ArticlePlant physiology2012
The submergence tolerance gene SUB1A delays leaf senescence under prolonged darkness through hormonal regulation in rice.
Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
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Who cites it
57 citing papers in PubMed, 147 citations in OpenAlex.
- The old nourishes the new: 100 years of leaf senescence studies in Plant Physiology.Plant physiology · 2026Review
- Uncovering the Secrets of How Plants Adapt to Water Stress.Plant, cell & environment · 2026Review
- From signals to solutions: stress-induced leaf senescence and synthetic biology and AI approaches for crop resilience.Molecular horticulture · 2026Review
- Integrating multiomic resources and gene expression studies to identify candidates for engineering climate-resilientFrontiers in plant science · 2026Review
- Phytohormonal Regulation of Abiotic Stress Tolerance, Leaf Senescence and Yield Response in Field Crops: A Comprehensive Review.Biotech (Basel (Switzerland)) · 2025Review
- Identification of transcription factors associated with leaf senescence in tobacco.Scientific reports · 2024Article
- Differential leaf flooding resilience in Arabidopsis thaliana is controlled by ethylene signaling-activated and age-dependent phosphorylation of ORESARA1.Plant communications · 2024Article
- Possible Roles of Carbohydrate Management and Cytokinin in the Process of Defoliation-Regrowth Cycles in Rice.International journal of molecular sciences · 2024Article
- Flooding Tolerance of Rice: Regulatory Pathways and Adaptive Mechanisms.Plants (Basel, Switzerland) · 2024Review
- Features of the Effect of Quercetin on Different Genotypes of Wheat under Hypoxia.International journal of molecular sciences · 2024Article
- Identification and Regulation of Hypoxia-Tolerant and Germination-Related Genes in Rice.International journal of molecular sciences · 2024Review
- Abiotic Stress in Rice: Visiting the Physiological Response and Its Tolerance Mechanisms.Plants (Basel, Switzerland) · 2023Review
- Abiotic Stress-Induced Leaf Senescence: Regulatory Mechanisms and Application.International journal of molecular sciences · 2023Review
- SUB1A-1 anchors a regulatory cascade for epigenetic and transcriptional controls of submergence tolerance in rice.PNAS nexus · 2023Article
- Recent Molecular Aspects and Integrated Omics Strategies for Understanding the Abiotic Stress Tolerance of Rice.Plants (Basel, Switzerland) · 2023Review
- Plant responses to limited aeration: Advances and future challenges.Plant direct · 2023Article
- Multi-stress resilience in plants recovering from submergence.Plant biotechnology journal · 2023Review
- Transcriptome analysis of gene expression in the tomato leaf premature senescence mutant.Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Article
- Elucidating the Response of Crop Plants towards Individual, Combined and Sequentially Occurring Abiotic Stresses.International journal of molecular sciences · 2021Review
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Leaf senescence is a natural age-dependent process that is induced prematurely by various environmental stresses. Typical alterations during leaf senescence include breakdown of chlorophyll, a shift to catabolism of energy reserves, and induction of senescence-associated genes, all of which can occur during submergence, drought, and constant darkness. Here, we evaluated the influence of the submergence tolerance regulator, SUBMERGENCE1A (SUB1A), in the acclimation responses during leaf senescence caused by prolonged darkness in rice (Oryza sativa). SUB1A messenger RNA was highly induced by prolonged darkness in a near-isogenic line containing SUB1A. Genotypes with conditional and ectopic overexpression of SUB1A significantly delayed loss of leaf color and enhanced recovery from dark stress. Physiological analysis revealed that SUB1A postpones dark-induced senescence through the maintenance of chlorophyll and carbohydrate reserves in photosynthetic tissue. This delay allowed leaves of SUB1A genotypes to recover photosynthetic activity more quickly upon reexposure to light. SUB1A also restricted the transcript accumulation of representative senescence-associated genes. Jasmonate and salicylic acid are positive regulators of leaf senescence, but ectopic overexpression of SUB1A dampened responsiveness to both hormones in the context of senescence. We found that ethylene accelerated senescence stimulated by darkness and jasmonate, although SUB1A significantly restrained dark-induced ethylene accumulation. Overall, SUB1A genotypes displayed altered responses to prolonged darkness by limiting ethylene production and responsiveness to jasmonate and salicylic acid, thereby dampening the breakdown of chlorophyll, carbohydrates, and the accumulation of senescence-associated messenger RNAs. A delay of leaf senescence conferred by SUB1A can contribute to the enhancement of tolerance to submergence, drought, and oxidative stress.
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