Observatorio de I+D+i UPM

Descripción
Drought is a major threat to crop production worldwide and is accentuated by global warming. Plant responses to this abiotic stress involve physiological changes overlapping, at least partially, the defense pathways elicited both by viruses and their herbivore vectors. Recently, a number of theoretical and empirical studies anticipated the influence of climate changes on vector-borne viruses of plants and animals, mainly addressing the effects on the virus itself or on the vector population dynamics, and inferring possible consequences on virus transmission. Here, we directly assess the effect of a severe water deficit on the efficiency of aphid-transmission of the Cauliflower mosaic virus (CaMV) or the Turnip mosaic virus (TuMV). For both viruses, our results demonstrate that the rate of vector-transmission is significantly increased from water-deprived source plants: CaMV transmission reproducibly increased by 34% and that of TuMV by 100%. In both cases, the enhanced transmission rate could not be explained by a higher virus accumulation, suggesting a more complex drought-induced process that remains to be elucidated. The evidence that infected plants subjected to drought are much better virus sources for insect vectors may have extensive consequences for viral epidemiology, and should be investigated in a wide range of plantvirus- vector systems.
Internacional	Si
JCR del ISI	Si
Título de la revista	Plos One
ISSN	1932-6203
Factor de impacto JCR	2,806
Información de impacto
Volumen	12
DOI
Número de revista	5
Desde la página	344
Hasta la página	353
Mes	SIN MES
Ranking

Esta actividad pertenece a memorias de investigación

• Autor: Manuella van Munster (INRA Montpellier)
• Autor: Michel Yvon (INRA Montpellier)
• Autor: Denis Vile (INRA Montpellier)
• Autor: Beatriz Dader Alonso (UPM)
• Autor: Alberto Fereres (ICA)
• Autor: SteÂphane Blanc (INRA Montpellier)

• Creador: Grupo de Investigación: Manejo Integrado de Plagas
• Departamento: Producción Agraria