Abstract

GAMBOA-TEC, Naivy et al. Anatomic alterations and hyperplasia induced by Euphorbia mosaic virus Yucatan Peninsula isolate at the meshophyll. Rev. mex. fitopatol [online]. 2018, vol.36, n.2, pp.287-297. ISSN 2007-8080.  https://doi.org/10.18781/r.mex.fit.1712-2.

Euphorbia mosaic virus isolated from the Yucatan Peninsula is a bipartite begomovirus with a wide range of experimental hosts, including species of economic importance, such as bean, chilli and tomato, among others. This virus produced severe symptoms on Nicotiana benthamiana leaves, leaf blade deformations, loss of tissue and cell identity, as well as changes in the mesophyll structure. Unlike other bipartite begomoviruses, EuMV-YP induced cell proliferation at the mesophyll; it also positively regulated the expression of cycA1, cycA2 and cdkB2.2, genes involved in the G2/M transition of the mitotic cell cycle, and localized at the mesophyll. This is the first example of a bipartite begomovirus capable of inducing cell proliferation.

Keywords : geminivirus; cell cycle.

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