ArticlePlant physiology2014
Impairment in Sulfite Reductase Leads to Early Leaf Senescence in Tomato Plants.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 48 citations in OpenAlex.
- Sulfite dynamics affect drought tolerance and water status in Arabidopsis and tomato.Journal of experimental botany · 2026Article
- UV-C-induced reactive carbonyl species are better detoxified in the halophytic plants Salicornia brachiata and Arthrocnemum macrostachyum than in the halophytic Sarcocornia fruticosa plants.The Plant journal : for cell and molecular biology · 2025Article
- Catalysts for sulfur: understanding the intricacies of enzymes orchestrating plant sulfur anabolism.Planta · 2024Review
- Identifying and Characterizing Candidate Genes Contributing to a Grain Yield QTL in Wheat.Plants (Basel, Switzerland) · 2023Article
- A D-cysteine desulfhydrase, SlDCD2, participates in tomato fruit ripening by modulating ROS homoeostasis and ethylene biosynthesis.Horticulture research · 2023Article
- Sulfur signaling and starvation response in Arabidopsis.iScience · 2022Review
- Morphological, Physiological and Molecular Markers for Salt-Stressed Plants.Plants (Basel, Switzerland) · 2021Review
- Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism inFrontiers in plant science · 2021Article
- Comparative Proteomic Analysis by iTRAQ Reveals that Plastid Pigment Metabolism Contributes to Leaf Color Changes in Tobacco (International journal of molecular sciences · 2020Article
- Mutation ofFrontiers in plant science · 2020Article
- Quantitative proteomic analysis of tomato genotypes with differential cadmium tolerance.Environmental science and pollution research international · 2019Article
- Transcriptional Reprogramming of Pea Leaves at Early Reproductive Stages.Frontiers in plant science · 2019Article
- Exogenous Melatonin Mitigates Methyl Viologen-Triggered Oxidative Stress in Poplar Leaf.Molecules (Basel, Switzerland) · 2018Article
- The Maize Sulfite Reductase Is Involved in Cold and Oxidative Stress Responses.Frontiers in plant science · 2018Article
- Sulfite Reductase Co-suppression in Tobacco Reveals Detoxification Mechanisms and Downstream Responses Comparable to Sulfate Starvation.Frontiers in plant science · 2018Article
- Overexpression of the Maize Sulfite Oxidase Increases Sulfate and GSH Levels and Enhances Drought Tolerance in Transgenic Tobacco.Frontiers in plant science · 2018Article
- iTRAQ-Based Quantitative Proteomic Analysis Reveals Cold Responsive Proteins Involved in Leaf Senescence in Upland Cotton (Gossypium hirsutum L.).International journal of molecular sciences · 2017Article
- Environmental stress is the major cause of transcriptomic and proteomic changes in GM and non-GM plants.Scientific reports · 2017Article
- Higher Novel L-Cys Degradation Activity Results in Lower Organic-S and Biomass inPlant physiology · 2017Article
- C-Terminal Region of Sulfite Reductase Is Important to Localize to Chloroplast Nucleoids in Land Plants.Genome biology and evolution · 2016Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sulfite reductase (SiR) is an essential enzyme of the sulfate assimilation reductive pathway, which catalyzes the reduction of sulfite to sulfide. Here, we show that tomato (Solanum lycopersicum) plants with impaired SiR expression due to RNA interference (SIR Ri) developed early leaf senescence. The visual chlorophyll degradation in leaves of SIR Ri mutants was accompanied by a reduction of maximal quantum yield, as well as accumulation of hydrogen peroxide and malondialdehyde, a product of lipid peroxidation. Interestingly, messenger RNA transcripts and proteins involved in chlorophyll breakdown in the chloroplasts were found to be enhanced in the mutants, while transcripts and their plastidic proteins, functioning in photosystem II, were reduced in these mutants compared with wild-type leaves. As a consequence of SiR impairment, the levels of sulfite, sulfate, and thiosulfate were higher and glutathione levels were lower compared with the wild type. Unexpectedly, in a futile attempt to compensate for the low glutathione, the activity of adenosine-5'-phosphosulfate reductase was enhanced, leading to further sulfite accumulation in SIR Ri plants. Increased sulfite oxidation to sulfate and incorporation of sulfite into sulfoquinovosyl diacylglycerols were not sufficient to maintain low basal sulfite levels, resulting in accumulative leaf damage in mutant leaves. Our results indicate that, in addition to its biosynthetic role, SiR plays an important role in prevention of premature senescence. The higher sulfite is likely the main reason for the initiation of chlorophyll degradation, while the lower glutathione as well as the higher hydrogen peroxide and malondialdehyde additionally contribute to premature senescence in mutant leaves.
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Registered trials
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.