||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
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||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."