crassulacean acid metabolism

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crassulacean acid metabolism

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crassulacean acid metabolism (CAM)

a method of PHOTOSYNTHESIS found in certain succulent plants (members of the family Crassulaceae) that live in hot, dry climates and close their stomata during the day to avoid excessive TRANSPIRATION losses and open them at night. During the night CO2 is taken in and stored as organic acids (e.g. malic acid); during the day the CO2 is released from the organic acids and used in the CALVIN CYCLE.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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Further insights into the evolution of aquatic CAM photosynthesis are possible through comparative studies of certain taxa.
The team is studying a variety of drought-resistant plants to unlock the mystery of CAM photosynthesis. For this mission, they sequenced the genome KalanchoAaAaAeAe1/2 fedtschenkoi, an emerging model in CAM genomi research, due to its relatively small genome structure and amenability to genetic modification.