Crassulacean acid metabolism
An elaborate carbon fixation pathway in which the stomata are open in cooler and more humid night-time hours, permitting the uptake of CO2 to be fixed and stored as a four-carbon acid (i.e. malate) so that during the hotter and drier day-time hours the CO2 is released providing the enzyme rubisco with high concentration of CO2 while the stomata are closed to reduce water loss through evapotranspiration.
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... under salinity; U. Lüttge. 17. Induction of Crassulacean acid metabolism by salinity &endash; molecular aspects; H.J. Bohnert. ...
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