ArticleThe Plant cell2007
The senescence-induced staygreen protein regulates chlorophyll degradation.
Article in The Plant cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 234 papers, 1 of them a synthesis that pooled it.
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Who cites it
234 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Comparative Transcriptomic Meta-Analysis Revealed Conserved Key Genes and Regulatory Networks Involved in Drought Tolerance in Cereal Crops.International journal of molecular sciences · 2021Pooled it
- Stage-preferential transcriptome profiling reveals senescence associated transcriptional programs linked to nutrient remobilization in rice flag leaves during grain filling.Plant molecular biology · 2026Article
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- Integrated physiological, biochemical, and gene expression responses of tomato (Solanum lycopersicum L.) to time-dependent salinity stress.BMC plant biology · 2026Article
- From signals to solutions: stress-induced leaf senescence and synthetic biology and AI approaches for crop resilience.Molecular horticulture · 2026Review
- Mechanisms underlying green flower formation.Horticulture research · 2026Article
- Golden leaf formation of Populus nigra is associated with the up-regulation of Stay-Green expression.Molecular horticulture · 2026Article
- Regulatory Role of Jasmonate Signaling in Dark-, Drought-, and Salt-Induced Leaf Senescence.International journal of molecular sciences · 2026Review
- Combined transcriptomic and proteomic analyses uncover molecular basis of heat tolerance in pakchoi (Frontiers in plant science · 2026Article
- Evolutionary diversification of theFrontiers in plant science · 2026Article
- Photosystem Perturbation by Staygreen Mutations Confers Allele-Dependent Defences Against Infections of Pathogens With Different Lifestyles and Abiotic Stress Tolerance.Plant, cell & environment · 2026Article
- Integrated metabolomic and transcriptomic analysis of the mechanism underlying pericarp variegation inFrontiers in plant science · 2026Article
- Identification of STN7-associated leaf senescence networks in thylakoid membranes of Arabidopsis.iScience · 2025Article
- A Comprehensive Review: Genetic Mapping of Genes Associated with Green Leaf Color Variations in Main Vegetable Crops.Plants (Basel, Switzerland) · 2025Review
- Integrated genomic and transcriptomic analysis reveals the mechanisms underlying leaf variegation in 'Gonggan' mandarin.BMC plant biology · 2025Article
- A fungal pathogen suppresses host leaf senescence to increase infection.Nature communications · 2025Article
- Natural mutation in Stay-Green (OsSGR) confers enhanced resistance to rice sheath blight through elevating cytokinin content.Plant biotechnology journal · 2025Article
- Systematic Analysis ofGenes · 2025Article
- Kinetics of Chlorophyll Degradation in Japanese Maple (Life (Basel, Switzerland) · 2025Article
174 more citing papers are in PubMed but not listed here.
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Loss of green color in leaves results from chlorophyll (Chl) degradation in chloroplasts, but little is known about how Chl catabolism is regulated throughout leaf development. Using the staygreen (sgr) mutant in rice (Oryza sativa), which maintains greenness during leaf senescence, we identified Sgr, a senescence-associated gene encoding a novel chloroplast protein. Transgenic rice overexpressing Sgr produces yellowish-brown leaves, and Arabidopsis thaliana pheophorbide a oxygenase-impaired mutants exhibiting a stay-green phenotype during dark-induced senescence have reduced expression of Sgr homologs, indicating that Sgr regulates Chl degradation at the transcriptional level. We show that the leaf stay-greenness of the sgr mutant is associated with a failure in the destabilization of the light-harvesting chlorophyll binding protein (LHCP) complexes of the thylakoid membranes, which is a prerequisite event for the degradation of Chls and LHCPs during senescence. Transient overexpression of Sgr in Nicotiana benthamiana and an in vivo pull-down assay show that Sgr interacts with LHCPII, indicating that the Sgr-LHCPII complexes are formed in the thylakoid membranes. Thus, we propose that in senescing leaves, Sgr regulates Chl degradation by inducing LHCPII disassembly through direct interaction, leading to the degradation of Chls and Chl-free LHCPII by catabolic enzymes and proteases, respectively.
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