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crassulacean acid metabolism
(redirected from Crassulacean acid)

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crassulacean acid metabolism [‚kras·ə¦lā·shən ¦as·əd mə′tab·ə‚liz·əm]
(botany)
A type of photosynthesis exhibited by many succulent plants in which carbon dioxide is taken up and stored during the night to allow the stomata to remain closed during the daytime, decreasing water loss. Abbreviated CAM.
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In the late 1970s, a colleague who was studying metabolic tricks that plants use in harsh environments proposed to von Willert that Welwitschia can conserve water by a process called crassulacean acid metabolism, or CAM.
Torn to ribbons in the desert: botanists puzzle over one of earth's ... by Millus, Susan / Science News
 
 
 
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