Título

Physical characteristics of the leaves and latex of papaya plants infected with the Papaya meleira virus

Autor

DAISY DE LA CARIDAD PEREZ BRITO

Colaborador

ANUAR AHMED MAGAÑA ALVAREZ (Colaborador)

RAUL TAPIA TUSSELL (Colaborador)

José Aires Ventura (Colaborador)

INOCENCIO HIGUERA CIAPARA (Colaborador)

Nivel de Acceso

Acceso Abierto

Referencia de datos

doi: DOI: 10.3390/ijms17040574

Resumen o descripción

Sticky disease, which is caused by Papaya meleira virus (PMeV), is a significant papaya disease in Brazil and Mexico, where it has caused severe economic losses, and it seems to have spread to Central and South America. Studies assessing the pathogen-host interaction at the nano-histological level are needed to better understand the mechanisms that underlie natural resistance. In this study, the topography and mechanical properties of the leaf midribs and latex of healthy and PMeV-infected papaya plants were observed by atomic force microscopy and scanning electron microscopy. Healthy plants displayed a smooth surface with practically no roughness of the leaf midribs and the latex and a higher adhesion force than infected plants. PMeV promotes changes in the leaf midribs and latex, making them more fragile and susceptible to breakage. These changes, which are associated with increased water uptake and internal pressure in laticifers, causes cell disruption that leads to spontaneous exudation of the latex and facilitates the spread of PMeV to other laticifers. These results provide new insights into the papaya-PMeV interaction that could be helpful for controlling papaya sticky disease.

Fecha de publicación

abril de 2016

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Formato

application/pdf

Fuente

International Journal of Molecular Sciences. 17(4), 574, 2016

Idioma

Inglés

Relación

&

Fernandes, A. A. R. (2016). Physical characteristics of the leaves and latex of papaya plants infected with the Papaya meleira virus. International journal of molecular sciences, 17(4), 574.

Sugerencia de citación

Magaña-Álvarez, A., Vencioneck Dutra, J. C., Carneiro, T., Pérez-Brito, D., Tapia-Tussell, R., Ventura, J. A., ...

Repositorio Orígen

Repositorio Institucional CICY

Descargas

131

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