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SIZ1-Mediated Sumoylation of ICE1 Controls CBF3/DREB1A Expression and Freezing Tolerance in Arabidopsis[W][OA]
SIZ1-dependent sumoylation of ICE1 may activate and/or stabilize the protein, facilitating expression of CBF3/DREB1A and repression of MYB15, leading to low temperature tolerance. Expand
The Arabidopsis SUMO E3 ligase SIZ1 controls phosphate deficiency responses.
Results indicate that AtSIZ1 is a SUMO E3 ligase and that sumoylation is a control mechanism that acts both negatively and positively on different Pi deficiency responses. Expand
N‐WASP, a novel actin‐depolymerizing protein, regulates the cortical cytoskeletal rearrangement in a PIP2‐dependent manner downstream of tyrosine kinases.
It is concluded that N‐WASP transmits signals from tyrosine kinases to cause a polarized rearrangement of cortical actin filaments dependent on PIP2. Expand
Expression Profiling-Based Identification of CO2-Responsive Genes Regulated by CCM1 Controlling a Carbon-Concentrating Mechanism in Chlamydomonas reinhardtii1
The fact that the induction of almost all low-CO2 inducible genes was impaired in the ccm1 mutant suggests that CCM1 is a master regulator of CCM through putative low- CO2 signal transduction pathways. Expand
Cold Signaling and Cold Response in Plants
Recent advances in cold stress signaling and tolerance are highlighted and it is demonstrated that post-transcriptional and post- translational regulations play a role in the regulation of cold signaling. Expand
Regulation of water, salinity, and cold stress responses by salicylic acid
The effects of SA on the water stress responses and regulation of stomatal closure are reviewed. Expand
AtHKT1 Facilitates Na+ Homeostasis and K+ Nutrition in Planta1
The results establish that AtHKT1 is a focal determinant of Na+ homeostasis in planta, as either positive or negative modulation of its function disturbs ion status that is manifested as salt sensitivity. Expand
Sumoylation, a post-translational regulatory process in plants.
The reversible conjugation of the small ubiquitin-related modifier (SUMO) peptide to protein substrates (sumoylation) is emerging as a major post-translational regulatory process in animals and otherExpand
Sumoylation of ABI5 by the Arabidopsis SUMO E3 ligase SIZ1 negatively regulates abscisic acid signaling
Evidence is presented that the SUMO E3 ligase SIZ1 negatively regulates abscisic acid (ABA) signaling, which is dependent on the bZIP transcripton factor ABI5, and that Siz1 represses ABA5 signaling function independent of AFP1. Expand
Ccm1, a regulatory gene controlling the induction of a carbon-concentrating mechanism in Chlamydomonas reinhardtii by sensing CO2 availability
Data indicate that Ccm1 is essential to control the induction of CCM by sensing CO2 availability in Chlamydomonas cells, and reveals that His-54 within the putative zinc-finger motif of the CCM1 is crucial to its regulatory function. Expand