Estimated average turnover rates for photosynthetic carbon incorporation in Antarctic cryptoendolithic microbial communities

Range ~4e-9 1/hour
Organism Microbes
Reference Price PB, Sowers T. Temperature dependence of metabolic rates for microbial growth, maintenance, and survival. Proc Natl Acad Sci U S A. 2004 Mar 30 101(13):4631-6. p.4632 right column top paragraphPubMed ID15070769
Primary Source Johnston CG, Vestal JR. Photosynthetic carbon incorporation and turnover in antarctic cryptoendolithic microbial communities: are they the slowest-growing communities on Earth? Appl Environ Microbiol. 1991 Aug57(8):2308-11.PubMed ID16348539
Comments Johnston and Vestal (primary source) estimated average turnover rates of 4?10^-9 per hour for photosynthetic carbon incorporation in Antarctic cryptoendolithic microbial communities at ambient temperatures that were subzero for most of the year. The annual temperature cycle of these communities varies so much with sun angle that researchers are unable to compute metabolic rate as a function of temperature.
Entered by Uri M
ID 108052