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Research Article
Co-Transmission of Pepper huasteco yellow vein virus and Pepper golden mosaic virus in Chili Pepper by Bemisia tabaci (Genn.)

Gabriela Medina-Ramos, Rodolfo De La Torre-Almaraz, Rafael Bujanos-Muniz, Ramon G. Guevara-Gonzalez, Nancy Tierranegra-Garcia, Lorenzo Guevara-Olvera, Mario M. Gonzalez Chavira and Irineo Torres-Pacheco

Journal of Entomology, 2008, 5(3), 176-184.

Abstract

The capacity of simultaneously acquiring and transmitting Pepper huasteco yellow vein virus (PHYVV) and Pepper golden mosaic virus (PepGMV) geminiviruses by their whitefly vector (Bemisia tabaci Gennadius) to pepper plants Capsicum annuum was investigated. Information was obtained relating to the effect of factors involved in the virus-plant interaction such as whiteflies density by plant, Acquisition Access Periods (AAP), Inoculation Access Periods (IAP) and source of viral infected plants. Transmission trials indicated that a single virus-infested whitefly can transmit PHYVV and PepGMV to pepper plants. It was demonstrated that an AAP of 1 h was sufficient for acquisition of PHYVV and PepGMV by the vector. A minimum IAP of 48 h was required for the vector to transmit these geminiviruses to the plant. We also determined that one whitefly was capable of acquiring and transmitting both geminiviruses simultaneously. It appears that PHYVV helps in the dispersion of PepGMV inside the plant. Several possible explanations of our results are discussed.

ASCI-ID: 48-187

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