Crassulacean acid metabolism, also known as CAM photosynthesis, is an elaborate carbon fixation pathway in some photosyntheticplants. CAM is usually found in plants living in arid conditions, including cacti and pineapples. It is named after the plant family in which it was first discovered, the Crassulaceae, which includes jade plants and sedums. Its metabolic pathways were described in the late 1950's by Ransom and Thomas at Newcastle.
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