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Cited by 226

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Carbonic Anhydrase Activity in Leaves and Its Role in the First Step of C4 Photosynthesis

Open access
Hatch, Marshall D., Burnell, James N.·1990·Plant Physiology
DOI 10.1104/pp.93.2.825
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Abstract

In C(4) plants carbonic anhydrase catalyzes the critical first step of C(4) photosynthesis, the hydration of CO(2) to bicarbonate. The maximum activity of this enzyme in C(4) leaf extracts, measured by H(+) production with saturating CO(2) and extrapolated to 25 degrees C, was found to be 3,000 to 10,000 times the maximum photosynthesis rate for these leaves. Similar activities were found in C(3) leaf extracts. However, the calculated effective activity of this enzyme at in vivo CO(2) concentrations was apparently just sufficient to prevent the rate of conversion of CO(2) to HCO(3) (-) from limiting C(4) photosynthesis. This conclusion was supported by the mass spectrometric determination of leaf carbonic anhydrase activities.

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Metadata

Authors
Hatch, M. D., & Burnell, J. N.
Venue
Plant Physiology
Publisher
Oxford University Press (OUP)
Published
1990-06-01
Volume
93
Issue
2
Pages
825-828
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
DOI
10.1104/pp.93.2.825
OpenAlex
W1971237129
Cited by
226
References
0
FWCI
2.03
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Carbonic Anhydrase Activity in Leaves and Its Role in the First Step of C4 Photosynthesis. https://app.cochat.ai/papers/10.1104/pp.93.2.825
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Hatch, M. D., & Burnell, J. N. (1990). Carbonic Anhydrase Activity in Leaves and Its Role in the First Step of C4 Photosynthesis. Plant Physiology. https://doi.org/10.1104/pp.93.2.825

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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