Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2011 Apr;61(Pt 4):979-984.
doi: 10.1099/ijs.0.021022-0. Epub 2010 May 28.

Arthrobacter livingstonensis sp. nov. and Arthrobacter cryotolerans sp. nov., salt-tolerant and psychrotolerant species from Antarctic soil

Lars Ganzert  1 , Felizitas Bajerski  1 , Kai Mangelsdorf  2 , André Lipski  3 , Dirk Wagner  1
Affiliations

Arthrobacter livingstonensis sp. nov. and Arthrobacter cryotolerans sp. nov., salt-tolerant and psychrotolerant species from Antarctic soil

Lars Ganzert et al. Int J Syst Evol Microbiol. 2011 Apr.

Abstract

Two novel cold-tolerant, Gram-stain-positive, motile, facultatively anaerobic bacterial strains, LI2(T) and LI3(T), were isolated from moss-covered soil from Livingston Island, Antarctica, near the Bulgarian station St Kliment Ohridski. A rod-coccus cycle was observed for both strains. 16S rRNA gene sequence analysis revealed an affiliation to the genus Arthrobacter, with the highest similarity to Arthrobacter stackebrandtii and Arthrobacter psychrochitiniphilus for strain LI2(T) (97.8 and 97.7 % similarity to the respective type strains) and to Arthrobacter kerguelensis and Arthrobacter psychrophenolicus for strain LI3(T) (97.4 and 97.3 % similarity to the respective type strains). The growth temperature range was -6 to 28 °C for LI2(T) and -6 to 24 °C for LI3(T), with an optimum at 16 °C for both strains. Growth occurred at 0-10 % (w/v) NaCl, with optimum growth at 0-1 % (w/v) for LI2(T) and 0.5-3 % (w/v) for LI3(T). The pH range for growth was pH 4-9.5 with an optimum of pH 8 for LI2(T) and pH 6.5 for LI3(T). The predominant fatty acids were anteiso-C(15 : 0), C(18 : 0) and anteiso-C(17 : 0) for LI2(T) and anteiso-C(15 : 0) and C(18 : 0) for LI3(T). Physiological and biochemical tests clearly differentiated strain LI2(T) from A. stackebrandtii and A. psychrochitiniphilus and strain LI3(T) from A. kerguelensis and A. psychrophenolicus. Therefore, two novel species within the genus Arthrobacter are proposed: Arthrobacter livingstonensis sp. nov. (type strain LI2(T) = DSM 22825(T) = NCCB 100314(T)) and Arthrobacter cryotolerans sp. nov. (type strain LI3(T) = DSM 22826(T) = NCCB 100315(T)).

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

Publication types

MeSH terms

Associated data

LinkOut - more resources