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Crassulacean Acid Metabolism MeSH Descriptor Data 2022


MeSH Heading
Crassulacean Acid Metabolism
Tree Number(s)
G02.111.158.937.350
G02.111.669.700.350
G02.740.921.500
G03.191.937.350
G03.493.700.500
G03.800.700.350
G15.568.500
Unique ID
D000081962
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D000081962
Scope Note
A water-saving mode of photosynthesis whereby CARBON DIOXIDE (CO2) taken up during the nocturnal opening of stomata (STOMATA, PLANT) is fixed to produce malate, which is accumulated in VACUOLES overnight as malic acid and subsequently decarboxylated during the day with the resulting CO2 produced being re-fixed by RUBISCO and re-assimilated through the REDUCTIVE PENTOSE PHOSPHATE CYCLE. CAM photosynthesis is found mostly in plants in arid areas, but it is also found in aquatic plants and orchids.
Entry Term(s)
CAM Photosynthesis
Crassulacean Acid Metabolism Photosynthesis
Public MeSH Note
2021
History Note
2021
Date Established
2021/01/01
Date of Entry
2020/07/07
Revision Date
2020/06/09
Crassulacean Acid Metabolism Preferred
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