Brevibacterium profundi sp. nov., isolated from deep-sea sediment of the Western Pacific Ocean.

Brevibacterium profundi sp. nov., isolated from deep-sea sediment of the Western Pacific Ocean.
Int J Syst Evol Microbiol. 2020 Sep 23;:
Authors: Pei S, Xie F, Niu S, Ma L, Zhang R, Zhang G
Abstract
A new Gram-stain-positive, aerobic, non-motile and rod-shaped actinobacterium, designated O1T, was isolated from a deep-sea sediment of the Western Pacific Ocean. Strain O1T showed optimal growth at 30 °C, between pH 6.0 and 8.0, and in the presence of 1-5 % (w/v) NaCl. The predominant menaquinone was MK-8 (H2), and anteiso-C15 : 0 and anteiso-C17 : 0 were the major fatty acids. The diagnostic diamino acid in the cell-wall peptidoglycan was meso-diaminopimelic acid. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and one unknown glycolipid. The DNA G+C content of strain O1T was 64.9 mol% and the genome size was 4.17 Mb. Based on a similarity search and phylogenetic analysis of the 16S rRNA gene sequence, strain O1T belonged to the genus Brevibacterium. The values of average nucleotide identity and in silico DNA-DNA hybridization between strain O1T and its close relatives were well below the thresholds used for the delineation of a new species. On the basis of the morphological and chemotaxonomic characteristics, as well as the genotypic data, it is proposed that strain O1T represents a novel species of the genus Brevibacterium, for which the name Brevibacterium profundi sp. nov. is proposed. The typ...

Source: International Journal of Systematic and Evolutionary Microbiology - September 22, 2020 Category: Microbiology Authors: Pei S, Xie F, Niu S, Ma L, Zhang R, Zhang G Tags: Int J Syst Evol Microbiol Source Type: research