Polymorphobacter megasporae sp. nov., isolated from an Antarctic lichen. Issue 9 (27th September 2022)

• Record Type: Journal Article
• Authors: Noh, Hyun-Ju; Park, Yerin; Yang, Junwon; Jang, Seonghan; Lee, Hyoungseok; Lee, Yung Mi
• Is Part Of: International journal of systematic and evolutionary microbiology. Volume 72:Issue 9(2022)
• Publication Date: 2022-09-27
• Subjects: Antarctica -- novel species -- Polymorphobacter megasporae -- polyphasic taxonomy -- lichen; Microbiology -- Periodicals; Microbiology -- Classification -- Periodicals; 579
• DOI: 10.1099/ijsem.0.005535
• Languages: English
• ISSNs: 1466-5026

Abstract

Abstract : A Gram-stain-negative, aerobic, orange-coloured, rod-shaped and non-motile bacterial strain, PAMC 29362 T, was isolated from an Antarctic lichen, Megaspora verrucosa . Phylogenetic and phylogenomic analyses indicated that strain PAMC 29362 T belongs to the genus Polymorphobacter and was most closely related to Polymorphobacter arshaanensis (97.0% of 16S rRNA gene similarity), Polymorphobacter fuscus (96.3 %), Polymorphobacter multimanifer (95.3 %) and Polymorphobacter glacialis (95.2 %). Genomic relatedness analyses showed that strain PAMC 29362 T is clearly distinguished from type strains of the genus Polymorphobacter based on values of average nucleotide identity (<74.3 %) and digital DNA–DNA hybridization (<20.4 %). The genomic DNA G+C content of PAMC 29362 T was 65.5 %. The major fatty acids (>10 %) were summed feature 8 (C18:1 ω 7 c ; 38.5 %) and summed feature 3 (C16:1 ω 7 c and/or C16:1 ω 6 c ; 31.5 %). The major respiratory quinone was Q-10. Based on the results of phylogenetic, genome-based relatedness and physiological analyses, strain PAMC 29362 T is proposed to represent a novel species of the genus Polymorphobacter, with the name Polymorphobacter megasporae sp. nov. The type strain is PAMC 29362 T (=KCTC 82 578 T =JCM 34545 T )