Abstract
The optimal growth of mesophilic methanotrophic bacteria (collection strains of the genera Methylocystis, Methylomonas, Methylosinus, and Methylobacter) occurred within temperature ranges of 31–34°C and 23–25°C. None of the 12 strains studied were able to grow at 1.5 or 4°C. Representatives of six methanotrophic species (strains Mcs. echinoides2, Mm. methanica12, Mb. bovis89, Mcs. pyriformis14, Mb. chroococcum90, and Mb. vinelandii87) could grow at 10°C (with a low specific growth rate). The results obtained suggest that some mesophilic methane-oxidizing bacteria display psychrotolerant (psychrotrophic) but not psychrophilic properties. In general, the Rosso model, which describes bacterial growth rate as a function of temperature, fits the experimental data well, although, for most methanotrophs, with symmetrical approximations for the optimal temperature.
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Kevbrina, M.V., Okhapkina, A.A., Akhlynin, D.S. et al. Growth of Mesophilic Methanotrophs at Low Temperatures. Microbiology 70, 384–391 (2001). https://doi.org/10.1023/A:1010417724037
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DOI: https://doi.org/10.1023/A:1010417724037