Posgrado en Fitosanidad-Entomología y Acarología, Colegio de Postgraduados, Campus Montecillo, Km 36.5 Carretera México-Texcoco, Montecillo, Estado de México, México.
Posgrado en Fitosanidad-Fitopatología, Colegio de Postgraduados, Campus Montecillo, Km 36.5 Carretera México-Texcoco, Montecillo, Estado de México, México.
J Econ Entomol. 2019 Dec 9;112(6):2569-2576. doi: 10.1093/jee/toz201.
Transmission of the virus, Citrus leprosis virus C (CiLV-C) (Cilevirus) by Brevipalpus yothersi Baker, on different citrus species was evaluated under greenhouse conditions. First, the relationship between acquisition access periods (AAPs; 1, 12, 24, 36, and 48 h) and virus concentration in mites was determined. Second, the ability of B. yothersi to transmit CiLV-C to orange, mandarin, grapefruit, and lime trees was measured. We then assessed the establishment of mites on the different citrus species as measured by their population increase on each species. We found no relationship between AAPs and virus load in mites. The virus was found in all mites tested but there was no difference in virus quantities among the treatments. We selected an AAP of 24 h for the transmission experiment. Brevipalpus yothersi transmitted the virus to all citrus species evaluated, but susceptibility was different. The number of infected leaves was greater on orange and mandarin compared with grapefruit and lime. Furthermore, populations of B. yothersi successfully established on orange and mandarin, but not on grapefruit and lime trees. The implications of our results in the virus-mite-citrus plant relationship are discussed.
在温室条件下，评估了 Brevipalpus yothersi Baker 对不同柑橘属物种传播病毒、柑橘衰退病毒 C（CiLV-C）（Cilevirus）的情况。首先，确定了获得访问期（AAP；1、12、24、36 和 48 小时）与螨虫体内病毒浓度之间的关系。其次，测量了 B. yothersi 将 CiLV-C 传播给橙、橘、葡萄柚和酸橙树的能力。然后，我们评估了螨虫在不同柑橘属物种上的定植能力，通过在每个物种上的种群增加来衡量。我们发现 AAP 与螨虫体内的病毒负荷之间没有关系。在所有测试的螨虫中都发现了病毒，但处理之间的病毒数量没有差异。我们选择 24 小时的 AAP 进行传播实验。Brevipalpus yothersi 将病毒传播到所有评估的柑橘属物种，但易感性不同。与葡萄柚和酸橙相比，感染叶片的数量在橙和橘树上更多。此外，B. yothersi 的种群在橙和橘树上成功定植，但在葡萄柚和酸橙树上没有成功定植。我们的结果在病毒-螨虫-柑橘植物关系中的意义将进行讨论。
