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Adjustments of photosystem stoichiometry in chloroplasts improve the quantum efficiency of photosynthesis.
Open accessAbstract
The efficiency of photosynthetic electron transport depends on the coordinated interaction of photosystem II (PSII) and photosystem I (PSI) in the electron-transport chain. Each photosystem contains distinct pigment-protein complexes that harvest light from different regions of the visible spectrum. The light energy is utilized in an endergonic electron-transport reaction at each photosystem. Recent evidence has shown a large variability in the PSII/PSI stoichiometry in plants grown under different environmental irradiance conditions. Results in this work are consistent with the notion of a dynamic, rather than static, thylakoid membrane in which the stoichiometry of the two photosystems is adjusted and optimized in response to different light quality conditions. Direct evidence is provided that photosystem stoichiometry adjustments in chloroplasts are a compensation strategy designed to correct unbalanced absorption of light by the two photosystems. Such adjustments allow the plant to maintain a high quantum efficiency of photosynthesis under diverse light quality conditions and constitute acclimation that confers to plants a significant evolutionary advantage over that of a fixed photosystem stoichiometry in thylakoid membranes.
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Cited by
Protein phosphorylation in regulation of photosynthesis
Allen, J. F. (1992) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/s0005-2728(09)91014-3 · Cited by 915
Frequently asked questions about in vivo chlorophyll fluorescence: practical issues
Kalaji, H. M., Schansker, G., Ladle, R. J., Goltsev, V., Bosa, K., Allakhverdiev, S. I., Brestic, M., Bussotti, F., Calatayud, A., Dąbrowski, P., et al. (2014) · Photosynthesis Research · doi:10.1007/s11120-014-0024-6 · Cited by 832
Towards an understanding of photosynthetic acclimation
Walters, R. G. (2004) · Journal of Experimental Botany · doi:10.1093/jxb/eri060 · Cited by 630
Green-light supplementation for enhanced lettuce growth under red- and blue-light-emitting diodes
Kim, H.-H., Goins, G. D., Wheeler, R. M., & Sager, J. C. (2004) · HortScience · doi:10.21273/hortsci.39.7.1617 · Cited by 527
Anderson, J. M., Chow, W. S., & Park, Y.-I. (1995) · Photosynthesis Research · doi:10.1007/bf00020423 · Cited by 481
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Metadata
- Authors
- Chow, W. S., Melis, A., & Anderson, J. M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1990-10
- Volume
- 87
- Issue
- 19
- Pages
- 7502-7506
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2085434625
- Cited by
- 319
- References
- 0
- FWCI
- 2.70
- Type
- journal article
- Language
- en
- Open access
- green
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- Chow, W. S., Melis, A., & Anderson, J. M. (1990). Adjustments of photosystem stoichiometry in chloroplasts improve the quantum efficiency of photosynthesis. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.87.19.7502
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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