Affiliation:
1. Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bioresources, Haikou 571101, PR China
2. Institute of Tropical Bioscience and Biotechnology, Hainan Academy of Tropical Agricultural Resource, CATAS, Haikou 571101, PR China
Abstract
A Gram-stain-negative, short-rod-shaped and pink-pigmented bacterial strain (HB172049T) was isolated from mangrove sediment. Cells grew at 10–45 °C (optimum, 30 °C), pH 6.0–9.0 (optimum, pH 7.0) and with 0.5–9.0 % (w/v) NaCl (optimum, 2–5 %). Analysis of the 16S rRNA gene sequence revealed that the isolate had highest sequence similarities to
Pontibacter mucosus
DSM 100162T (96.5 %) and
Pontibacter korlensis
X14-1T (96.5 %). The values of average nucleotide identity, average amino acid identity and digital DNA–DNA hybridization between the isolate and its close neighbours were, respectively, less than 80.1, 81.7 and 23.2 %. Chemotaxonomic analysis indicated that the sole respiratory quinone was MK-7 and the predominant cellular fatty acids were summed feature 4 and iso-C15 : 0 (42.2 and 24.6 %, respectively). The major polar lipids consisted of phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, one unidentified glycolipid, one unidentified phospholipid, one unidentified aminophospholipid and two unidentified polar lipids. The genomic DNA G+C content was 52.6 mol%. Based on polyphasic taxonomic characterization, it is proposed that strain HB172049T belongs to the genus
Pontibacter
and represents a novel species, for which the name Pontibacter mangrovi sp. nov. is proposed. The type strain is HB172049T (=CGMCC 1.16729T=JCM 33333T).
Funder
Financial Fund of the Ministry of Agriculture and Rural Affairs of China
Central Public-interest Scientific Institution Basal Research Fund of CATAS from Chinese Government
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
6 articles.
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