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Storage period at -20°C after which lichens recovered

Value	10 years
Organism	Lichen
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 left column bottom paragraphPubMed ID15070769
Primary Source	Kappen, L., Schroeter, B., Scheidegger, C., Sommerkorn, M. & Hestmark, G. (1996) Adv. Space Res. 18, 119–128.
Comments	Kappen et al. (primary source) detected CO2 exchange by polar lichens at -20°C and found that photosynthetic carbon production and respiratory loss were measurable at -18°C to -12°C for certain species. The lichens recovered after having been stored 10 yr at -20°C.
Entered by	Uri M
ID	108051