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Arch Microbiol. 2019 Nov 6. doi: 10.1007/s00203-019-01755-4. [Epub ahead of print]

Genome sequences of two Antarctic strains of Pseudomonas prosekii: insights into adaptation to extreme conditions.

Author information

1
Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A6, 625 00, Brno, Czech Republic.
2
Department of Immunology, Veterinary Research Institute, Hudcova 70, 621 00, Brno, Czech Republic.
3
Department of Experimental Biology, Faculty of Science, Czech Collection of Microorganisms, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
4
Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A6, 625 00, Brno, Czech Republic. dsmajs@med.muni.cz.

Abstract

Pseudomonas prosekii is a recently described species isolated exclusively from James Ross Island close to the Antarctic Peninsula at 64° south latitude. Here, we present two P. prosekii genome sequences and their analyses with respect to phylogeny, low temperature adaptation, and potential biotechnological applications. The genome of P. prosekii P2406 comprised 5,896,482 bp and 5324 genes (GC content of 59.71%); the genome of P. prosekii P2673 consisted of 6,087,670 bp and 5511 genes (GC content of 59.50%). Whole genome sequence comparisons confirmed a close relationship between both investigated strains and strain P. prosekii LMG 26867T. Gene mining revealed the presence of genes involved in stress response, genes encoding cold shock proteins, oxidative stress proteins, osmoregulation proteins, genes for the synthesis of protection molecules, and siderophores. Comparative genome analysis of P. prosekii and P. aeruginosa PAO1 highlighted differences in genome content between extremophile species and a mesophilic opportunistic pathogen.

KEYWORDS:

Antarctica; Cold adaptation; Extremophile; James Ross Island; Pseudomonas prosekii; Psychrotolerant

PMID:
31691844
DOI:
10.1007/s00203-019-01755-4

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