The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Ionic and Osmotic Effects of NaCl-Induced Inactivation of Photosystems I and II in Synechococcus sp.
Open accessAbstract
We report here that osmotic effects and ionic effects are both involved in the NaCl-induced inactivation of the photosynthetic machinery in the cyanobacteriumSynechococcus 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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Cites
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Cited by
Salt tolerance and salinity effects on plants: a review
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Membrane fluidity and its roles in the perception of environmental signals
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Self-citationSalt stress and phyto-biochemical responses of plants - a review
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Metadata
- Authors
- Allakhverdiev, S. I., Sakamoto, A., Nishiyama, Y., Inaba, M., & Murata, N.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2000-07-01
- Volume
- 123
- Issue
- 3
- Pages
- 1047-1056
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2153969233
- Cited by
- 577
- References
- 36
- FWCI
- 2.59
- Type
- journal article
- Language
- en
- Open access
- green
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- Allakhverdiev, S. I., Sakamoto, A., Nishiyama, Y., Inaba, M., & Murata, N. (2000). Ionic and Osmotic Effects of NaCl-Induced Inactivation of Photosystems I and II in Synechococcus sp. Plant Physiology. https://doi.org/10.1104/pp.123.3.1047
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