Average cell volume

Range at growth rate 0.04/hour 5fL: at growth rate 0.11/hour 11fL fL or µm^3
Organism Cyanobacteria Synechocystis PCC 6803
Reference Wei Du et al., Photonfluxostat: A method for light-limited batch cultivation of cyanobacteria at different, yet constant, growth rates, Algal Research, Volume 20, December 2016, Pages 118-125 link p.121 right column bottom paragraph & figure 2A
Method P.119 right column bottom paragraph: "[Investigators] used the cultivation set-up described above to test specific growth-rate dependent responses of Synechocystis. [They] ran a total of 39 completely independent (parallel) photonfluxostat cultivations at different growth rates by varying the light intensity per OD720."
Comments P.121 right column bottom paragraph: "Concerning the average cell volume, faster growing Synechocystis cells were found to be larger than slower growing cells (Fig. 2A). As the growth rate increased from 0.04 to 0.11 h^−1 (corresponding to a doubling time of 6.3 h), the average cell volume significantly increased from 5 to 11 fL (p-value < 0.01). This is accompanied by a proportional drop in cell numbers per volume per OD730 (Fig. 2B) that results in a relatively stable gDW/L/OD730 under all conditions tested. The mechanism and explanation behind the correlation between growth rate and cell size remains elusive and the topic of much debate [ref 34]. It has, however, been observed for organisms across all phylogenetic kingdoms [refs 34,35]."
Entered by Uri M
ID 113874