Isolation and characterization of a novel violacein-like pigment producing psychrotrophic bacterial species Janthinobacterium svalbardensis sp. nov

Ambrožič, Jerneja (avtor), Žgur-Bertok, Darja (avtor), Kostanjšek, Rok (avtor), Avguštin, Gorazd (avtor)

A bacterial strain designated JA-1, related to Janthinobacterium lividum, was isolated from glacier ice samples from the island Spitsbergen in the Arctic. The strain was tested for phenotypic traits and the most prominent appeared to be the dark red brown to black pigmentation different from the violet pigment of Janthinobacterium, Chromobacterium and Iodobacter. Phylogenetic analysis based on 16S rRNA gene sequences and DNA-DNA hybridization tests showed that strain JA-1 belongs to the genus Janthinobacterium but represents a novel lineage distinct from the two known species of this genus, J. lividum and Janthinobacterium agaricidamnosum. TheDNAG + C content of strain JA-1 was determined to be 62.3 mol %. The isolate is a psychrotrophic Gram negative bacterium, rod-shaped with rounded ends, containing intracellular inclusions and one polar flagellum. On the basis of the presented results strain JA-1 is proposed as the type strain of a novel species of the genus Janthinobacterium, for which the name Janthinobacterium svalbardensis sp. nov. is proposed (JA-1T = DSM25734,ZIM B637).

• Jezik: Angleški jezik
• Ključne besede: mikrobiologija, bakterije, psihrotrofne bakterije, Janthinobacterium svalbardensis, pigmenti
• Vrsta gradiva: Delo ni kategorizirano
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Leto izida: 2013
• Št. strani: Str. 763-769
• Številčenje: Vol. 103, issue 4
• PID: 20.500.12556/RUL-36579
• UDK: 579
• ISSN pri članku: 0003-6072
• DOI: 10.1007/s10482-012-9858-0
• COBISS.SI-ID: 3147912
• Datum objave v RUL: 10.07.2015

Gradivo je del revije

• Naslov: Antonie van Leeuwenhoek
• Skrajšan naslov: Antonie van Leeuwenhoek
• Založnik: Kluwer Academic Publishers
• ISSN: 0003-6072
• COBISS.SI-ID: 5131015