ArticlePlant physiology2000
Ionic and osmotic effects of NaCl-induced inactivation of photosystems I and II in Synechococcus sp.
Article in Plant physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 127 papers.
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Who cites it
127 citing papers in PubMed, 570 citations in OpenAlex.
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- Foliar Application of Silicon Influences the Physiological and Epigenetic Responses of Wheat Grown Under Salt Stress.International journal of molecular sciences · 2024Article
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- Light Influences the Growth, Pigment Synthesis, Photosynthesis Capacity, and Antioxidant Activities inScientifica · 2024Article
- An insight into the roles of ubiquitin-specific proteases in plants: development and growth, morphogenesis, and stress response.Frontiers in plant science · 2024Review
- Genetic Architecture of Salt Tolerance in Cowpea (International journal of molecular sciences · 2023Article
- The Protective Effect of Exogenous Ascorbic Acid on Photosystem Inhibition of Tomato Seedlings Induced by Salt Stress.Plants (Basel, Switzerland) · 2023Article
- Exogenous Melatonin Spray Enhances Salinity Tolerance inLife (Basel, Switzerland) · 2023Review
- Long- and short-term acclimation of the photosynthetic apparatus to salinity inFrontiers in plant science · 2023Article
- Arbuscular mycorrhizal fungi alleviates salt stress inFrontiers in microbiology · 2023Article
- Salt-responsive bermudagrass microRNAs and insights into light reaction photosynthetic performance.Frontiers in plant science · 2023Article
67 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We report here that osmotic effects and ionic effects are both involved in the NaCl-induced inactivation of the photosynthetic machinery in the cyanobacterium Synechococcus sp. PCC 7942. Incubation of the cyanobacterial cells in 0.5 M NaCl induced a rapid and reversible decline and subsequent slow and irreversible loss of the oxygen-evolving activity of photosystem (PS) II and the electron transport activity of PSI. An Na(+)-channel blocker protected both PSII and PSI against the slow, but not the rapid, inactivation. The rapid decline resembled the effect of 1.0 M sorbitol. The presence of both an Na(+)-channel blocker and a water-channel blocker protected PSI and PSII against the short- and long-term effects of NaCl. Salt stress also decreased cytoplasmic volume and this effect was enhanced by the Na(+)-channel blocker. Our observations suggested that NaCl had both osmotic and ionic effects. The osmotic effect decreased the amount of water in the cytosol, rapidly increasing the intracellular concentration of salts. The ionic effect was caused by an influx of Na(+) ions through potassium/Na(+) channels that also increased concentrations of salts in the cytosol and irreversibly inactivated PSI and PSII.
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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.