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

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

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).

• Language: English
• Keywords: mikrobiologija, bakterije, psihrotrofne bakterije, Janthinobacterium svalbardensis, pigmenti
• Work type: Not categorized
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Year: 2013
• Number of pages: Str. 763-769
• Numbering: Vol. 103, issue 4
• PID: 20.500.12556/RUL-36579
• UDC: 579
• ISSN on article: 0003-6072
• DOI: 10.1007/s10482-012-9858-0
• COBISS.SI-ID: 3147912
• Publication date in RUL: 10.07.2015

Record is a part of a journal

• Title: Antonie van Leeuwenhoek
• Shortened title: Antonie van Leeuwenhoek
• Publisher: Kluwer Academic Publishers
• ISSN: 0003-6072
• COBISS.SI-ID: 5131015