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Descriptor English: Crassulacean Acid Metabolism
Descriptor Spanish: Metabolismo Ácido de las Crasuláceas
Descriptor metabolismo ácido de las crasuláceas
Entry term(s) fotosíntesis CAM
fotosíntesis de metabolismo ácido de las crasuláceas
Scope note: Modo de ahorro de agua de la fotosíntesis en el que el DIÓXIDO DE CARBONO (CO2) captado durante la apertura nocturna de los estomas (ESTOMAS DE PLANTAS) es fijado para producir malato, el cual se acumula en VACUOLAS durante la noche como ácido málico y posteriormente es descarboxilado durante el día, de manera que el CO2 resultante producido es fijado de nuevo por la enzima RUBISCO y asimilado de nuevo a través del CICLO REDUCTOR DE LAS PENTOSAS FOSFATO. La fotosíntesis del metabolismo ácido de las crasuláceas tiene lugar principalmente en plantas en zonas áridas, pero también en plantas acuáticas y en orquídeas.
Descriptor Portuguese: Metabolismo Ácido das Crassuláceas
Descriptor French: Métabolisme acide crassulacéen
Entry term(s): CAM Photosynthesis
Crassulacean Acid Metabolism Photosynthesis
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
RDF Unique Identifier: https://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.
Allowable Qualifiers: DE drug effects
GE genetics
IM immunology
PH physiology
RE radiation effects
Public MeSH Note: 2021
History Note: 2021
DeCS ID: 59318
Unique ID: D000081962
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 2021/01/01
Date of Entry: 2020/07/07
Revision Date: 2020/06/09
Crassulacean Acid Metabolism - Preferred
Concept UI M000655182
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.
Preferred term Crassulacean Acid Metabolism
Entry term(s) CAM Photosynthesis
Crassulacean Acid Metabolism Photosynthesis



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