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SRK2C, a SNF1-related Protein Kinase 2, Improves Drought Tolerance by Controlling Stress-responsive Gene Expression in Arabidopsis Thaliana

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Specialty Science
Date 2004 Nov 25
PMID 15561775
Citations 123
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Abstract

Protein phosphorylation/dephosphorylation are major signaling events induced by osmotic stress in higher plants. Here, we showed that a SNF1-related protein kinase 2 (SnRK2), SRK2C, is an osmotic-stress-activated protein kinase in Arabidopsis thaliana that can significantly impact drought tolerance of Arabidopsis plants. Knockout mutants of SRK2C exhibited drought hypersensitivity in their roots, suggesting that SRK2C is a positive regulator of drought tolerance in Arabidopsis roots. Additionally, transgenic plants with CaMV35S promoter::SRK2C-GFP displayed higher overall drought tolerance than control plants. Whereas stomatal regulation in 35S::SRK2C-GFP plants was not altered, microarray analysis revealed that their drought tolerance coincided with up-regulation of many stress-responsive genes, for example, RD29A, COR15A, and DREB1A/CBF3. From these results, we concluded that SRK2C is capable of mediating signals initiated during drought stress, resulting in appropriate gene expression. Our present study reveals new insights around signal output from osmotic-stress-activated SnRK2 protein kinase as well as supporting feasibility of manipulating SnRK2 toward improving plant osmotic-stress tolerance.

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References
1.
Ichimura K, Mizoguchi T, Yoshida R, Yuasa T, Shinozaki K . Various abiotic stresses rapidly activate Arabidopsis MAP kinases ATMPK4 and ATMPK6. Plant J. 2000; 24(5):655-65. DOI: 10.1046/j.1365-313x.2000.00913.x. View

2.
Knight H, Zarka D, Okamoto H, Thomashow M, Knight M . Abscisic acid induces CBF gene transcription and subsequent induction of cold-regulated genes via the CRT promoter element. Plant Physiol. 2004; 135(3):1710-7. PMC: 519084. DOI: 10.1104/pp.104.043562. View

3.
Gilmour S, Zarka D, Stockinger E, Salazar M, Houghton J, Thomashow M . Low temperature regulation of the Arabidopsis CBF family of AP2 transcriptional activators as an early step in cold-induced COR gene expression. Plant J. 1999; 16(4):433-42. DOI: 10.1046/j.1365-313x.1998.00310.x. View

4.
Kasuga M, Liu Q, Miura S, Yamaguchi-Shinozaki K, Shinozaki K . Improving plant drought, salt, and freezing tolerance by gene transfer of a single stress-inducible transcription factor. Nat Biotechnol. 1999; 17(3):287-91. DOI: 10.1038/7036. View

5.
Mitsuhara I, Ugaki M, Hirochika H, Ohshima M, Murakami T, Gotoh Y . Efficient promoter cassettes for enhanced expression of foreign genes in dicotyledonous and monocotyledonous plants. Plant Cell Physiol. 1996; 37(1):49-59. DOI: 10.1093/oxfordjournals.pcp.a028913. View