Miricescu, Alexandra and Goslin, Kevin and Graciet, Emmanuelle (2018) Ubiquitylation in plants: signaling hub for the integration of environmental signals. Journal of Experimental Botany, 69 (19). pp. 4511-4527. ISSN 0022-0957

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Abstract

A fundamental question in biology is how organisms integrate the plethora of environmental cues that they perceive to trigger a co-ordinated response. The regulation of protein stability, which is largely mediated by the ubiquitin–proteasome system in eukaryotes, plays a pivotal role in these processes. Due to their sessile lifestyle and the need to respond rapidly to a multitude of environmental factors, plants are thought to be especially dependent on proteolysis to regulate cellular processes. In this review, we present the complexity of the ubiquitin system in plants, and discuss the relevance of the proteolytic and non-proteolytic roles of this system in the regulation and co-ordination of plant responses to environmental signals. We also discuss the role of the ubiquitin system as a key regulator of plant signaling pathways. We focus more specifically on the functions of E3 ligases as regulators of the jasmonic acid (JA), salicylic acid (SA), and ethylene hormone signaling pathways that play important roles to mount a co-ordinated response to multiple environmental stresses. We also provide examples of new players in this field that appear to integrate different cues and signaling pathways

Item Type:	Article
Keywords:	Abiotic stress; biotic stress; E3 ubiquitin ligase; environmental cues; ubiquitin code; ubiquitin system;
Academic Unit:	Faculty of Science and Engineering > Biology
Item ID:	12398
Identification Number:	https://doi.org/10.1093/jxb/ery165 A
Depositing User:	Emmanuelle Graciet
Date Deposited:	10 Feb 2020 17:26
Journal or Publication Title:	Journal of Experimental Botany
Publisher:	Oxford University Press
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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