The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index.
ABA-Activated SnRK2 Protein Kinase is Required for Dehydration Stress Signaling in Arabidopsis
Abstract
Protein phosphorylation has pivotal roles in ABA and osmotic stress signaling in higher plants. Two protein phosphatase genes, ABI1 and ABI2, are known to regulate these signaling pathways in Arabidopsis: The identity of ABA-activated protein kinases required for the ABA signaling, however, remains to be elucidated. Here we demonstrate that two protein kinases, p44 and p42, were activated by ABA in Arabidopsis T87 cultured cells, and at least one protein kinase, p44, was activated not only by ABA but also by low humidity in Arabidopsis plants. Analysis of T-DNA knockout mutants and biochemical analysis using a specific antibody revealed that the p44 is encoded by a SnRK2-type protein kinase gene, SRK2E. The srk2e mutation resulted in a wilty phenotype mainly due to loss of stomatal closure in response to a rapid humidity decrease. ABA-inducible gene expression of rd22 and rd29B was suppressed in srk2e. These results show that SRK2E plays an important role in ABA signaling in response to water stress.
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Cites
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Self-citationPlant responses to water deficit
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Raza, A., Razzaq, A., Mehmood, S. S., Zou, X., Zhang, X., Lv, Y., & Xu, J. (2019) · Plants · doi:10.3390/plants8020034 · Cited by 1,762
“Similarly, the protein kinase was collected and separated as SnRK2 and it is the activator of ABA [104].”
BackgroundOrganization of cis-acting regulatory elements in osmotic- and cold-stress-responsive promoters
Yamaguchi-Shinozaki, K., & Shinozaki, K. (2005) · Trends in Plant Science · doi:10.1016/j.tplants.2004.12.012 · Cited by 1,458
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Self-citationEngineering drought tolerance in plants: discovering and tailoring genes to unlock the future
Umezawa, T., Fujita, M., Fujita, Y., Yamaguchi-Shinozaki, K., & Shinozaki, K. (2006) · Current Opinion in Biotechnology · doi:10.1016/j.copbio.2006.02.002 · Cited by 802
Self-citationA gate–latch–lock mechanism for hormone signalling by abscisic acid receptors
Melcher, K., Ng, L.-M., Zhou, X. E., Soon, F.-F., Xu, Y., Suino-Powell, K. M., Park, S.-Y., Weiner, J. J., Fujii, H., Chinnusamy, V., et al. (2009) · Nature · doi:10.1038/nature08613 · Cited by 731
Metadata
- Authors
- Yoshida, R., Hobo, T., Ichimura, K., Mizoguchi, T., Takahashi, F., Aronso, J., Ecker, J. R., & Shinozaki, K.
- Venue
- Plant and Cell Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2002-12-15
- Volume
- 43
- Issue
- 12
- Pages
- 1473-1483
- ISSN
- 0032-0781 (ISSN-L)
- 1471-9053
- OpenAlex
- W2103113257
- Cited by
- 608
- References
- 58
- FWCI
- 15.95
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yoshida, R., Hobo, T., Ichimura, K., Mizoguchi, T., Takahashi, F., Aronso, J., Ecker, J. R., & Shinozaki, K. (2002). ABA-Activated SnRK2 Protein Kinase is Required for Dehydration Stress Signaling in Arabidopsis. Plant and Cell Physiology. https://doi.org/10.1093/pcp/pcf188
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