In:
International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 72, No. 2 ( 2022-02-18)
Abstract:
A novel micro-organism designated AS10 T was isolated from dry salt collected from Aveiro saltern in the north of Portugal. Cells were Gram-stain-positive, non-motile, non-endospore-forming, rod-shaped and aerobic. Strain AS10 T was characterized by long filaments of rod-shaped cells, presenting also coccoid cellular forms at the end of the filaments, unveiling some pleomorphism. Rod-shaped cells varied from 0.3 to 0.6 µm wide and from 0.6 to 2 µm long. Growth of AS10 T occurred at 15–40 °C (optimum, 20–30 °C), 0–10% (w/v) NaCl (optimum, 2%) and pH 4.5–11.0 (optimum, pH 8.0–11.0). The peptidoglycan type was A1ϒ-type with 3-hydroxy-diaminopimelic acid. The major fatty acids were C 16:0 , iso-C 14:0 , C 17:0 and C 14:0 . The major respiratory quinone was MK-9(H 4 ). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain AS10 T was similar to actinobacterial members of the class Nitriliruptoria , with Nitriliruptor alkaliphilus ANL-iso2 T being the closest relative the species with a sequence pairwise similarity of 91.21%. Average nucleotide identity, average amino acid identity and in silico DNA–DNA hybridization values between strain AS10 T and N. alkaliphilus ANL-iso2 T were 71.34, 53.57 and 18.90%, respectively. The genome DNA G+C content of AS10 T was 71.8 mol%. Based on genomic, phylogenetic, phenotypic and chemotaxonomic studies, we describe a new species of a novel genus represented by strain AS10 T (=LMG 31937 T =CECT 30148 T ) for which we propose the name Salsipaludibacter albus gen. nov., sp. nov. We also propose that this organism represents a new family named Salsipaludibacteraceae fam. nov. of a novel order named Salsipaludibacterales ord. nov.
Type of Medium:
Online Resource
ISSN:
1466-5026
,
1466-5034
DOI:
10.1099/ijsem.0.005228
Language:
English
Publisher:
Microbiology Society
Publication Date:
2022
detail.hit.zdb_id:
215062-1
detail.hit.zdb_id:
2056611-6
SSG:
12
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