ArticleJournal of experimental botany2013
CPK3-phosphorylated RhoGDI1 is essential in the development of Arabidopsis seedlings and leaf epidermal cells.
Article in Journal of experimental botany, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 34 citations in OpenAlex.
- Calcium-dependent protein kinase signalling in plant immune responses: current status and future prospects.Planta · 2026Review
- A RSL4-CPKs feedback loop integrates auxin and ethylene signals to regulate root hair growth in Arabidopsis.The Plant journal : for cell and molecular biology · 2026Article
- Natural variation inScience advances · 2026Article
- SCAB1 coordinates sequential CaScience China. Life sciences · 2024Article
- Phosphorylation of RhoGDI1, a Rho GDP dissociation inhibitor, regulates root hair development inProceedings of the National Academy of Sciences of the United States of America · 2023Article
- Activation of actin-depolymerizing factor by CDPK16-mediated phosphorylation promotes actin turnover in Arabidopsis pollen tubes.PLoS biology · 2023Article
- Signaling network controlling ROP-mediated tip growth in Arabidopsis and beyond.Plant communications · 2023Review
- QTL Mapping Low-Temperature Germination Ability in the Maize IBM Syn10 DH Population.Plants (Basel, Switzerland) · 2022Article
- The role of CDPKs in plant development, nutrient and stress signaling.Frontiers in genetics · 2022Review
- The Arabidopsis Rho of Plants GTPase ROP1 Is a Potential Calcium-Dependent Protein Kinase (CDPK) Substrate.Plants (Basel, Switzerland) · 2021Article
- Genetic mapping reveals BjRf as a candidate gene controlling fertility restoration of the oxa CMS in Brassica juncea.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- Genome-Wide Identification and Characterization ofInternational journal of molecular sciences · 2021Article
- Two SLENDER AND CRINKLY LEAF dioxygenases play an essential role in rice shoot development.Journal of experimental botany · 2020Article
- OsMADS18, a membrane-bound MADS-box transcription factor, modulates plant architecture and the abscisic acid response in rice.Journal of experimental botany · 2019Article
- FRET biosensor allows spatio-temporal observation of shear stress-induced polar RhoGDIα activation.Communications biology · 2018Article
- Calcium: The Missing Link in Auxin Action.Plants (Basel, Switzerland) · 2013Review
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7 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The regulation of Rho of plants (ROP) in morphogenesis of leaf epidermal cells has been well studied, but the roles concerning regulators of ROPs such as RhoGDIs are poorly understood. This study reports that AtRhoGDI1 (GDI1) acts as a versatile regulator to modulate development of seedlings and leaf pavement cells. In mutant gdi1, leaf pavement cells showed shorter lobes in comparison with those in wild type. In GDI1-14 seedlings (GDI1-overexpression line) the growth of lobes in pavement cells was severely suppressed and the development of seedlings was altered. These results indicate that GDI1 plays an essential role in morphogenesis of epidermal pavement cells through modulating the ROP signalling pathways. The interaction between GDI1 and ROP2 or ROP6 was detected in the leaf pavement cells using FRET analysis. Dominant negative, not constitutively active, DN-rop6 could weaken the effect caused by overexpression of GDI1; because the pleiotropic phenotype of GDI1-14 plants was eliminated in the hybrid line GDI1-14 DN-rop6. GDI1 could be phosphorylated by CPK3. Three conserved Ser/Thr residues in GDI1 were determined as targeted amino acids for CPK3. Overexpression of GDI1(3D), not GDI1(3A), could rescue the abnormal growth phenotypes of gdi1-1 seedlings, demonstrating the impact of GDI1 phosphorylation in the development of Arabidopsis. In summary, these results suggest that GDI1 regulation in morphogenesis of seedlings and leaf pavement cells could be undergone through modulating the ROP signalling pathways and the phosphorylation of GDI1 by CPK3 was required for the developmental modulation in Arabidopsis.
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