Artículo
Negative modulation of SA-signaling components by the capsid protein of Tobacco Mosaic Virus is required for viral long-distance movement
Venturuzzi, Andrea Laura
; Rodriguez, Maria Cecilia
; Conti, Gabriela
; Leone, Melisa
; Caro, María del Pilar
; Montecchia, Juan Francisco
; Zavallo, Diego
; Asurmendi, Sebastian
Fecha de publicación:
05/2021
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Plant Journal
ISSN:
0960-7412
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
An important aspect of plant–virus interaction is the way viruses dynamically move over long distances and how plant immunity modulates viral systemic movement. Salicylic acid (SA), a well-characterized hormone responsible for immune responses against virus, is activated through different transcription factors including TGA and WRKY. In tobamoviruses, evidence suggests that capsid protein (CP) is required for long-distance movement, although its precise role has not been fully characterized yet. Previously, we showed that the CP of Tobacco Mosaic Virus (TMV)-Cg negatively modulates the SA-mediated defense. In this study, we analyzed the impact of SA-defense mechanism on the long-distance transport of a truncated version of TMV (TMV ∆CP virus) that cannot move to systemic tissues. The study showed that the negative modulation of NPR1 and TGA10 factors allows the long-distance transport of TMV ∆CP virus. Moreover, we observed that the stabilization of DELLA proteins promotes TMV ∆CP systemic movement. We also characterized a group of genes, part of a network modulated by CP, involved in TMV ∆CP long-distance transport. Altogether, our results indicate that CP-mediated downregulation of SA signaling pathway is required for the virus systemic movement, and this role of CP may be linked to its ability to stabilize DELLA proteins.
Palabras clave:
COAT PROTEIN
,
DELLA PROTEIN
,
PLANTS IMMUNITY
,
SA
,
SYSTEMIC MOVEMENT
,
TOBAMOVIRUS
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (IABIMO)
Articulos de INSTITUTO DE AGROBIOTECNOLOGIA Y BIOLOGIA MOLECULAR
Articulos de INSTITUTO DE AGROBIOTECNOLOGIA Y BIOLOGIA MOLECULAR
Articulos(CCT - NOA SUR)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Citación
Venturuzzi, Andrea Laura; Rodriguez, Maria Cecilia; Conti, Gabriela; Leone, Melisa; Caro, María del Pilar; et al.; Negative modulation of SA-signaling components by the capsid protein of Tobacco Mosaic Virus is required for viral long-distance movement; Wiley Blackwell Publishing, Inc; Plant Journal; 106; 4; 5-2021; 896-912
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