Time for full photosynthetic acclimation of the CCM [Carbon concentrating mechanism] to low CO2 conditions

Range 2 hours - 5 hours
Organism Chlamydomonas reinhardtii
Reference Peter Vance and Martin H Spalding, Growth, photosynthesis, and gene expression in Chlamydomonas over a range of CO2 concentrations and CO2/O2 ratios: CO2 regulates multiple acclimation states, Canadian Journal of Botany, 2005, 83(7): 796-809, link p.798 left column 2nd paragraph
Primary Source Palmqvist, M., Ramazanov, Z., and Samuelsson, G. 1990. The role of extracellular carbonic anhydrase for accumulation of inorganic carbon in the green alga Chlamydomonas reinhardtii. A comparison between wild-type and cell-wall-less mutant cells. Physiol. Plant. 80: 267–276 link AND Burow MD, Chen ZY, Mouton TM, Moroney JV. Isolation of cDNA clones of genes induced upon transfer of Chlamydomonas reinhardtii cells to low CO2. Plant Mol Biol. 1996 May31(2):443-8 AND Borkhsenious ON, Mason CB, Moroney JV. The intracellular localization of ribulose-1,5-bisphosphate Carboxylase/Oxygenase in chlamydomonas reinhardtii. Plant Physiol. 1998 Apr116(4):1585-91 AND Somanchi, A., Handley, E.R., and Moroney, J.V. 1998. Chlamydomonas reinhardtii cDNAs upregulated in low-CO2 conditions: expression and analyses. Can. J. Bot. 76: 1003–1009 link AND Bozzo, G.G., and Colman, B. 2000. The induction of inorganic carbon transport and external carbonic anhydrase in Chlamydomonas reinhardtii is regulated by external CO2 concentration. Plant Cell Environ. 23: 1137–1144 PubMed ID8756610, 9536077
Comments P.798 left column 2nd paragraph: "The development of a functional CCM in low CO2 is not immediate, but estimates for the time required vary substantially. Coleman et al. (1984) reported that within 5 h after cells were transferred from high to low CO2, the K0.5 of photosynthesis was 20-fold less than in the 5% CO2 condition and that full acclimation to the low CO2 was reached within 16–24 h. However, several reports suggest an acclimation time of 2–5 h is sufficient for full photosynthetic acclimation (primary sources), although it may take longer to reach maximum CA [carbonic anhydrase] activity (primary source Palmqvist et al. 1990). Bozzo and Colman (primary source) suggested the variation in acclimation times may depend on the strain, but it is also possible it reflects differences in the conditions used to induce acclimation."
Entered by Uri M
ID 116801