Pontibacter saemangeumensis sp. nov., isolated from seawater

Kang, Ji; Joung, Yochan; Chun, Jeesun; Kim, Haneul; Joh, Kiseong; Jahng, Kwang Yeop

doi:10.1099/ijs.0.039867-0

Cited by 36 publications

(18 citation statements)

References 22 publications

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“…The genus Pontibacter belongs to the family Cytophagaceae , phylum Bacteroidetes , and was described by Nedashkovskaya et al (2005). At the time of writing, 10 species with validly published names have been described: Pontibacter actiniarum (type species; Nedashkovskaya et al , 2005), P. roseus (Suresh et al , 2006; Wang et al , 2010), P. akesuensis (Zhou et al , 2007), P. korlensis (Zhang et al , 2008), P. niistensis (Dastager et al , 2010), P. xinjiangensis (Wang et al , 2010), P. populi (Xu et al , 2012), P. lucknowensis (Dwivedi et al , 2013), P. saemangeumensis (Kang et al , 2013) and P. ramchanderi (Singh et al , 2013). An additional species, ‘ Pontibacter salisaro ’, was described by Joung et al (2011), but this name has not been validly published.…”

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Pontibacter toksunensis sp. nov., isolated from soil, and emended descriptions of Pontibacter roseus and Pontibacter akesuensis

Zhang

Zhu

Wei

et al. 2013

International Journal of Systematic and Evolutionary Microbiology

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A Gram-reaction-negative, rod-shaped, non-motile, red-pigmented bacterial strain, designated ZLD-7T, was isolated from a soil sample collected from an arid area in Xinjiang Province in north-west China, and characterized by using a polyphasic taxonomic approach. 16S rRNA gene sequence analysis showed that strain ZLD-7T was a member of the genus Pontibacter in the family Cytophagaceae , with sequence similarities of 93.7–96.2 % to type strains of other Pontibacter species. The only isoprenoid quinone of strain ZLD-7T was MK-7, and its major cellular fatty acids were summed feature 4 (anteiso-C17 : 1 B and/or iso-C17 : 1 I), iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The polar lipid profile consisted of phosphatidylethanolamine, one unidentified aminolipid and four unidentified polar lipids. The DNA G+C content was 47.8 mol%. On the basis of the evidence presented, it is proposed that strain ZLD-7T represents a novel species of the genus Pontibacter , for which the name Pontibacter toksunensis sp. nov. is proposed. The type strain is ZLD-7T ( = CCTCC AB 208003T = KCTC 23984T). Emended descriptions of Pontibacter roseus and Pontibacter akesuensis are also proposed.

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Pontibacter toksunensis sp. nov., isolated from soil, and emended descriptions of Pontibacter roseus and Pontibacter akesuensis

Zhang

Zhu

Wei

et al. 2013

International Journal of Systematic and Evolutionary Microbiology

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“…actiniarum and P . saemangeumensis from sea water [22], [25], P . roseus from occasional drainage system [26], P .…”

Section: Discussionmentioning

confidence: 99%

Pontibacter diazotrophicus sp. nov., a Novel Nitrogen-Fixing Bacterium of the Family Cytophagaceae

Zeng

Nie

et al. 2014

PLoS ONE

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Few diazotrophs have been found to belong to the family Cytophagaceae so far. In the present study, a Gram-negative, rod-shaped bacterium that forms red colonies, was isolated from sands of the Takalamakan desert. It was designated H4XT. Phylogenetic and biochemical analysis indicated that the isolate is a new species of the genus Pontibacter. The 16S rRNA gene of H4XT displays 94.2–96.8% sequence similarities to those of other strains in Pontibacter. The major respiratory quinone is menaquinone-7 (MK-7). The DNA G+C content is 46.6 mol%. The major cellular fatty acids are iso-C15∶0, C16∶1ω5c, summed feature 3 (containing C16∶1ω6c and/or C16∶1ω7c) and summed feature 4 (comprising anteiso-C17∶1B and/or iso-C17∶1I). The major polar lipids are phosphatidylethanolamine (PE), one aminophospholipid (APL) and some unknown phospholipids (PLs). It is interesting to see that this bacterium can grow very well in a nitrogen-free medium. PCR amplification suggested that the bacterium possesses at least one type of nitrogenase gene. Acetylene reduction assay showed that H4XT actually possesses nitrogen-fixing activity. Therefore, it can be concluded that H4XT is a new diazotroph. We thus referred it to as Pontibacter diazotrophicus sp. nov. The type strain is H4XT ( = CCTCC AB 2013049T = NRRL B-59974T).

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“…To determine the optimal pH for growth, cultures were incubated in MB at pH 3.0-12.0 at intervals of 1.0 pH unit for 7 days, using the buffer systems according to Lee et al [5]. The temperature range for growth was investigated at different temperatures (4,10,15,20,25,30,35,40, 45 and 50 °C) on MA. The Gram-stain test was performed using Gram-staining kit (Solarbio).…”

Section: Physiology and Chemotaxonomymentioning

confidence: 99%

Pontibacter mangrovi sp. nov., isolated from mangrove sediment

et al. 2020

International Journal of Systematic and Evolutionary Microbiology

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A Gram-stain-negative, short-rod-shaped and pink-pigmented bacterial strain (HB172049 T ) 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 100162 T (96.5 %) and Pontibacter korlensis X14-1 T (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-C 15 : 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 HB172049 T belongs to the genus Pontibacter and represents a novel species, for which the name Pontibacter mangrovi sp. nov. is proposed. The type strain is HB172049 T (=CGMCC 1.16729 T =JCM 33333 T ).

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Pontibacter saemangeumensis sp. nov., isolated from seawater

Cited by 36 publications

References 22 publications

Pontibacter toksunensis sp. nov., isolated from soil, and emended descriptions of Pontibacter roseus and Pontibacter akesuensis

Pontibacter toksunensis sp. nov., isolated from soil, and emended descriptions of Pontibacter roseus and Pontibacter akesuensis

Pontibacter diazotrophicus sp. nov., a Novel Nitrogen-Fixing Bacterium of the Family Cytophagaceae

Pontibacter mangrovi sp. nov., isolated from mangrove sediment

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