Topic
Muricauda flavescens
About: Muricauda flavescens is a research topic. Over the lifetime, 5 publications have been published within this topic receiving 126 citations.
Papers
TL;DR: On the basis of phenotypic and genotypic data, strain Ar-22(T), isolated from a seawater sample collected from the western part of Prydz Bay, near Cape Darnley, Antarctica, represents a novel species of the genus Muricauda.
Abstract: A Gram-stain-negative, rod-shaped bacterium with appendages, designated Ar-22T, was isolated from a seawater sample collected from the western part of Prydz Bay, near Cape Darnley, Antarctica. Strain Ar-22T grew optimally at 35 °C, at pH 7.5 and in the presence of 1–3 % (w/v) NaCl. The isolate was positive for casein, gelatin and Tween 20 decomposition and negative for H2S production and indole formation. Chemotaxonomic analysis showed that MK-6 was the major isoprenoid quinone and phosphatidylethanolamine was the major polar lipid. The major fatty acids were iso-C17 : 0 3-OH, iso-C15 : 1 G, iso-C15 : 0 and C16 : 1ω7c/iso-C15 : 0 2OH. The genomic DNA G+C content was 44.8 mol%. Comparative 16S rRNA gene sequence analysis revealed that strain Ar-22T is closely related to members of the genus
Muricauda
, sharing 94.2–97.3 % sequence similarity with the type strains of species of the genus
Muricauda
and being most closely related to the
Muricauda aquimarina
. Phylogenetic analysis based on the 16S rRNA gene sequence comparison confirmed that strain Ar-22T formed a deep lineage with
Muricauda flavescens
. Sequence similarity between strain Ar-22T and
Muricauda ruestringensis
DSM 13258T, the type species of the genus
Muricauda
, was 96.9 %. Strain Ar-22T exhibited mean DNA–DNA relatedness values of 40.1 %, 49.4 % and 25.7 % to
M. aquimarina
JCM 11811T,
M. flavescens
JCM 11812T and
Muricauda lutimaris
KCTC 22173T, respectively. On the basis of phenotypic and genotypic data, strain Ar-22T represents a novel species of the genus
Muricauda
, for which the name
Muricauda
antarctica sp. nov. (type strain Ar-22T = CGMCC 1.12174T = JCM 18450T) is proposed.
32 citations
TL;DR: A novel Gram-stain-negative, heterotrophic, moderate halophilic and strictly aerobic bacterium, strain 105T, was isolated from a tidal flat of Taean in Korea as mentioned in this paper.
Abstract: A novel Gram-stain-negative, heterotrophic, moderate halophilic and strictly aerobic bacterium, strain 105T, was isolated from a tidal flat of Taean in Korea. Cells were catalase- and oxidase-positive long rods that showed gliding motility. Optimum temperature, pH and salinity for the growth of strain 105T were observed at 30–37 °C, at pH 7.0–7.5, and in the presence of 2–4 % (w/v) NaCl, respectively. The major cellular fatty acids were iso-C15 : 1 G, iso-C15 : 0 and iso-C17 : 0 3-OH. Phosphatidylethanolamine and five unidentified lipids were identified as the major polar lipids. The genomic DNA G+C content of strain 105T was 42.4 mol% and MK-6 was detected as the predominant isoprenoid quinone. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 105T formed a phyletic lineage with members of the genus
Muricauda
. Strain 105T was most closely related to
Muricauda aquimarina
SW-63T (97.6 %),
Muricauda beolgyonensis
BB-My12T (97.5 %),
Muricauda lutimaris
SMK-108T (97.5 %),
Muricauda ruestringensis
B1T (97.3 %),
Muricauda flavescens
CL-SS4T (97.2 %) and
Muricauda olearia
(96.2 %). The DNA–DNA relatedness values of strain 105T with
M. aquimarina
JCM 11811T,
M. beolgyonensis
KCTC 23501T,
M. lutimaris
KCTC 22173T,
M. ruestringensis
DSM 13258T and
M. flavescens
JCM 11812T were 17.2±6.0, 8.7±2.2, 3.7±0.5, 11.0±1.9 and 7.1±1.3 %, respectively. On the basis of phenotypic and molecular features, strain 105T represents a novel species of the genus
Muricauda
, for which the name
Muricauda
taeanensis sp. nov. is proposed. The type strain is 105T ( = KACC 16195T = JCM 17757T).
30 citations
TL;DR: Enzymic activity profiles, cell morphology and DNA G+C content differentiated the novel bacterium from the most closely related members of the genus Muricauda.
Abstract: A Gram-stain-negative, strictly aerobic, non-flagellated, non-gliding, oxidase- and catalase-positive, rod-shaped and orange-pigmented bacterium with appendages, designated strain SW027T, was isolated from a surface seawater sample collected from the South Pacific Gyre (26° 29′ S 137° 56′ W) during the Integrated Ocean Drilling Program (IODP) Expedition 329. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SW027T shared the highest sequence similarity with members of the genus Muricauda (94.3–92.7 %), exhibiting 94.3 % sequence similarity to Muricauda flavescens SW-62T. Optimal growth occurred in the presence of 3 % (w/v) NaCl, at pH 7.0 and at 37 °C. The DNA G+C content of strain SW027T was 42.7 mol%. The major fatty acids were iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH. The major respiratory quinone was menaquinone-6. The major polar lipids were phosphatidylethanolamine and two unidentified lipids. Enzymic activity profiles, cell morphology and DNA G+C content differentiated the novel bacterium from the most closely related members of the genus Muricauda. On the basis of the polyphasic analyses, strain SW027T is considered to represent a novel species of the genus Muricauda, for which the name Muricauda pacifica sp. nov. is proposed. The type strain is SW027T ( = JCM 17861T = LMG 26637T).
25 citations
TL;DR: Phylogenetic, physiological, biochemical and morphological analysis suggested that this strain represents a novel species of genus Muricauda, and the name MuricAuda iocasae sp.
Abstract: In this study, we reported a novel yellow-pigmented, Gram-stain-negative bacterium with appendages, designated as strain L2T, isolated from the South China Sea. Growth of strain L2T occurred at 22–40 °C (optimum, 37 °C), pH 6.0–10.0 (pH 7.0) and with 0–8 % (w/v) NaCl (2 %). Phylogenetic analysis based on its 16S rRNA gene sequence indicated that strain L2T belonged to the genus
Muricauda
. The close phylogenetic neighbours of strain L2T were
Muricauda marina
H19-56T,
Muricauda ruestringensis
B1T,
Muricauda antarctica
Ar-22T,
Muricauda taeanensis
105T and
Muricauda flavescens
SW-62T (96.4 %, 95.9 %, 95.9 %, 95.8 % and 94.5 % identities, respectively). The genomic DNA G+C content of strain L2T was 51.3±4.6 mol%. Theg major isoprenoid quinone was MK-6 (100.0 %). The polar lipids contained phosphatidylethanolamine and two unidentified lipids. The major fatty acids (>10 % of total fatty acids) were iso-C17 : 0 3-OH (30.3 %), iso-C15 : 1 G (20.6 %) and iso-C15 : 0 (17.6 %). Phylogenetic, physiological, biochemical and morphological analysis suggested that this strain represents a novel species of genus
Muricauda
, and the name Muricauda iocasae sp. nov. is proposed with the type species L2T (=CCTCC AB 2017193 T=KCTC 62196T).
16 citations
TL;DR: On the basis of phenotypic and phylogenetic data and genomic distinctiveness, strainsSW-62(T) and SW-74 and strains SW-63(T), SW-72 were placed in the genus Muricauda as two distinct novel species, for which the names MuricAuda flavescens sp.
Abstract: Four Gram-negative, non-spore-forming, slightly halophilic rods (strains SW-62(T), SW-74, SW-63(T) and SW-72) with appendages were isolated from a salt lake near Hwajinpo Beach on the East Sea in Korea, and subjected to a polyphasic taxonomic analysis. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains SW-62(T), SW-74, SW-63(T) and SW-72 formed a coherent cluster with Muricauda ruestringensis. Strains SW-62(T) and SW-74 had the same 16S rRNA gene sequence, as did strains SW-63(T) and SW-72. The level of 16S rRNA gene sequence similarity between strains SW-62(T) and SW-63(T) was 97.0 %. Strains SW-62(T) and SW-63(T) exhibited 16S rRNA gene similarity levels of 96.5 and 98.3 %, respectively, with respect to M. ruestringensis DSM 13258(T). The predominant isoprenoid quinone found in the four isolates and M. ruestringensis DSM 13258(T) was MK-6. The four strains contained iso-C(17 : 0) 3-OH, iso-C(15 : 1) and iso-C(15 : 0) as the major fatty acids. Their DNA G + C contents were 44.1-45.4 mol%. The levels of DNA-DNA relatedness indicated that strains SW-62(T) and SW-74 and strains SW-63(T) and SW-72 were members of two species that were different from M. ruestringensis. On the basis of phenotypic and phylogenetic data and genomic distinctiveness, strains SW-62(T) and SW-74 and strains SW-63(T) and SW-72 were placed in the genus Muricauda as two distinct novel species, for which the names Muricauda flavescens sp. nov. (type strain, SW-62(T) = KCCM 41645(T) = JCM 11812(T)) and Muricauda aquimarina sp. nov. (type strain, SW-63(T) = KCCM 41646(T) = JCM 11811(T)), respectively, are proposed.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 1 |
| 2015 | 1 |
| 2013 | 2 |
| 2005 | 1 |