Molecular Sciences Salicylic Acid Binding Proteins (SABPs): The Hidden Forefront of Salicylic Acid Signalling - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Molecular Sciences Année : 2019

Molecular Sciences Salicylic Acid Binding Proteins (SABPs): The Hidden Forefront of Salicylic Acid Signalling

Résumé

Salicylic acid (SA) is a phytohormone that plays important roles in many aspects of plant life, notably in plant defenses against pathogens. Key mechanisms of SA signal transduction pathways have now been uncovered. Even though details are still missing, we understand how SA production is regulated and which molecular machinery is implicated in the control of downstream transcriptional responses. The NPR1 pathway has been described to play the main role in SA transduction. However, the mode of SA perception is unclear. NPR1 protein has been shown to bind SA. Nevertheless, NPR1 action requires upstream regulatory events (such as a change in cell redox status). Besides, a number of SA-induced responses are independent from NPR1. This shows that there is more than one way for plants to perceive SA. Indeed, multiple SA-binding proteins of contrasting structures and functions have now been identified. Yet, all of these proteins can be considered as candidate SA receptors and might have a role in multinodal (decentralized) SA input. This phenomenon is unprecedented for other plant hormones and is a point of discussion of this review.
Fichier principal
Vignette du fichier
Pokotylo et al., 2019 IJMS.pdf (1.91 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02280181 , version 1 (06-09-2019)

Identifiants

Citer

Igor Pokotylo, Volodymyr S Kravets, Eric Ruelland. Molecular Sciences Salicylic Acid Binding Proteins (SABPs): The Hidden Forefront of Salicylic Acid Signalling. International Journal of Molecular Sciences, 2019, 20 (18), pp.4377. ⟨10.3390/ijms20184377⟩. ⟨hal-02280181⟩
183 Consultations
161 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More