scholarly journals Marisediminicola antarctica gen. nov., sp. nov., an actinobacterium isolated from the Antarctic

2010 ◽  
Vol 60 (11) ◽  
pp. 2535-2539 ◽  
Author(s):  
Hui-Rong Li ◽  
Yong Yu ◽  
Wei Luo ◽  
Yin-Xin Zeng
Keyword(s):  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Intertidal Sediment ◽  
Rrna Gene ◽  
Optimum Growth ◽  
Temperature Range ◽  
Zhongshan Station ◽  
Diamino Acid ◽  
Ph Range ◽  
The Antarctic

Strain ZS314T was isolated from a sandy intertidal sediment sample collected from the coastal area off the Chinese Antarctic Zhongshan Station, east Antarctica (6 ° 22′ 13″ S 7 ° 21′ 41″ E). The cells were Gram-positive, motile, short rods. The temperature range for growth was 0–26 °C and the pH for growth ranged from 5 to 10, with optimum growth occurring within the temperature range 18–23 °C and pH range 6.0–8.0. Growth occurred in the presence of 0–6 % (w/v) NaCl, with optimum growth occurring in the presence of 2–4 % (w/v) NaCl. Strain ZS314T had MK-10 as the major menaquinone and anteiso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0 as major fatty acids. The cell-wall peptidoglycan type was B2β with ornithine as the diagnostic diamino acid. The major polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The genomic DNA G+C content was approximately 67 mol%. Phylogenetic analysis based on 16S rRNA gene sequence similarity showed that strain ZS314T represents a new lineage in the family Microbacteriaceae. On the basis of the phylogenetic analyses and phenotypic characteristics, a new genus, namely Marisediminicola gen. nov., is proposed, harbouring the novel species Marisediminicola antarctica sp. nov. with the type strain ZS314T (=DSM 22350T =CCTCC AB 209077T).

scholarly journals Nocardioides marinus sp. nov.

2007 ◽  
Vol 57 (4) ◽  
pp. 775-779 ◽  
Author(s):  
Dong Han Choi ◽  
Hye Min Kim ◽  
Jae-Hoon Noh ◽  
Byung Cheol Cho
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
16S Rrna Gene Sequences ◽  
Diamino Acid ◽  
Ph Range ◽  
Type Strains

A Gram-positive, slightly halophilic, rod-shaped bacterium, designated CL-DD14T, was isolated from seawater of the East Sea, Korea. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain CL-DD14T belongs to the genus Nocardioides. Levels of 16S rRNA gene sequence similarity between strain CL-DD14T and the type strains of recognized species of the genus Nocardioides were low (94.1–97.1 %). Strain CL-DD14 T grew over the pH range 6–9 and temperature range 10–40 °C. The strain grew at NaCl concentrations of 0.5–8 % (w/v) with optimum growth at 1–3 % and no growth was observed after 3 weeks on nutrient agar without any salts. It contained ll-diaminopimelic acid as the diamino acid in the cell wall. The major isoprenoid quinone was MK-8(H4) and the major cellular fatty acids were iso-C16 : 0 and 10-methyl C17 : 0. The DNA G+C content was 72.9 mol%. On the basis of phenotypic and phylogenetic data, strain CL-DD14T is considered to represent a novel species of the genus Nocardioides, for which the name Nocardioides marinus sp. nov. is proposed. The type strain is CL-DD14T (=KCCM 42321T=DSM 18248T).

scholarly journals Aurantimicrobium minutum gen. nov., sp. nov., a novel ultramicrobacterium of the family Microbacteriaceae, isolated from river water

2015 ◽  
Vol 65 (Pt_11) ◽  
pp. 4072-4079 ◽  
Author(s):  
Ryosuke Nakai ◽  
Tomoya Baba ◽  
Hironori Niki ◽  
Miyuki Nishijima ◽  
Takeshi Naganuma
Keyword(s):  
River Water ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Phenotypic Characteristics ◽  
High Sequence Similarity ◽  
The Family ◽  
Western Japan ◽  
Unidentified Species ◽  
Diamino Acid ◽  
Ph Range

A Gram-stain-positive, aerobic, non-motile, curved (selenoid), rod-shaped actinobacterium, designated KNCT, was isolated from the 0.2 μm-filtrate of river water in western Japan. Cells of strain KNCT were ultramicrosized (0.04–0.05 μm3). The strain grew at 15–37 °C, with no observable growth at 10 °C or 40 °C. The pH range for growth was 7–9, with weaker growth at pH 10. Growth was impeded by the presence of NaCl at concentrations greater than 1 %. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain KNCT showed relatively high sequence similarity (97.2 %) to Alpinimonas psychrophila Cr8-25T in the family Microbacteriaceae. However, strain KNCT formed an independent cluster with cultured, but as-yet-unidentified, species and environmental clones on the phylogenetic tree. The major cellular fatty acids were anteiso-C15 : 0 (41.0 %), iso-C16 : 0 (21.8 %), C16 : 0 (18.0 %) and anteiso-C17 : 0 (12.9 %), and the major menaquinones were MK-11 (71.3 %) and MK-12 (13.6 %). The major polar lipids were phosphatidylglycerol and two unknown glycolipids. The cell-wall muramic acid acyl type was acetyl. The peptidoglycan was B-type, and contained 3-hydroxyglutamic acid, glutamic acid, aspartic acid, glycine, alanine and lysine, with the latter being the diagnostic diamino acid. The G+C content of the genome was unusually low for actinobacteria (52.1 mol%), compared with other genera in the family Microbacteriaceae. Based on the phenotypic characteristics and phylogenetic evidence, strain KNCT represents a novel species of a new genus within the family Microbacteriaceae, for which the name Aurantimicrobium minutum gen. nov., sp. nov. is proposed. The type strain of the type species is KNCT ( = NBRC 105389T = NCIMB 14875T).

scholarly journals Sulfurisoma sediminicola gen. nov., sp. nov., a facultative autotroph isolated from a freshwater lake

2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1587-1592 ◽  
Author(s):  
Hisaya Kojima ◽  
Manabu Fukui
Keyword(s):  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Sulfur Oxidation ◽  
Freshwater Lake ◽  
Rrna Gene ◽  
Optimum Growth ◽  
Phenotypic Properties ◽  
Content Type ◽  
Link Type ◽  
Bacterium Strain

A novel facultatively autotrophic bacterium, strain BSN1T was isolated from sediment of a freshwater lake in Japan. The cells were rod-shaped, motile and Gram-stain-negative. As sole energy sources for autotrophic growth, the strain oxidized thiosulfate, elemental sulfur and hydrogen. Strain BSN1T was a facultative anaerobe utilizing nitrate as an electron acceptor. Growth was observed at temperatures lower than 34 °C, and the optimum growth was observed at 30–32 °C. The range of pH for growth was pH 6.8–8.8, and the optimum pH was pH 7.8–8.1. The optimum growth of the isolate occurred at concentrations of NaCl less than 50 mM. The G+C content of genomic DNA was 67 mol%. The major component in the fatty acid profile of strain BSN1T grown on fumarate was summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH). Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain was a member of the class Betaproteobacteria , and it showed the highest sequence similarity with Georgfuchsia toluolica G5G6T (96.2 %). Phylogenetic analyses were also performed on genes involved in sulfur oxidation. On the basis of its phylogenetic and phenotypic properties, strain BSN1T ( = DSM 26916T = NBRC 109412T) is proposed as the type strain of a novel species of a novel genus, Sulfurisoma sediminicola gen. nov., sp. nov.

Reclassification of Marinococcus albus Hao et al. 1985 as Salimicrobium album gen. nov., comb. nov. and Bacillus halophilus Ventosa et al. 1990 as Salimicrobium halophilum comb. nov., and description of Salimicrobium luteum sp. nov.

2007 ◽  
Vol 57 (10) ◽  
pp. 2406-2411 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Tae-Kwang Oh
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
New Genus ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Phenotypic Properties ◽  
Separate Species ◽  
Diamino Acid

A Gram-positive, non-motile, coccoid-shaped, non-spore-forming halophilic bacterial strain, BY-5T, was isolated from a marine solar saltern in Korea and its taxonomic position was investigated by using a polyphasic approach. The novel strain grew optimally at 37 °C and in the presence of 10 % (w/v) NaCl. Strain BY-5T had meso-diaminopimelic acid as the diagnostic diamino acid in the cell-wall peptidoglycan, MK-7 as the predominant menaquinone and anteiso-C15 : 0, iso-C15 : 0, anteiso-C17 : 0 and iso-C17 : 0 as the major fatty acids. The DNA G+C content was 47.9 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain BY-5T formed a coherent cluster with Bacillus halophilus and Marinococcus albus. Strain BY-5T exhibited 16S rRNA gene sequence similarity values of 98.7 and 97.4 % to the type strains of B. halophilus and M. albus, respectively. Strain BY-5T was distinguished from B. halophilus and M. albus by several phenotypic properties and DNA–DNA relatedness data. On the basis of the combined chemotaxonomic and phylogenetic data, it is proposed that M. albus, B. halophilus and strain BY-5T should be placed in a new genus as three separate species. Marinococcus albus and Bacillus halophilus are reclassified in a new genus, Salimicrobium gen. nov., as Salimicrobium album comb. nov. and Salimicrobium halophilum comb. nov., respectively. The type species of the new genus is Salimicrobium album. Strain BY-5T (=KCTC 3989T=CIP 108918T) is placed in the genus Salimicrobium as a novel species Salimicrobium luteum sp. nov.

scholarly journals Humicoccus flavidus gen. nov., sp. nov., isolated from soil

2007 ◽  
Vol 57 (1) ◽  
pp. 56-59 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Seo-Youn Jung ◽  
Tae-Kwang Oh
Keyword(s):  
Fatty Acids ◽  
Cell Wall ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Polar Lipid Profile ◽  
Diamino Acid

A Gram-positive, non-motile, spherical, non-spore-forming bacterial strain, DS-52T, was isolated from soil from Dokdo, Korea, and its taxonomic position was investigated by using a polyphasic approach. It grew optimally at 25 °C and pH 6.0–7.0. Strain DS-52T had meso-diaminopimelic acid as the diagnostic diamino acid in the cell-wall peptidoglycan, and galactose, mannose, xylose and rhamnose as whole-cell sugars. It contained MK-8(H4) and MK-9(H4) as the predominant menaquinones and anteiso-C15 : 0, iso-C15 : 0 and C17 : 0 as major fatty acids. Major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidyldimethylethanolamine. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain DS-52T is most closely related to the genus Nakamurella of the suborder Frankineae. Strain DS-52T exhibited 16S rRNA gene sequence similarity values of 96.5 % to Nakamurella multipartita JCM 9543T and 92.0–93.9 % to other members of the suborder Frankineae. The diagnostic diamino acid type and polar lipid profile of strain DS-52T were the same as those of the genus Nakamurella. However, strain DS-52T could be clearly distinguished from the genus Nakamurella by differences in predominant menaquinones, major fatty acids and cell-wall sugars. Accordingly, based on combined phenotypic, chemotaxonomic and phylogenetic data, strain DS-52T (=KCTC 19127T=CIP 108919T) is proposed as the type strain of a novel species in a new genus, Humicoccus flavidus gen. nov., sp. nov.

scholarly journals Marinibacillus campisalis sp. nov., a moderate halophile isolated from a marine solar saltern in Korea, with emended description of the genus Marinibacillus

2004 ◽  
Vol 54 (4) ◽  
pp. 1317-1321 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
In-Gi Kim ◽  
Peter Schumann ◽  
Tae-Kwang Oh ◽  
Yong-Ha Park
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Solar Saltern ◽  
Optimum Growth ◽  
Marine Solar Saltern ◽  
Moderate Halophile

A Gram-positive, motile, round to ellipsoidal, endospore-forming, rod-shaped bacterial strain, SF-57T, was isolated from a marine solar saltern in Korea. This organism grew between 4 and 39 °C, with optimum growth at 30 °C. Strain SF-57T grew in the presence of 0·5–15·0 % NaCl, with optimum growth at 2–3 % NaCl. The peptidoglycan type of strain SF-57T was A1α linked directly through l-Lys. In strain SF-57T, menaquinone-7 (MK-7) was the predominant isoprenoid quinone and anteiso-C15 : 0 was the major fatty acid. The DNA G+C content was 41·8 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SF-57T formed a coherent cluster with Marinibacillus marinus, with a bootstrap resampling value of 100 %. The level of 16S rRNA gene sequence similarity between strain SF-57T and M. marinus DSM 1297T was 98·9 %. The mean DNA–DNA relatedness level between strain SF-57T and the type strain of M. marinus was 20·6 %. Based on phenotypic properties, phylogenetic analyses and genomic data, strain SF-57T merits placement in the genus Marinibacillus as a representative of a novel species, for which the name Marinibacillus campisalis sp. nov. is proposed. The type strain is SF-57T (=KCCM 41644T=JCM 11810T).

scholarly journals Brevibacterium samyangense sp. nov., an actinomycete isolated from a beach sediment

2006 ◽  
Vol 56 (8) ◽  
pp. 1889-1892 ◽  
Author(s):  
Soon Dong Lee
Keyword(s):  
Gene Sequence ◽  
Novel Species ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Beach Sediment ◽  
Actinomycete Strain ◽  
Diamino Acid ◽  
Type Strains

A novel actinomycete, strain SST-8T, was isolated from sand sediment of Samyang Beach in Jeju, Korea, and subjected to a polyphasic taxonomic study. The organism, which produced opaque, circular, yellow colonies, with a coryneform morphology, showed the following chemotaxonomic characteristics: meso-diaminopimelic acid as the diamino acid in the peptidoglycan, MK-8(H2) as the major menaquinone, phosphatidylglycerol as the only polar lipid, anteiso-C15 : 0 and anteiso-C17 : 0 as major fatty acids and a DNA G+C content of 70.7 mol%. The combination of morphological and chemotaxonomic features supported its classification in the genus Brevibacterium. Phylogenetic analyses, based on 16S rRNA gene sequence studies, showed that strain SST-8T formed an intermediate branch between the Brevibacterium luteolum/Brevibacterium otitidis and Brevibacterium mcbrellneri/Brevibacterium paucivorans clusters. Sequence similarity calculations based on a neighbour-joining analysis revealed that the closest relatives of strain SST-8T were the type strains of B. paucivorans (96.6 %), B. luteolum (96.5 %), B. mcbrellneri (96.3 %), Brevibacterium avium (96.0 %) and B. otitidis (95.9 %). Based on a broad set of phenotypic and genetic data, it was evident that the strain represents a novel species of the genus Brevibacterium. The name Brevibacterium samyangense sp. nov. is proposed, with SST-8T (=NRRL B-41420T=KCCM 42316T) as the type strain.

scholarly journals Aquipuribacter nitratireducens sp. nov., isolated from a soil sample of a mud volcano

2015 ◽  
Vol 65 (Pt_8) ◽  
pp. 2391-2396 ◽  
Author(s):  
T.N.R. Srinivas ◽  
P. Anil Kumar ◽  
M. Tank ◽  
B. Sunil ◽  
Manasa Poorna ◽  
...  
Keyword(s):  
Soil Sample ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Pairwise Alignment ◽  
Diaminopimelic Acid ◽  
Mud Volcano ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Gene Sequence Analysis ◽  
Diamino Acid

A novel Gram-stain-positive, coccoid, non-motile bacterium, designated strain AMV4T, was isolated from a soil sample collected from a mud volcano located in the Andaman Islands, India. The colony was pale orange. Strain AMV4T was positive for oxidase, aesculinase, lysine decarboxylase and ornithine decarboxylase activities and negative for amylase, catalase, cellulase, protease, urease and lipase activities. 16S rRNA gene sequence analysis indicated that strain AMV4T was a member of the order Actinomycetales and was closely related to Aquipuribacter hungaricus with a sequence similarity of 97.13 % (pairwise alignment). Phylogenetic analyses showed that strain AMV4T clustered with Aquipuribacter hungaricus and was distantly related to the other genera of the family Intrasporangiaceae. DNA–DNA hybridization between strains AMV4T and Aquipuribacter hungaricus IV-75T showed a relatedness of 28 %. The predominant cellular fatty acids were iso-C15 : 0 (6.9 %), anteiso-C15 : 0 (25.3 %), C16 : 0 (12.9 %), anteiso-C16 : 0 (5.6 %), C18 : 1ω9c (19.8 %) and C18 : 3ω6,9,12c (9.1 %). The diagnostic diamino acid in the cell-wall peptidoglycan of strain AMV4T was meso-diaminopimelic acid. Strain AMV4T contained MK-10(H4) as the predominant respiratory quinone. The polar lipids consisted of phosphatidylglycerol, one unidentified glycolipid, two unidentified phospholipids and five unidentified lipids. The DNA G+C content of strain AMV4T was 74.3 mol%. Based on data from this taxonomic study using a polyphasic approach, it is proposed that strain AMV4T represents a novel species of the genus Aquipuribacter, with the suggested name Aquipuribacter nitratireducens sp. nov. The type strain is AMV4T ( = CCUG 58430T = DSM 22863T = NBRC 107137T).

scholarly journals Knoellia aerolata sp. nov., isolated from an air sample in Korea

2007 ◽  
Vol 57 (12) ◽  
pp. 2861-2864 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Byung-Yong Kim ◽  
Peter Schumann ◽  
Reiner M. Kroppenstedt ◽  
Hyung-Jun Noh ◽  
...  
Keyword(s):  
Sequence Similarity ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Mycolic Acids ◽  
Gene Sequence Analysis ◽  
Diamino Acid ◽  
Air Sample ◽  
Bacterium Strain ◽  
Ph Range ◽  
Type Strains

An aerobic, Gram-positive, non-motile, non-spore-forming, rod–coccus-shaped bacterium, strain 5317S-21T, was isolated from an air sample from Suwon city, Republic of Korea. The isolate was able to grow within a pH range of 5.0–9.0 and a temperature range of 5–35 °C and it tolerated up to 2 % (w/v) NaCl. The cell-wall peptidoglycan contained meso-diaminopimelic acid as diagnostic diamino acid. The predominant isoprenoid quinone was MK-8(H4). The major polar lipids were phosphatidylinositol, phosphatidylethanolamine and diphosphatidylglycerol; phosphatidylglycerol and several unknown phospholipids were also detected. Mycolic acids were absent. The only whole-cell sugar was glucose. The major cellular fatty acids were iso-C16 : 0, C17 : 1 ω8c and iso-C15 : 0. 16S rRNA gene sequence analysis indicated that strain 5317S-21T was related phylogenetically to members of the genus Knoellia, with 97.4 % sequence similarity to the type strains of Knoellia sinensis and Knoellia subterranea. The G+C content of the genomic DNA of strain 5317S-21T was 73 mol%. Levels of DNA–DNA relatedness between strain 5317S-21T and the type strains of Knoellia sinensis and Knoellia subterranea were 37 and 41 %, respectively. It was concluded that strain 5317S-21T represents a novel species of the genus Knoellia, for which the name Knoellia aerolata sp. nov. is proposed. The type strain is 5317S-21T (=KACC 20583T =DSM 18566T).

scholarly journals Streptomyces sasae sp. nov., isolated from bamboo (Sasa borealis) rhizosphere soil

2015 ◽  
Vol 65 (Pt_10) ◽  
pp. 3547-3551 ◽  
Author(s):  
Hyo-Jin Lee ◽  
Kyung-Sook Whang
Keyword(s):  
Rhizosphere Soil ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Gram Staining ◽  
Gene Sequence Analysis ◽  
Biochemical Analyses ◽  
Ph Range ◽  
Genotypic Characteristics

A novel strain of Gram-staining-positive actinobacterium, designated strain JR-39T, was isolated from the rhizosphere soil of bamboo (Sasa borealis) sampled in Damyang, Korea, and its taxonomic position was investigated by a polyphasic approach. The isolate formed flexuous chains of spores that were cylindrical and smooth-surfaced. Strain JR-39T grew at 4–37 °C (optimum 28 °C). The pH range for growth was pH 5–10 (optimum pH 6–8) and the NaCl range for growth was 0–5 % (w/v) with optimum growth at 1 % NaCl. The cell-wall peptidoglycan contained ll-diaminopimelic acid, glutamic acid, alanine and glycine. Whole-cell hydrolysates mainly contained glucose, mannose, ribose and rhamnose. Predominant menaquinones were MK-9 (H6), MK-9 (H8) and MK-9 (H4). The major cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0, iso-C15 : 0 and iso-C14 : 0. The G+C content of the DNA was 72.3 ± 0.34 mol%. Phylogenetic analyses based on 16S rRNA gene sequence analysis indicated that strain JR-39T belonged to the genus Streptomyces, showing the highest sequence similarity to Streptomyces panaciradicis 1MR-8T (99.4 %), Streptomyces capoamus JCM 4734T (98.8 %), Streptomyces galbus DSM 40089T (98.7 %), Streptomyces longwoodensis LMG 20096T (98.7 %), Streptomyces bungoensis NBRC 15711T (98.7 %) and Streptomyces rhizophilus JR-41T (98.7 %). However, DNA–DNA hybridization assays, as well as physiological and biochemical analyses, showed that strain JR-39T could be differentiated from its closest phylogenetic relatives. On the basis of the phenotypic and genotypic characteristics, strain JR-39T represents a novel species for which the name Streptomyces sasae sp. nov. is proposed. The type strain is JR-39T ( = KACC 17182T = NBRC 109809T).

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