Tomato Yellow Leaf Curl Virus Benefits Population Growth of the Q Biotype of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae)
Tomato Yellow Leaf Curl Virus Benefits Population Growth of the Q Biotype of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae)
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DOI：
10.1007/s13744-014-0223-z
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发表时间：
2014-08-01
影响因子：
1.8
通讯作者：
Fereres, A.
中科院分区：
文献类型：
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作者：
Maluta, N. K. P.;Garzo, E.;Fereres, A.
植物病毒可以直接影响其昆虫媒介，并通过其共同的宿主植物间接地以互利或相反的拮抗方式改变其行为和表现。研究最多的菜豆病毒之一，番茄黄化曲叶病毒（TYLCV），也可能有助于其载体烟粉虱（Gennadius）的扩展。考虑到疾病及其主要媒介的可能扩展，我们研究了该病毒的地中海分离株（TYLCV-IL）对B Q生物型生物学性能的直接和间接影响。烟粉虱以下参数进行了检查：发育时间和生活力，性比，繁殖力，生育力和寿命。结果从积极到中性，这取决于参数和研究的效果。TYLCV可促进B若虫发育，延长雄虫寿命。当含毒昆虫在TYLCV免疫的茄子上发育时，烟粉虱（直接影响）。TYLCV感染植株对B的繁殖力有间接的正效应。烟粉虱在感染病毒的番茄植株上产卵的数量比在未感染的番茄植株上多。我们的研究结果表明，TYLCV增强了其粉虱载体的种群增长，并且病毒及其载体B的MED种具有快速扩增的高风险。烟草-当两种药剂相互作用时进入新的区域。
Plant viruses can directly influence their insect vectors, and indirectly through their shared host plant, altering their behavior and performance in a mutualistic or rather antagonistic manner. One of the most studied begomovirus, Tomato yellow leaf curl virus (TYLCV), may also facilitate the expansion of its vector, the whitefly Bemisia tabaci (Gennadius). Considering the likely expansion of the disease and its major vector, we studied the direct and the indirect effects of a Mediterranean isolate of this virus (TYLCV-IL) on the biological performance of the Q biotype of B. tabaci. The following parameters were examined: development time and viability of nymphs, sex ratio, fecundity, and fertility and longevity. The results varied from positive to neutral depending on the parameter and the effect studied. TYLCV accelerated nymphal developmental and increased male longevity of B. tabaci when viruliferous insects developed on TYLCV-immune eggplants (direct effects). An indirect, positive effect of TYLCV-infected plants was observed on fecundity of B. tabaci, which laid more eggs on virus-infected than on noninfected tomato plants. Our results show that TYLCV enhances the population increase of its whitefly vector and that there is a high risk of rapid expansion of both the virus and its vector-the MED species of B. tabaci-into new areas when both agents interact together.