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Cited by 360

The DOI matches its Crossref record; 87 of the 87 references it cites were found in a registry or an index.

Arabidopsis CALCIUM-DEPENDENT PROTEIN KINASE8 and CATALASE3 Function in Abscisic Acid-Mediated Signaling and H2O2 Homeostasis in Stomatal Guard Cells under Drought Stress

Open access
Zou, Jun-Jie, Li, Xi-Dong, Ratnasekera, Disna, Wang, Cun, Liu, Wen-Xin, Song, Lian-Fen, Zhang, Wen-Zheng, Wu, Wei-Hua·2015·The Plant Cell
DOI 10.1105/tpc.15.00144
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Abstract

Drought is a major threat to plant growth and crop productivity. Calcium-dependent protein kinases (CDPKs, CPKs) are believed to play important roles in plant responses to drought stress. Here, we report that Arabidopsis thaliana CPK8 functions in abscisic acid (ABA)- and Ca(2+)-mediated plant responses to drought stress. The cpk8 mutant was more sensitive to drought stress than wild-type plants, while the transgenic plants overexpressing CPK8 showed enhanced tolerance to drought stress compared with wild-type plants. ABA-, H2O2-, and Ca(2+)-induced stomatal closing were impaired in cpk8 mutants. Arabidopsis CATALASE3 (CAT3) was identified as a CPK8-interacting protein, confirmed by yeast two-hybrid, coimmunoprecipitation, and bimolecular fluorescence complementation assays. CPK8 can phosphorylate CAT3 at Ser-261 and regulate its activity. Both cpk8 and cat3 plants showed lower catalase activity and higher accumulation of H2O2 compared with wild-type plants. The cat3 mutant displayed a similar drought stress-sensitive phenotype as cpk8 mutant. Moreover, ABA and Ca(2+) inhibition of inward K(+) currents were diminished in guard cells of cpk8 and cat3 mutants. Together, these results demonstrated that CPK8 functions in ABA-mediated stomatal regulation in responses to drought stress through regulation of CAT3 activity.

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Metadata

Authors
Zou, J.-J., Li, X.-D., Ratnasekera, D., Wang, C., Liu, W.-X., Song, L.-F., Zhang, W.-Z., & Wu, W.-H.
Venue
The Plant Cell
Publisher
Oxford University Press (OUP)
Published
2015-05
Volume
27
Issue
5
Pages
1445-1460
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
DOI
10.1105/tpc.15.00144
OpenAlex
W1959810190
Cited by
360
References
87
FWCI
27.41
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Arabidopsis CALCIUM-DEPENDENT PROTEIN KINASE8 and CATALASE3 Function in Abscisic Acid-Mediated Signaling and H2O2 Homeostasis in Stomatal Guard Cells under Drought Stress. https://app.cochat.ai/papers/10.1105/tpc.15.00144
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Zou, J.-J., Li, X.-D., Ratnasekera, D., Wang, C., Liu, W.-X., Song, L.-F., Zhang, W.-Z., & Wu, W.-H. (2015). Arabidopsis CALCIUM-DEPENDENT PROTEIN KINASE8 and CATALASE3 Function in Abscisic Acid-Mediated Signaling and H2O2 Homeostasis in Stomatal Guard Cells under Drought Stress. The Plant Cell. https://doi.org/10.1105/tpc.15.00144

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