Ubiquitin ligases mediate growth and development by promoting protein death

The ubiquitin proteasome system (UPS) allows plants to effectively and efficiently alter their proteome so as to ensure developmental plasticity and environmental adaptation. Recent work has demonstrated that the UPS is an integral part of multiple hormone-signaling pathways, which modulate cell gro...

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Bibliographic Details
Published in:Current opinion in plant biology 2007-12, Vol.10 (6), p.624-632
Main Authors: Stone, Sophia L, Callis, Judy
Format: Article
Language:English
Subjects:
Abscisic Acid - metabolism
cell differentiation
cell growth
Cyclopentanes - metabolism
Ethylenes - metabolism
gene expression regulation
Gibberellins - metabolism
Indoleacetic Acids - metabolism
literature reviews
messenger RNA
Models, Biological
Oxylipins - metabolism
Plant Development
Plant Growth Regulators - biosynthesis
Plant Growth Regulators - metabolism
plant hormones
plants
Plants - enzymology
Plants - metabolism
Proteasome Endopeptidase Complex - physiology
protein degradation
Signal Transduction
transcription factors
ubiquitin proteasome system
ubiquitin-protein ligase
Ubiquitin-Protein Ligases - metabolism
Ubiquitin-Protein Ligases - physiology
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Summary:The ubiquitin proteasome system (UPS) allows plants to effectively and efficiently alter their proteome so as to ensure developmental plasticity and environmental adaptation. Recent work has demonstrated that the UPS is an integral part of multiple hormone-signaling pathways, which modulate cell growth and differentiation. In response to variation in hormone levels, the UPS regulates the abundance of signaling factors, mainly hormone-responsive transcription factors, which mediate cellular responses. Recent exciting studies have shown that hormones directly or indirectly modulate substrate ubiquitination by regulating E3-substrate interaction. Other avenues of regulation include regulating E3 mRNA abundance.
ISSN:1369-5266
1879-0356
DOI:10.1016/j.pbi.2007.07.010