Respiratory Metabolism in CAM Plants

Guillaume Tcherkez

doi:10.1007/978-3-319-68703-2_11

Respiratory Metabolism in CAM Plants

Guillaume Tcherkez

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

CAM metabolism involves a CO2 concentration mechanism in which organic acids are used as transitory carbon storage. The substrate on which CO2 is fixed derives from sugars via glycolysis. Therefore, CAM metabolism is intrinsically linked to enzymatic steps of catabolism and respiration. Respiration is essential to recycle products of malate metabolism (pyruvate) or to provide energy and reductive power sustaining malate synthesis and accumulation. Despite this importance, many aspects of CAM respiration are not well known, including flux quantitation, regulation and possible alternative pathways. The present Chapter summarizes key concepts and known enzymatic actors and emphasizes the need for a greater precision in CAM respiratory pathways.

Original language	English
Title of host publication	Plant Respiration: Metabolic Fluxes and Carbon Balance
Editors	Guillaume Tcherkez and Jaleh Ghashghaie
Place of Publication	Switzerland
Publisher	Springer International Publishing AG
Pages	227-246
Volume	43
ISBN (Print)	978-3-319-68701-8
DOIs	https://doi.org/10.1007/978-3-319-68703-2_11
Publication status	Published - 2017

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10.1007/978-3-319-68703-2_11

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title = "Respiratory Metabolism in CAM Plants",

abstract = "CAM metabolism involves a CO2 concentration mechanism in which organic acids are used as transitory carbon storage. The substrate on which CO2 is fixed derives from sugars via glycolysis. Therefore, CAM metabolism is intrinsically linked to enzymatic steps of catabolism and respiration. Respiration is essential to recycle products of malate metabolism (pyruvate) or to provide energy and reductive power sustaining malate synthesis and accumulation. Despite this importance, many aspects of CAM respiration are not well known, including flux quantitation, regulation and possible alternative pathways. The present Chapter summarizes key concepts and known enzymatic actors and emphasizes the need for a greater precision in CAM respiratory pathways.",

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AB - CAM metabolism involves a CO2 concentration mechanism in which organic acids are used as transitory carbon storage. The substrate on which CO2 is fixed derives from sugars via glycolysis. Therefore, CAM metabolism is intrinsically linked to enzymatic steps of catabolism and respiration. Respiration is essential to recycle products of malate metabolism (pyruvate) or to provide energy and reductive power sustaining malate synthesis and accumulation. Despite this importance, many aspects of CAM respiration are not well known, including flux quantitation, regulation and possible alternative pathways. The present Chapter summarizes key concepts and known enzymatic actors and emphasizes the need for a greater precision in CAM respiratory pathways.

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DO - 10.1007/978-3-319-68703-2_11

M3 - Chapter

SN - 978-3-319-68701-8

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BT - Plant Respiration: Metabolic Fluxes and Carbon Balance

A2 - null, Guillaume Tcherkez and Jaleh Ghashghaie

PB - Springer International Publishing AG

CY - Switzerland

ER -

Respiratory Metabolism in CAM Plants

Abstract

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