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Plant Mol Biol. 1999 Aug;40(6):1055-62.

As Chlamydomonas reinhardtii acclimates to low-CO2 conditions there is an increase in cyclophilin expression.

Author information

1
Department of Biological Sciences, Louisiana State University, Baton Rouge 70803, USA.

Abstract

When exposed to low CO2 levels, Chlamydomonas reinhardtii acquires the ability to accumulate CO2 to increase photosynthetic carbon fixation. A cDNA library has been constructed and screened to facilitate the identification of the different genes and proteins involved in this acclimation to low-CO2 conditions. The differential cDNA library screening led to the identification of several cDNAs up-regulated under low-CO2 conditions. One such cDNA shows homology to cyclophilins, a class of immunophilins with a peptidyl-prolyl cis-trans isomerase activity. This is the first report of an algal cyclophilin. In this report we study the changes in the C. reinhardtii cyclophilin transcript and protein levels during low-CO2 adaptation. Possible reasons for the increased cyclophilin expression in response to the drop in CO2 concentration are discussed.

PMID:
10527429
[Indexed for MEDLINE]

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