alexa The coat protein is required for the elicitation of the Capsicum L2 gene-mediated resistance against the tobamoviruses.


Journal of Addiction Research & Therapy

Author(s): de la Cruz A, Lpez L, Tenllado F, DazRuz JR, Sanz AI,

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Abstract In Capsicum, the resistance against tobamoviruses conferred by the L2 gene is effective against all but one of the known tobamoviruses. Pepper mild mottle virus (PMMoV) is the only virus which escapes its action. To identify the viral factors affecting induction of the hypersensitive reaction (HR) mediated by the Capsicum spp. L2 resistance gene, we have constructed chimeric viral genomes between paprika mild mottle virus (PaMMV) (a virus able to induce the HR) and PMMoV. A hybrid virus with the PaMMV coat protein gene substituted in the PMMoV-S sequences was able to elicit the HR in Capsicum frutescens (L2L2) plants. These data indicate that the sequences that affect induction of the HR mediated by the L2 resistance gene reside in the coat protein gene. Furthermore, a mutant that codes for a truncated coat protein was able to systemically spread in these plants. Thus, the elicitation of the host response requires the coat protein and not the RNA. This article was published in Mol Plant Microbe Interact and referenced in Journal of Addiction Research & Therapy

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