中文摘要：  病毒侵染不仅可以改变寄主-植物的表型(形态和生理)特征，而且还可以以共生或对抗的方式改变其介体昆虫的行为, 促进它们传播到新的寄主上。病毒在其传播模式上有所不同，并且取决于介体成功传播病毒的行为。本研究调查了半持久型传播的番茄褪绿病毒（ToCV）和持续循环的番茄ToSRV病毒对介体MEAM1烟粉虱在番茄植株上的沉降选择性和捕捉行为的影响。在选择性试验中发现，介体在感染和未感染病毒植物上的沉降选择性明显受烟粉虱体内ToCV和ToSRV的存在或其先前接触感染植物的影响。
外文摘要：Virus infection may change not only the host-plant phenotypic (morphological and physiological) characteristics, but can also modify the behavior of their insect vector in a mutualistic or rather antagonistic manner, to promote their spread to new hosts. Viruses differ in their modes of transmission and depend on vector behavior for successful spread. Here, we investigated the effects of the semi-persistently transmitted Tomato chlorosis virus (ToCV, Crinivirus) and the persistent circulative Tomato severe rugose virus (ToSRV, Begomovirus) on alighting preferences and arrestment behavior of their whitefly vector Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) Middle East Asia Minor 1 (MEAM1) on tomato plants (Solanum lycopersicum L. cv. Santa Clara, Solanaceae). The vector alighting preferences between infected and uninfected plants in choice assays were apparently influenced by the presence of ToCV and ToSRV in the whiteflies or by their previous exposure to infected plants. The observed changes in vector behavior do not seem to benefit the spread of ToCV: non-viruliferous insects clearly preferred mock-inoculated plants, whereas ToCV-viruliferous insects landed on mock-inoculated and ToCV-infected plants, indicating a partial change in insect behavior - ToCV was able to directly affect the preference of its vector B.tabaci, but this change in insect behavior did not affect the virus spread because viruliferous insects landed on mock-inoculated and infected plants indistinctly. In contrast, ToSRV-viruliferous insects preferred to land on mock-inoculated plants, a behavior that increases the probability of spread to new host plants. In the arresting behavior assay, the majority of the insects remained on mock-inoculated plants when released on them. A greater number of insects moved toward mock-inoculated plants when initially released on ToCV- or ToSRV-infected plants, suggesting that these viruses may repel or reduce the nutritional quality of the host plants for B.tabaci MEAM1.
外文关键词：virus-plant-vector interactions; host-plant selection; alighting preference; arresting behavior; Begomovirus; Crinivirus; Hemiptera; Aleyrodidae; tomato; Solanum lycopersicum; Solanaceae
作者：Prado Maluta, Nathalie Kristine; Fereres, Alberto; Spotti Lopes, Joao Roberto
作者单位：巴西圣保罗大学
期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
期刊影响因子：1.162
出版年份：2017
出版刊次：12
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