Journal
CELLULAR AND MOLECULAR LIFE SCIENCES
Volume 69, Issue 19, Pages 3269-3283Publisher
SPRINGER BASEL AG
DOI: 10.1007/s00018-012-1094-2
Keywords
Abiotic stress; Arabidopsis; Post-translational modification; SUMO
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Protein post-translational modifications diversify the proteome and install new regulatory levels that are crucial for the maintenance of cellular homeostasis. Over the last decade, the ubiquitin-like modifying peptide small ubiquitin-like modifier (SUMO) has been shown to regulate various nuclear processes, including transcriptional control. In plants, the sumoylation pathway has been significantly implicated in the response to environmental stimuli, including heat, cold, drought, and salt stresses, modulation of abscisic acid and other hormones, and nutrient homeostasis. This review focuses on the emerging importance of SUMO in the abiotic stress response, summarizing the molecular implications of sumoylation and emphasizing how high-throughput approaches aimed at identifying the full set of SUMO targets will greatly enhance our understanding of the SUMO-abiotic stress association.
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