Regulation of mRNA decay in plant responses to salt and osmotic stress.
Plant acclimation to environmental stresses requires fast signaling to initiate changes in developmental and metabolic responses. Regulation of gene expression by transcription factors and protein kinases acting upstream are important elements of responses to salt and drought. Gene expression can be also controlled at the post-transcriptional level. Recent analyses on mutants in mRNA metabolism factors suggest their contribution to stress signaling. Here we highlight the components of mRNA decay pathways that contribute to responses to osmotic and salt stress. We hypothesize that phosphorylation state of proteins involved in mRNA decapping affect their substrate specificity.
Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, Postbus 94215, 1090 GE, Amsterdam, The Netherlands.
Dorota
0000-0002-4227-1621
D
Kawa
Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, Postbus 94215, 1090 GE, Amsterdam, The Netherlands. c.s.testerink@uva.nl.
Christa
0000-0001-6738-115X
C
Testerink
D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism; D005095:Exoribonucleases / Q000378:metabolism; D009997:Osmotic Pressure; D010944:Plants / Q000235:genetics* / Q000378:metabolism; D011494:Protein Kinases / Q000378:metabolism; D012313:RNA / Q000378:metabolism*; D020871:RNA Stability / Q000187:drug effects*; D012965:Sodium Chloride / Q000494:pharmacology*; D013312:Stress, Physiological
D012965:Sodium Chloride; D012313:RNA; D011494:Protein Kinases; D005095:Exoribonucleases
5′→3′ exoribonucleases; Osmotic stress; P bodies; Posttranscriptional regulation; Protein phosphorylation; Salinity; SnRK2 kinases; mRNA decapping; mRNA decay; mRNA stability
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