Planomicrobium psychrophilum
| Planomicrobium psychrophilum | ||||||||||||
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| Scientific name | ||||||||||||
| Planomicrobium psychrophilum | ||||||||||||
| (Reddy et al. 2002) Dai et al. 2005 |
Planomicrobium psychrophilum (synonym: Planococcus psychrophilus ) is a type of bacteria and is one of the Firmicutes . It was isolated by blue-green algae mats in the Antarctic dry valleys ( McMurdo Dry Valleys ). Extreme environmental conditions prevail here, determined by extreme cold and drought.
features
The cells of Planomicrobium psychrophilum are rod-shaped and pigmented orange. Spores are not formed. The bacterium is gram-positive and occurs individually. Planomicrobium psychrophilum is aerobic and psychrophilic , growth appears at temperatures between 2 and 30 ° C. Optimal growth takes place at 22 ° C and a pH value of 7. It tolerates NaCl values of 0 to 12%. Growth takes place at pH values between 6 and 12. It reacts negatively in the Voges-Proskauer test and in the methyl red test , and positively in the catalase and oxidase test. The enzymes lipase , β-galactosidase and gelatinase are present. The enzymes phosphatase and urease are not produced. The indole test is also negative. Dominant menaquinones are Mk-7 and MK-8. The phospholipids phosphatidylglycerins, diphosphatidylglycerins and phosphatidylethanolamines are present.
The GC content in the DNA is 44.5 mol percent.
metabolism
The bacterium can use various carbohydrates as the sole source of carbon, such as rhamnose , melibiose , trehalose and xylose . As the only source of carbon, however, are not sufficient z. B. arabinose , glucose and fructose . Nitrate is not reduced.
Systematics
Planomicrobium psychrophilum belongs to the Planococcaceae family . The species was first placed in the genus Planococcus as Planococcus psychrophilus in 2002 . In 2005 it was transferred to the genus Planomicrobium through the work of Xin Dai .
swell
Individual evidence
- ↑ a b c Paul de Vos, George Garrity, Dorothy Jones, Noel R. Krieg, Wolfgang Ludwig, Fred A. Rainey, Karl-Heinz Schleifer, William B. Whitman: Bergey's Manual of Systematic Bacteriology . Volume 3: The Firmicutes. Springer, New York et al. 2009, ISBN 978-0-387-95041-9 .
- ↑ a b c d G. Reddy J. Prakash M. Vairamani S. Prabhakar G. Matsumoto S. Shivaji: Planococcus antarcticus and Planococcus psychrophilus spp. nov. isolated from cyanobacterial mat samples collected from ponds in Antarctica . In: Extremophiles Volume 6, June 2002. ISSN 1431-0651
- ↑ Systematics according to JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) ( Memento of the original from November 4, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (As of December 29, 2018)
- ↑ Xin Dai, Ya-Nan Wang, Bao-Jun Wang, Shuang-Jiang Liu and Yu-Guang Zhou: Planomicrobium chinense sp. nov., isolated from coastal sediment, and transfer of Planococcus psychrophilus and Planococcus alkanoclasticus to Planomicrobium as Planomicrobium psychrophilum comb. nov. and Planomicrobium alkanoclasticum comb. nov. In: International journal of systematic and evolutionary microbiology. Volume 55, No. 2, 2005, pp. 699-702. doi: 10.1099 / ijs.0.63340-0
literature
- Paul de Vos, George Garrity, Dorothy Jones, Noel R. Krieg, Wolfgang Ludwig, Fred A. Rainey, Karl-Heinz Schleifer, William B. Whitman: Bergey's Manual of Systematic Bacteriology. Volume 3: The Firmicutes. Springer, New York et al. 2009, ISBN 978-0-387-95041-9 .
Web links
- JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) (as of December 29, 2018)