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J Exp Bot. 2001 Nov;52(364):2235-8.

Leaf O(2) uptake in the dark is independent of coincident CO(2) partial pressure.

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1
Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA. Amthor@aya.Yale.edu

Abstract

Elevated CO(2), in the dark, is sometimes reported to inhibit leaf respiration, with respiration usually measured as CO(2) efflux. Oxygen uptake may be a better gauge of respiration because non-respiratory processes can affect dark CO(2) efflux in elevated CO(2). Two methods of quantifying O(2) uptake indicated that leaf respiration was unaffected by coincident CO(2) level in the dark.

PMID:
11604463
[Indexed for MEDLINE]
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