Regulation of shoot and root development through mutual signaling

Autor: Jérôme Puig, Emmanuel Guiderdoni, Germain Pauluzzi, Pascal Gantet
Rok vydání: 2012
Předmět:
0106 biological sciences
Arabidopsis thaliana
Caroténoïde
Arabidopsis
F62 - Physiologie végétale - Croissance et développement
Plant Science
Nitrate
01 natural sciences
F50 - Anatomie et morphologie des plantes
Plant Roots
Système racinaire
chemistry.chemical_compound
Physiologie de la nutrition
Nutrient
Gene Expression Regulation
Plant
2. Zero hunger
chemistry.chemical_classification
Regulation of gene expression
0303 health sciences
food and beverages
Mitochondrie
Lactone
ARN
Shoot
Cytokinin
Plante
plant development
Signal transduction
Plant Shoots
Développement biologique
Signal Transduction
Strigolactone
Phosphate
Biology
03 medical and health sciences
nitrate
Auxin
Botany
strigolactone
Molecular Biology
phosphate
miRNA
030304 developmental biology
Substance de croissance végétale
Arabidopsis Proteins
fungi
systemic signaling
biology.organism_classification
Auxine
BYPASS1
F61 - Physiologie végétale - Nutrition
chemistry
Pousse
010606 plant biology & botany
Zdroj: Molecular Plant
ISSN: 1752-9867
Popis: Plants adjust their development in relation to the availability of nutrient sources. This necessitates signaling between root and shoot. Aside from the well-known systemic signaling processes mediated by auxin, cytokinin, and sugars, new pathways involving carotenoid-derived hormones have recently been identified. The auxin-responsive MAX pathway controls shoot branching through the biosynthesis of strigolactone in the roots. The BYPASS1 gene affects the production of an as-yet unknown carotenoid-derived substance in roots that promotes shoot development. Novel local and systemic mechanisms that control adaptive root development in response to nitrogen and phosphorus starvation were recently discovered. Notably, the ability of the NITRATE TRANSPORTER 1.1 to transport auxin drew for the first time a functional link between auxin, root development, and nitrate availability in soil. The study of plant response to phosphorus starvation allowed the identification of a systemic mobile miRNA. Deciphering and integrating these signaling pathways at the whole-plant level provide a new perspective for understanding how plants regulate their development in response to environmental cues.
Databáze: OpenAIRE
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