Artículo
Phytochrome-dependent Temperature Perception Modulates Isoprenoid Metabolism
Bianchetti, Ricardo E.; de Luca, Maria Belén
; de Haro, Luis Alejandro
; Rosado, Daniele; Demarco, Diego; Conte, Mariana; Bermúdez, Luisa; Freschi, Luciano; Fernie, Alisdair R.; Michaelson, Louise; Haslam, Richard P.; Rossi, Magdalena; Carrari, Fernando Oscar
Fecha de publicación:
05/2020
Editorial:
American Society of Plant Biologist
Revista:
Plant Physiology
ISSN:
0032-0889
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Changes in environmental temperature influence many aspects of plant metabolism; however, the underlying regulatory mechanisms remain poorly understood. In addition to their role in light perception, phytochromes (PHYs) have been recently recognized as temperature sensors affecting plant growth. In particular, in Arabidopsis thaliana, high temperature reversibly inactivates PHYB, reducing photomorphogenesis-dependent responses. Here, we show the role of phytochrome-dependent temperature perception in modulating the accumulation of isoprenoid-derived compounds in tomato (Solanum lycopersicum) leaves and fruits. The growth of tomato plants under contrasting temperature regimes revealed that high temperatures resulted in co-ordinated up-regulation of chlorophyll catabolic genes, impairment of chloroplast biogenesis, and reduction of carotenoid synthesis in leaves in a PHYB1B2-dependent manner. Furthermore, by assessing a triple phyAB1B2 mutant and fruit-specific PHYA- or PHYB2-silenced plants, we demonstrated that biosynthesis of the major tomato fruit carotenoid, lycopene, is sensitive to fruit-localized PHY-dependent temperature perception. The collected data provide compelling evidence concerning the impact of PHY-mediated temperature perception on plastid metabolism in both leaves and fruit, specifically on the accumulation of isoprenoid-derived compounds.
Palabras clave:
TOMATO
,
TEMPERATURE PERCEPTION
,
CAROTENOIDS
,
PLASTID METABOLISM
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Articulos(OCA PQUE. CENTENARIO)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Citación
Bianchetti, Ricardo E.; de Luca, Maria Belén; de Haro, Luis Alejandro; Rosado, Daniele; Demarco, Diego; et al.; Phytochrome-dependent Temperature Perception Modulates Isoprenoid Metabolism; American Society of Plant Biologist; Plant Physiology; 5-2020; 1-37
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