Photosynthesis in marine macroalgae: evidence for carbon limitation

G. P. Holbrook; S. Beer; W. E. Spencer; J. B. Reiskind; J. S. Davis; G. Bowes

doi:10.1139/b88-083

Photosynthesis in marine macroalgae: evidence for carbon limitation

G. P. Holbrook, S. Beer, W. E. Spencer, J. B. Reiskind, J. S. Davis, G. Bowes

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

Abstract

Photosynthetic measurements for Cladophoropsis membranacea (Chlorophyta), Dilophus guineensis, Turbinaria turbinata and Lobophora variegata (Phaeophyta), and Laurencia papillosa (Rhodophyta), taken directly from their marine habitat, showed that only Cladophoropsis was saturated at seawater inorganic carbon levels (2.5 mM). The photosynthetic K_0.5 values for inorganic carbon ranged from 1.1-3.2 mM. The bicarbonate concentration in seawater is insufficient to overcome O₂ inhibition effects on photosynthesis, unless the macroalga has some from of CO₂ concentrating system, based on bicarbonate uptake or C₄ acid metabolism. -from Authors

Original language	English
Pages (from-to)	577-582
Number of pages	6
Journal	Canadian Journal of Botany
Volume	66
Issue number	3
DOIs	https://doi.org/10.1139/b88-083
State	Published - 1988
Externally published	Yes

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title = "Photosynthesis in marine macroalgae: evidence for carbon limitation",

abstract = "Photosynthetic measurements for Cladophoropsis membranacea (Chlorophyta), Dilophus guineensis, Turbinaria turbinata and Lobophora variegata (Phaeophyta), and Laurencia papillosa (Rhodophyta), taken directly from their marine habitat, showed that only Cladophoropsis was saturated at seawater inorganic carbon levels (2.5 mM). The photosynthetic K0.5 values for inorganic carbon ranged from 1.1-3.2 mM. The bicarbonate concentration in seawater is insufficient to overcome O2 inhibition effects on photosynthesis, unless the macroalga has some from of CO2 concentrating system, based on bicarbonate uptake or C4 acid metabolism. -from Authors",

author = "Holbrook, {G. P.} and S. Beer and Spencer, {W. E.} and Reiskind, {J. B.} and Davis, {J. S.} and G. Bowes",

year = "1988",

doi = "10.1139/b88-083",

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journal = "Botany",

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TY - JOUR

T1 - Photosynthesis in marine macroalgae

T2 - evidence for carbon limitation

AU - Holbrook, G. P.

AU - Beer, S.

AU - Spencer, W. E.

AU - Reiskind, J. B.

AU - Davis, J. S.

AU - Bowes, G.

PY - 1988

Y1 - 1988

N2 - Photosynthetic measurements for Cladophoropsis membranacea (Chlorophyta), Dilophus guineensis, Turbinaria turbinata and Lobophora variegata (Phaeophyta), and Laurencia papillosa (Rhodophyta), taken directly from their marine habitat, showed that only Cladophoropsis was saturated at seawater inorganic carbon levels (2.5 mM). The photosynthetic K0.5 values for inorganic carbon ranged from 1.1-3.2 mM. The bicarbonate concentration in seawater is insufficient to overcome O2 inhibition effects on photosynthesis, unless the macroalga has some from of CO2 concentrating system, based on bicarbonate uptake or C4 acid metabolism. -from Authors

AB - Photosynthetic measurements for Cladophoropsis membranacea (Chlorophyta), Dilophus guineensis, Turbinaria turbinata and Lobophora variegata (Phaeophyta), and Laurencia papillosa (Rhodophyta), taken directly from their marine habitat, showed that only Cladophoropsis was saturated at seawater inorganic carbon levels (2.5 mM). The photosynthetic K0.5 values for inorganic carbon ranged from 1.1-3.2 mM. The bicarbonate concentration in seawater is insufficient to overcome O2 inhibition effects on photosynthesis, unless the macroalga has some from of CO2 concentrating system, based on bicarbonate uptake or C4 acid metabolism. -from Authors

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Photosynthesis in marine macroalgae: evidence for carbon limitation

Abstract

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