ArticleJournal of experimental botany2014
Gα modulates salt-induced cellular senescence and cell division in rice and maize.
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed.
- Article
- Plant G proteins: Versatile signaling hubs for synergistic improvement of agronomic traits.Journal of integrative plant biology · 2026Review
- Mechanisms behindFrontiers in plant science · 2026Article
- The heterotrimeric G protein γ3 subunit, RGG3/GS3, integrates sugar-starvation and hormone-responsive signaling pathways to promote coleoptile elongation during anaerobic germination in rice.Plant molecular biology · 2025Article
- Plant PAQR-like sensors activate heterotrimeric G proteins to confer resistance against multiple pathogens.Molecular plant · 2025Article
- Article
- Genome-wide identification of heterotrimeric G protein genes in castor (Ricinus communis L.) and expression patterns under salt stress.BMC genomics · 2024Article
- Proteomic profiling ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
- RGA1 regulates grain size, rice quality and seed germination in the small and round grain mutant srg5.BMC plant biology · 2024Article
- Nitrate-responsive transcriptome analysis of rice RGA1 mutant reveals the role of G-protein alpha subunit in negative regulation of nitrogen-sensitivity and use efficiency.Plant cell reports · 2023Article
- Extra-large G proteins have extra-large effects on agronomic traits and stress tolerance in maize and rice.Trends in plant science · 2023Review
- Combating alkaline stress with Alkaline tolerance 1, which encodes a conserved Gγ protein in multiple crops.Plant communications · 2023Article
- Heterotrimeric G Protein Signaling in Abiotic Stress.Plants (Basel, Switzerland) · 2022Review
- Review
- Biological Parts for Engineering Abiotic Stress Tolerance in Plants.Biodesign research · 2022Review
- Gain time to adapt: How sorghum acquires tolerance to salinity.Frontiers in plant science · 2022Article
- Article
- Molecular Characterization of NDL1-AGB1 Mediated Salt Stress Signaling: Further Exploration of the Role ofCells · 2021Article
- Article
- Article
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3 authors.
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Abstract
The plant G-protein network, comprising Gα, Gβ, and Gγ core subunits, regulates development, senses sugar, and mediates biotic and abiotic stress responses. Here, we report G-protein signalling in the salt stress response using two crop models, rice and maize. Loss-of-function mutations in the corresponding genes encoding the Gα subunit attenuate growth inhibition and cellular senescence caused by sodium chloride (NaCl). Gα null mutations conferred reduced leaf senescence, chlorophyll degradation, and cytoplasm electrolyte leakage under NaCl stress. Sodium accumulated in both wild-type and Gα-mutant shoots to the same levels, suggesting that Gα signalling controls cell death in leaves rather than sodium exclusion in roots. Growth inhibition is probably initiated by osmotic change around root cells, because KCl and MgSO4 also suppressed seedling growth equally as well as NaCl. NaCl lowered rates of cell division and elongation in the wild-type leaf sheath to the level of the Gα-null mutants; however there was no NaCl-induced decrease in cell division in the Gα mutant, implying that the osmotic phase of salt stress suppresses cell proliferation through the inhibition of Gα-coupled signalling. These results reveal two distinct functions of Gα in NaCl stress in these grasses: attenuation of leaf senescence caused by sodium toxicity in leaves, and cell cycle regulation by osmotic/ionic stress.
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