ArticleJournal of experimental botany2016
The α-subunit of the rice heterotrimeric G protein, RGA1, regulates drought tolerance during the vegetative phase in the dwarf rice mutant d1.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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47 citing papers in PubMed, 101 citations in OpenAlex.
- Whole Genome Sequencing of the Moruga Hill Rice (Biotech (Basel (Switzerland)) · 2026Article
- Plant G proteins: Versatile signaling hubs for synergistic improvement of agronomic traits.Journal of integrative plant biology · 2026Review
- Harnessing brassinosteroid signaling in rice: from molecular pathways to environmentally adaptive breeding.Frontiers in plant science · 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
- Genome-wide association study identifies elite alleles of FLA2 and FLA9 controlling flag leaf angle in rice.BMC genomics · 2025Article
- Influence of expression and purification protocols on Gα biochemical activity: kinetics of plant and mammalian G protein cycles.Frontiers in molecular biosciences · 2025Article
- Genome-Wide Identification and Expression Analysis of the G-Protein Gene Family in Barley Under Abiotic Stresses.Plants (Basel, Switzerland) · 2024Article
- Research Progress on Mechanical Strength of Rice Stalks.Plants (Basel, Switzerland) · 2024Review
- Cicer super-pangenome provides insights into species evolution and agronomic trait loci for crop improvement in chickpea.Nature genetics · 2024Article
- Oryza CLIMtools: A genome-environment association resource reveals adaptive roles for heterotrimeric G proteins in the regulation of rice agronomic traits.Plant communications · 2024Article
- RGA1 regulates grain size, rice quality and seed germination in the small and round grain mutant srg5.BMC plant biology · 2024Article
- Miniature-inverted-repeat transposable elements contribute to phenotypic variation regulation of rice induced by space environment.Frontiers in plant science · 2024Article
- Oryza CLIMtools: A Genome-Environment Association Resource Reveals Adaptive Roles for Heterotrimeric G Proteins in the Regulation of Rice Agronomic Traits.bioRxiv : the preprint server for biology · 2023Article
- Extra-large G proteins have extra-large effects on agronomic traits and stress tolerance in maize and rice.Trends in plant science · 2023Review
- RGA1 Negatively Regulates Thermo-tolerance by Affecting Carbohydrate Metabolism and the Energy Supply in Rice.Rice (New York, N.Y.) · 2023Article
- OsmiR159 Modulate BPH Resistance Through Regulating G-Protein γ Subunit GS3 Gene in Rice.Rice (New York, N.Y.) · 2023Article
- Rapid Identification by Resequencing-Based QTL Mapping of a Novel AlleleInternational journal of molecular sciences · 2023Article
- Genome-Wide Analysis of SIMILAR TO RCD ONE (SRO) Family Revealed Their Roles in Abiotic Stress in Poplar.International journal of molecular sciences · 2023Article
- Heterotrimeric G Protein Signaling in Abiotic Stress.Plants (Basel, Switzerland) · 2022Review
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2 authors at 1 institution in 1 country.
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Abstract
Essential in the Green Revolution was the development of high-yielding dwarf varieties of rice (Oryza sativa L.), but their selection was not based on responses to water limitation. We studied physiological responses to progressive drought of the dwarf rice mutant, d1, in which the RGA1 gene, which encodes the GTP-binding α-subunit of the heterotrimeric G protein, is non-functional. Wild-type (WT) plants cease net carbon fixation 11 days after water is withheld, while d1 plants maintain net photosynthesis for an additional week. During drought, d1 plants exhibit greater stomatal conductance than the WT, but both genotypes exhibit the same transpirational water loss per unit leaf area. This is explained by a smaller driving force for water loss in d1 owing to its lower leaf temperatures, consistent with its more erect architecture. As drought becomes more severe, WT plants show an accelerated decline in photosynthesis, which may be exacerbated by the higher leaf temperatures in the WT. We thus show how a rice mutant with dwarf and erect leaves has a decreased susceptibility to water stress. Accordingly, it may be useful to incorporate RGA1 mutation in breeding or biotechnological strategies for development of drought-resistant rice.
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