褐飞虱(SBPH)Laodelphax striatellus的生物学特性。MIMV是玉米和其他几种草种的重要经济病毒。它由SBPH持续传播。我们评估了在健康大麦植物(大麦)上饲养时,SBPH收购MIMV对其生活史的影响。我们得出的结论是:1)SBPH获得的MIMV可增加雌性繁殖力,若虫期的持续时间,成年寿命和SBPH的存活率;(2)MIMV感染的飞虱的死亡率和雌雄比例均降低,并且(3)MIMV感染会增加被感染植物的某些生化成分的浓度,包括碳水化合物,某些氨基酸和总蛋白质,这可能会影响其昆虫媒介的生命特征。结果表明,MIMV有可能通过直接或间接作用来改善其载体SBPH的生态适应性,并具有增加病毒传播的潜力。若虫的持续时间,成年寿命和SBPHs的存活率,(2)感染MIMV的飞虱的死亡率和雌雄比例均降低,并且(3)MIMV感染增加了飞虱的某些生化成分的浓度被感染的植物,包括碳水化合物,某些氨基酸和总蛋白质,可能会影响其昆虫媒介的生命特征。结果表明,MIMV有可能通过直接或间接作用来改善其载体SBPH的生态适应性,并具有增加病毒传播的潜力。若虫的持续时间,成年寿命和SBPHs的存活率,(2)感染MIMV的飞虱的死亡率和雌雄比例均降低,并且(3)MIMV感染增加了飞虱的某些生化成分的浓度被感染的植物,包括碳水化合物,某些氨基酸和总蛋白质,可能会影响其昆虫媒介的生命特征。结果表明,MIMV有可能通过直接或间接作用来改善其载体SBPH的生态适应性,并具有增加病毒传播的潜力。包括碳水化合物,某些氨基酸和总蛋白质,这可能会影响其昆虫媒介的生命特征。结果表明,MIMV有可能通过直接或间接作用来改善其载体SBPH的生态适应性,并具有增加病毒传播的潜力。包括碳水化合物,某些氨基酸和总蛋白质,这可能会影响其昆虫媒介的生命特征。结果表明,MIMV有可能通过直接或间接作用来改善其载体SBPH的生态适应性,并具有增加病毒传播的潜力。
更新日期:2019-11-01
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