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. 1989 Jan;89(1):133–137. doi: 10.1104/pp.89.1.133

Membrane-Associated Polypeptides Induced in Chlamydomonas by Limiting CO2 Concentrations 1

Martin H Spalding 1, Martha Jeffrey 1
PMCID: PMC1055808  PMID: 16666503

Abstract

Chlamydomonas reinhardtii and other unicellular green algae have a high apparent affinity for CO2, little O2 inhibition of photosynthesis, and reduced photorespiration. These characteristics result from operation of a CO2-concentrating system. The CO2-concentrating system involves active inorganic carbon transport and is under environmental control. Cells grown at limiting CO2 concentrations have inorganic carbon transport activity, but cells grown at 5% CO2 do not. Four membrane-associated polypeptides (Mr 19, 21, 35, and 36 kilodaltons) have been identified which either appear or increase in abundance during adaptation to limiting CO2 concentrations. The appearance of two of the polypeptides occurs over roughly the same time course as the appearance of the CO2-concentrating system activity in response to CO2 limitation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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