Sulfolobus acidocaldarius
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| Brock et al. 1972 |
Sulfolobus acidocaldarius belongs to the hyperthermophilic archaea . The coccal-shaped archaea of the genus Sulfolobus (Phylum Crenarchaeota ) can be found on sulfur crystals in hot, hydrothermal springs .
Way of life
Sulfolobus acidocaldarius occurs in the vicinity of volcanoes. It lives there in sulfur-rich springs that can reach temperatures of up to 90 ° C and have a pH of 1 to 5.
Sulfolobus acidocaldarius is aerobic and its temperature optimum is 75 ° C. The minimum temperature (the temperature these archaea need to be able to grow at all) is 55 ° C. The pH optimum is 2-3.
Sulfolobus acidocaldarius is one of the iron-oxidizing microorganisms . These single-cell organisms can use various substrates to generate energy . They are able to oxidize chemolithotrophic hydrogen sulfide or elemental sulfur to sulfuric acid and use CO 2 as a carbon source, as well as to grow chemoorganotrophically by oxidizing Fe 2+ to Fe 3+ .
use
When Hochtemperaturlaugung of copper and iron ores is Sulfolobus used because it Fe 2+ to Fe 3+ can oxidize.
With the discovery of Sulfolobus and similar thermostable archaea such as B. Acidianus , from 1970, laid the foundation for hyperthermophilic microbiology . Sulfolobus was the first prokaryote to be found to grow above 80 ° C.
Web links
- Evolutionary Insight: New Connection Discovered Between Primordial Organisms and Complex Life , on: SciTechDaily, August 28, 2020, Source: Lancaster University
- Gabriel Tarrason Risa, Fredrik Hurtig, Sian Bray, Anne E. Hafner, Lena Harker-Kirschneck, Peter Faull, Colin Davis, Dimitra Papatziamou, Delyan R. Mutavchiev, Catherine Fan, Leticia Meneguello, Andre Arashiro Pulschen, Gautam Dey, Siân Culley, Mairi Kilkenny, Diorge P. Souza, Luca Pellegrini, Robertus AM de Bruin, Ricardo Henriques, Ambrosius P. Snijders, Andela Šaric, Ann-Christin Lindås, Nicholas P. Robinson, Buzz Baum: The proteasome controls ESCRT-III – mediated cell division in an archaeon , in: Science from August 7, 2020, doi: 10.1126 / science.aaz2532 , see also Proteasome
credentials
- ↑ Brock, TD, Brock, KM, Belly, RT, Weiss, RL Sulfolobus : a new genus of sulfur-oxidizing bacteria living at low pH and high temperature. Arch. Mikrobiol. (1972) 84: 54-68.
- ^ [1] , Catalog of Life
- ↑ Michael T. Madigan, John M. Martinko: Brock Mikrobiologie , 11th, revised edition, p. 490, ISBN 978-3-8273-7187-4