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The Water to Water ...
The Water to Water Cycles in Microalgae.
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Curien, Gilles (author)
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Flori, Serena (author)
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Villanova, Valeria (author)
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Magneschi, Leonardo (author)
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Giustini, Cécile (author)
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Forti, Giorgio (author)
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Matringe, Michel (author)
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- Petroutsos, Dimitris (author)
- Uppsala universitet,Fysiologi och miljötoxikologi
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Kuntz, Marcel (author)
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Finazzi, Giovanni (author)
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(creator_code:org_t)
- 2016-03-07
- 2016
- English.
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In: Plant and Cell Physiology. - : Oxford University Press (OUP). - 0032-0781 .- 1471-9053. ; 57:7, s. 1354-1363
- Related links:
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https://academic.oup...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- In oxygenic photosynthesis, light produces ATP plus NADPH via linear electron transfer, i.e. the in-series activity of the two photosystems: PSI and PSII. This process, however, is thought not to be sufficient to provide enough ATP per NADPH for carbon assimilation in the Calvin-Benson-Bassham cycle. Thus, it is assumed that additional ATP can be generated by alternative electron pathways. These circuits produce an electrochemical proton gradient without NADPH synthesis, and, although they often represent a small proportion of the linear electron flow, they could have a huge importance in optimizing CO2 assimilation. In Viridiplantae, there is a consensus that alternative electron flow comprises cyclic electron flow around PSI and the water to water cycles. The latter processes include photosynthetic O2 reduction via the Mehler reaction at PSI, the plastoquinone terminal oxidase downstream of PSII, photorespiration (the oxygenase activity of Rubisco) and the export of reducing equivalents towards the mitochondrial oxidases, through the malate shuttle. In this review, we summarize current knowledge about the role of the water to water cycles in photosynthesis, with a special focus on their occurrence and physiological roles in microalgae.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Keyword
- Electron transport
- Microalgae
- Photosynthesis
- Water to water cycles
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Curien, Gilles
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Flori, Serena
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Villanova, Valer ...
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Magneschi, Leona ...
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Giustini, Cécile
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Forti, Giorgio
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show more...
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Matringe, Michel
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Petroutsos, Dimi ...
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Kuntz, Marcel
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Finazzi, Giovann ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Botany
- Articles in the publication
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Plant and Cell P ...
- By the university
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Uppsala University