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A Protein Phosphatase 2C Involved in ABA Signal Transduction in Arabidopsis thaliana
Abstract
The plant hormone abscisic acid (ABA) mediates various responses such as stomatal closure, the maintenance of seed dormancy, and the inhibition of plant growth. All three responses are affected in the ABA-insensitive mutant abi1 of Arabidopsis thaliana , suggesting that an early step in the signaling of ABA is controlled by the ABI1 locus. The ABI1 gene was cloned by chromosome walking, and a missense mutation was identified in the structural gene of the abi1 mutant. The ABI1 gene encodes a protein with high similarity to protein serine or threonine phosphatases of type 2C with the novel feature of a putative Ca 2+ binding site. Thus, the control of the phosphorylation state of cell signaling components by the ABI1 product could mediate pleiotropic hormone responses.
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Saiki, R. K., Scharf, S., Faloona, F., Mullis, K. B., Horn, G. T., Erlich, H. A., & Arnheim, N. (1985) · Science · doi:10.1126/science.2999980 · Cited by 8,956
Auxin-resistant mutants of Arabidopsis thaliana with an altered morphology
Estelle, M. A., & Somerville, C. (1987) · Molecular and General Genetics MGG · doi:10.1007/bf00333575 · Cited by 576
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Li, J., & Chory, J. (1997) · Cell · doi:10.1016/s0092-8674(00)80357-8 · Cited by 1,650
Umezawa, T., Sugiyama, N., Mizoguchi, M., Hayashi, S., Myouga, F., Yamaguchi-Shinozaki, K., Ishihama, Y., Hirayama, T., & Shinozaki, K. (2009) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0907095106 · Cited by 1,123
Lopez-Molina, L., Mongrand, S., & Chua, N.-H. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.081594298 · Cited by 938
Molecular mechanisms of seed dormancy
GRAEBER, K., NAKABAYASHI, K., MIATTON, E., LEUBNER‐METZGER, G., & SOPPE, W. J. J. (2012) · Plant, Cell & Environment · doi:10.1111/j.1365-3040.2012.02542.x · Cited by 640
Zhu, S.-Y., Yu, X.-C., Wang, X.-J., Zhao, R., Li, Y., Fan, R.-C., Shang, Y., Du, S.-Y., Wang, X.-F., Wu, F.-Q., et al. (2007) · The Plant Cell · doi:10.1105/tpc.107.050666 · Cited by 632
Metadata
- Authors
- Meyer, K., Leube, M. P., & Grill, E.
- Venue
- Science
- Published
- 1994-06-03
- Volume
- 264
- Issue
- 5164
- Pages
- 1452-1455
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2057567296
- Cited by
- 729
- References
- 2
- FWCI
- 60.39
- Type
- journal article
- Language
- en
- Open access
- closed
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