ArticlePlant physiology2009
Heterotrimeric G protein signaling is required for epidermal cell death in rice.
Article in Plant physiology, 2009. 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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Who cites it
16 citing papers in PubMed, 37 citations in OpenAlex.
- SOBIR1 integrates pathogen recognition and hormonal metabolism in Nicotiana tabacum.Plant physiology · 2026Article
- Mechanisms behindFrontiers in plant science · 2026Article
- The role of OsRGA1 in aerenchyma formation and adventitious root growth in rice seedlings based on the U-Gompertz model.BMC plant biology · 2025Article
- 6-Methyl-5-hepten-2-one promotes programmed cell death during superficial scald development in pear.Molecular horticulture · 2024Article
- Extra-large G proteins have extra-large effects on agronomic traits and stress tolerance in maize and rice.Trends in plant science · 2023Review
- Review
- Research Advances in Heterotrimeric G-Protein α Subunits and Uncanonical G-Protein Coupled Receptors in Plants.International journal of molecular sciences · 2021Review
- Heterotrimeric G protein γ subunit DEP1 is involved in hydrogen peroxide signaling and promotes aerenchyma formation in rice roots.Plant signaling & behavior · 2021Article
- Heterotrimeric G-protein α subunit (RGA1) regulates tiller development, yield, cell wall, nitrogen response and biotic stress in rice.Scientific reports · 2021Article
- The heterotrimeric G protein β subunit RGB1 is required for seedling formation in rice.Rice (New York, N.Y.) · 2019Article
- OsWRKY42 represses OsMT1d and induces reactive oxygen species and leaf senescence in rice.Molecules and cells · 2014Article
- Heterotrimeric G protein-coupled signaling in plants.Annual review of plant biology · 2014Review
- The role of ethylene and ROS in salinity, heavy metal, and flooding responses in rice.Frontiers in plant science · 2014Article
- The role of G-proteins in plant immunity.Plant signaling & behavior · 2012Review
- Emerging roots alter epidermal cell fate through mechanical and reactive oxygen species signaling.The Plant cell · 2012Article
- G proteins as regulators in ethylene-mediated hypoxia signaling.Plant signaling & behavior · 2010Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In rice (Oryza sativa) adventitious root primordia are formed at the nodes as part of normal development. Upon submergence of rice plants, adventitious roots emerge from the nodes preceded by death of epidermal cells above the root primordia. Cell death is induced by ethylene and mediated by hydrogen peroxide (H(2)O(2)). Pharmacological experiments indicated that epidermal cell death was dependent on signaling through G proteins. Treatment with GTP-gamma-S induced epidermal cell death, whereas GDP-beta-S partially inhibited ethylene-induced cell death. The dwarf1 (d1) mutant of rice has repressed expression of the Galpha subunit RGA1 of heterotrimeric G protein. In d1 plants, cell death in response to ethylene and H(2)O(2) was nearly completely abolished, indicating that signaling through Galpha is essential. Ethylene and H(2)O(2) were previously shown to alter gene expression in epidermal cells that undergo cell death. Transcriptional regulation was not generally affected in the d1 mutant, indicating that altered gene expression is not sufficient to trigger cell death in the absence of Galpha. Analysis of genes encoding proteins related to G protein signaling revealed that four small GTPase genes, two GTPase-activating protein genes, and one GDP dissociation inhibitor gene but not RGA1 were differentially expressed in epidermal cells above adventitious roots, indicating that Galpha activity is regulated posttranscriptionally.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.