Leaf O2 uptake in the dark is independent of coincident CO2 partial pressure

Jeffrey S. Amthor; George W. Koch; Jennifer R. Willms; David B. Layzell

doi:10.1093/jexbot/52.364.2235

Leaf O₂ uptake in the dark is independent of coincident CO₂ partial pressure

Jeffrey S. Amthor, George W. Koch, Jennifer R. Willms, David B. Layzell

Biological Sciences

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Elevated CO₂, in the dark, is sometimes reported to inhibit leaf respiration, with respiration usually measured as CO₂ efflux. Oxygen uptake may be a better gauge of respiration because non-respiratory processes can affect dark CO₂ efflux in elevated CO₂. Two methods of quantifying O₂ uptake indicated that leaf respiration was unaffected by coincident CO₂ level in the dark.

Original language	English (US)
Pages (from-to)	2235-2238
Number of pages	4
Journal	Journal of Experimental Botany
Volume	52
Issue number	364
DOIs	https://doi.org/10.1093/jexbot/52.364.2235
State	Published - 2001

Keywords

Carbon dioxide
Oxygen
Respiration
Rumex crispus

ASJC Scopus subject areas

Physiology
Plant Science

Access to Document

10.1093/jexbot/52.364.2235

Cite this

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abstract = "Elevated CO2, in the dark, is sometimes reported to inhibit leaf respiration, with respiration usually measured as CO2 efflux. Oxygen uptake may be a better gauge of respiration because non-respiratory processes can affect dark CO2 efflux in elevated CO2. Two methods of quantifying O2 uptake indicated that leaf respiration was unaffected by coincident CO2 level in the dark.",

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KW - Respiration

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