Crassulacean acid metabolism

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crassulacean acid metabolism (CAM)

  • ベンケイソウ型酸代謝,ベンケイソウ型有機酸代謝,CAM型光合成(日本語)
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Glossary of "Ecology (6th ed.)" by Krebs (2009)

  • a form of photosynthesis in which the two chemical parts of photosynthesis are separated in time because CO2 is taken up at night through the stomata (which are then closed during the day) and fixed to be used later in the day to complete photosynthesis carbon fixation; an adaptation used by desert plants to conserve water.

Glossary of "Plant Biology (1st ed.)" by Graham et al. (2003)

  • The metabolic pathway in which carbon dioxide is fixed at night by the C4 pathway and simple sugars produced in the day by the C3 pathway. The name derives from the stonecrop family of flowering plants (Crassulaceae) where this pathway was first recognized.

Glossary of "Life (9th ed.)" by Sadava et al. (2011)

  • A metabolic pathway enabling the plants that possess it to store carbon dioxide at night and then perform photosynthesis during the day with stomata closed.

Glossary of Plant Systematics (1st ed.) by Simpson (2006)

  • An alternate photosynthetic pathway in some xeric, generally succulent plants and functioning to conserve water, in which initial fixation of carbon dioxide carboxylase to form malic acid, which is stored within vacuoles of the mesophyll cells; during the day stomata close and CO2 is released from the vacuoles into the cytoplasm, where it is fixed in the chloroplasts. Abbr: CAM.

Glossary of "Evolution of Plants (2nd ed.)" by Willis & McElwain (2014)

  • Plants that have a variation of the C4 pathway where crassulacean acid metabolism is used to fix atmospheric CO2. Characteristic of most succulent plants.


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