scholarly journals Burkholderia oxyphila sp. nov., a bacterium isolated from acidic forest soil that catabolizes (+)-catechin and its putative aromatic derivatives

2011 ◽  
Vol 61 (2) ◽  
pp. 249-254 ◽  
Author(s):  
Yuichiro Otsuka ◽  
Yuki Muramatsu ◽  
Yasuyoshi Nakagawa ◽  
Motoki Matsuda ◽  
Masaya Nakamura ◽  
...  

A novel bacterium, designated strain OX-01T, was isolated from acidic soil, taxonomically investigated and identified as an agent that catabolizes (+)-catechin into taxifolin. Strain OX-01T is a Gram-reaction-negative, aerobic, non-sporulating, non-motile and rod-shaped bacterium. 16S rRNA gene sequence analysis identified this strain as a member of the genus Burkholderia and occupying a phylogenetic position closest to, but clearly distinct from, Burkholderia sacchari. Strain OX-01T does not have any nif genes, which are required for N2-fixation, in its genome, a feature that is similar to B. sacchari, which lacks nifH, but is distinct from the N2-fixing features of many other phylogenetically related taxa, such as Burkholderia ferrariae, B. heleia, B. mimosarum, B. nodosa, B. silvatlantica, B. tropica and B. unamae. Strain OX-01T has the following chemotaxonomic characteristics: the major ubiquinone is Q-8, the DNA G+C content is 64 mol% and the major fatty acids are C16 : 0, C17 : 0 cyclo and C18 : 1 ω7c. It also has a unique profile of carbohydrate utilization among other species of the genus Burkholderia. The strain cannot assimilate many pentoses, hexoses and oligosaccharides, whereas it can catabolize (+)-catechin and its putative aromatic derivatives, such as 4-hydroxy-3-methoxycinnamic acid, protocatechuic acid, p-hydroxybenzoic acid, trans-p-coumaric acid and vanillic acid. Based on its morphological, physiological and chemotaxonomic characteristics, together with DNA–DNA relatedness values and 16S rRNA gene sequence comparison data, we show that strain OX-O1T represents a novel species of the genus Burkholderia, for which the name Burkholderia oxyphila sp. nov. is proposed. The type strain is OX-01T (=NBRC 105797T =DSM 22550T).

2007 ◽  
Vol 57 (2) ◽  
pp. 293-296 ◽  
Author(s):  
Mitsuo Sakamoto ◽  
Maki Kitahara ◽  
Yoshimi Benno

A bacterial strain isolated from human faeces, M-165T, was characterized in terms of its phenotypic and biochemical features, cellular fatty acid profile, menaquinone profile and phylogenetic position (based on 16S rRNA gene sequence analysis). A 16S rRNA gene sequence analysis showed that the isolate was a member of the genus Parabacteroides. Strain M-165T was closely related to Parabacteroides merdae strains, showing 98 % sequence similarity. The strain was obligately anaerobic, non-pigmented, non-spore-forming, non-motile, Gram-negative, rod-shaped and was able to grow on media containing 20 % bile. Although the phenotypic characteristics of the strain M-165T were similar to those of P. merdae, the isolate could be differentiated from P. merdae by means of API 20A tests for l-arabinose and l-rhamnose fermentation. DNA–DNA hybridization experiments revealed the genomic distinctiveness of the novel strain with respect to P. merdae JCM 9497T (⩽60 % DNA–DNA relatedness). The DNA G+C content of the strain is 47.6 mol%. On the basis of these data, strain M-165T represents a novel species of the genus Parabacteroides, for which the name Parabacteroides johnsonii sp. nov. is proposed. The type strain is M-165T (=JCM 13406T=DSM 18315T).


2006 ◽  
Vol 56 (3) ◽  
pp. 559-562 ◽  
Author(s):  
Soon Dong Lee

A novel actinomycete, strain N3-2T, was isolated from a natural cave on Jeju Island, Republic of Korea, using a dilution method and was subjected to polyphasic taxonomy. The almost complete 16S rRNA gene sequence was determined by direct sequencing of the purified PCR product and was compared with those of representatives of the genus Nocardia. It was revealed from the phylogenetic analysis that the organism forms a distinct clade between the Nocardia salmonicida cluster and the Nocardia alba branch within the evolutionary radius occupied by the genus Nocardia of the family Nocardiaceae. The organism showed 16S rRNA gene sequence similarity of 97·4 % with its nearest phylogenetic neighbours, namely N. salmonicida and N. alba. The chemotaxonomic properties, such as the principal amino acid of peptidoglycan, predominant menaquinone and polar lipids, supported the classification in the genus Nocardia. The organism was readily differentiated from Nocardia species with validly published names by a broad set of phenotypic properties and its unique phylogenetic position; the name Nocardia jejuensis sp. nov. is proposed, with N3-2T (=JCM 13281T=NRRL B-24430T) as the type strain.


2011 ◽  
Vol 61 (4) ◽  
pp. 956-960 ◽  
Author(s):  
Gunnar Sturm ◽  
Johanna Jacobs ◽  
Cathrin Spröer ◽  
Peter Schumann ◽  
Johannes Gescher

A Gram-positive, irregular rod-shaped, non-motile, yellow-pigmented bacterium, strain JG 31T, was isolated in the course of identifying chromium-resistant soil bacteria. 16S rRNA gene sequence analysis of the isolated bacterium indicated its phylogenetic position within the genus Leucobacter. Binary 16S rRNA gene sequence alignments of the isolated bacterium with the 11 species of the genus recognized at the time of writing revealed sequence similarities of more than 97 % with Leucobacter alluvii (GenBank accession no: AM072820; 99.4 %), Leucobacter iarius (AM040493; 98.2 %), Leucobacter aridicollis (AJ781047; 97.8 %), Leucobacter komagatae (AB007419; 97.4 %), Leucobacter chironomi (EU346911; 97.1 %) and Leucobacter luti (AM072819; 97.1 %). In contrast, DNA–DNA hybridization experiments showed similarity values below 28 % for DNA samples from the most closely related type strains of L. alluvii, L. aridicollis and L. iarius. Protein analysis by matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and automated RiboPrinting using the restriction enzyme PvuII differentiated strain JG 31T from all type strains of the genus Leucobacter. The dominant fatty acids of the novel isolate were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0, while the quinone system consisted of menaquinones MK-11, MK-10, MK-9 and MK-8. In a B-type cross-linked peptidoglycan, the cell-wall amino acids were alanine, glycine, threonine, glutamic acid and 2,4-diaminobutyric acid. Strain JG 31T was able to grow in a medium containing up to 300 mM K2CrO4 and showed cellular aggregation in response to chromate stress. From biochemical and genomic analyses, the new strain is considered to represent a novel species of the genus Leucobacter, for which the name Leucobacter chromiiresistens sp. nov. is proposed. The type strain is strain JG 31T ( = DSM 22788T  = CCOS 200T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1534-1538 ◽  
Author(s):  
Ji Young Jung ◽  
Jeong Myeong Kim ◽  
Hyun Mi Jin ◽  
Sun Young Kim ◽  
Woojun Park ◽  
...  

A heterotrophic, Gram-negative, prosthecate bacterium, designated strain G5T, was isolated from a sandy beach of Taean in South Korea. Cells of strain G5T were aerobic, catalase- and oxidase-positive, straight to slightly curved motile rods with a single flagellum and formed yellow–orange colonies on agar. Growth occurred at 15–40 °C (optimum 25–30 °C) and pH 6–9 (optimum pH 7–8). The major cellular fatty acids were C18 : 1ω7c, C17 : 0, C16 : 0, 11-methyl C18 : 1ω7c, C17 : 1ω8c and C17 : 1ω6c. The polar lipid pattern indicated the presence of phosphatidylglycerol, monoglycosyldiglyceride, glucuronopyranosyldiglyceride and two unidentified glycolipids. The G+C content of the genomic DNA was 63.6 mol% and the major quinone was Q-10. Comparative 16S rRNA gene sequence analysis showed that strain G5T belonged to the branch containing the genera Hellea, Robiginitomaculum and Hypomonas within the family Hyphomonadaceae. Within this group, strain G5T was most closely related to Hellea balneolensis 26III/A02/215T with 95.8 % 16S rRNA gene sequence similarity. Based on its phylogenetic position and its phenotypic, chemotaxonomic and molecular properties, strain G5T represents a novel species of a novel genus of the family Hyphomonadaceae, for which the name Litorimonas taeanensis gen. nov., sp. nov. is proposed. The type strain is G5T ( = KACC 13701T  = DSM 22008T).


2006 ◽  
Vol 56 (8) ◽  
pp. 1823-1829 ◽  
Author(s):  
Peter Kämpfer ◽  
Ramon Rosselló-Mora ◽  
Holger C. Scholz ◽  
Christina Welinder-Olsson ◽  
Enevold Falsen ◽  
...  

Two Gram-negative, rod-shaped, oxidase-positive, non-spore-forming, non-motile bacteria (CCUG 46016T and CCUG 33852T), isolated from a knee aspirate of a 66-year-old man and an industrial glue, respectively, were studied for their taxonomic position. On the basis of chemotaxonomic data [i.e. major ubiquinone (Q-10), major polar lipids (phosphatidylethanolamine, phosphatidylglycerol and phosphatidylcholine) and major fatty acids (C18 : 1 ω7c and C19 : 0 cyclo ω8c)] and 16S rRNA gene sequence similarity, both strains belong to the Alphaproteobacteria. The presence of spermidine and putrescine as the predominant polyamines in CCUG 46016T were in agreement with its phylogenetic affiliation in the vicinity of the genus Ochrobactrum. 16S rRNA gene sequence similarities between both strains and established species within the genera Bartonella, Ochrobactrum and Brucella were less than 95 %. Although both organisms showed highest 16S rRNA gene sequence similarity to members of Brucella, phenotypic features (including chemotaxonomic features) were more like those of members of the genus Ochrobactrum. Sequence comparison of the recA genes confirmed the separate phylogenetic position of the two strains. On the basis of DNA–DNA pairing results and physiological and biochemical data, the two strains can be clearly differentiated from each other and from all known Ochrobactrum species. It is evident that these organisms represent two novel species in a new genus, Pseudochrobactrum gen. nov., for which the names Pseudochrobactrum asaccharolyticum sp. nov. (the type species, type strain CCUG 46016T=CIP 108977T) and Pseudochrobactrum saccharolyticum sp. nov. (type strain CCUG 33852T=CIP 108976T) are proposed.


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1406-1408 ◽  
Author(s):  
Peter Kämpfer ◽  
Stefanie P. Glaeser

Serratia glossinae DSM 22080T was compared with Serratia fonticola ATCC 29844T to clarify the taxonomic relationship of both species. 16S rRNA gene sequence comparisons demonstrated that these species share 99.6 % sequence similarity. Investigation of substrate utilization profiles displayed no striking differences from the type strains of both species. DNA–DNA hybridizations between both strains showed 100 % (99.9 %) similarity. Therefore, the reclassification of S. glossinae as a later synonym of S. fonticola is proposed, based upon the estimated phylogenetic position derived from 16S rRNA gene sequence data, biochemical data and DNA–DNA hybridization results.


2011 ◽  
Vol 61 (9) ◽  
pp. 2259-2265 ◽  
Author(s):  
Lei Zhang ◽  
Juan Bai ◽  
Yang Wang ◽  
Gao-Lin Wu ◽  
Jun Dai ◽  
...  

Two Gram-reaction-negative, rod-shaped, gliding, yellow-pigmented bacterial strains, designated ZLD-17T and ZLD-29T, were isolated from arid soil samples collected from Xinjiang Province, north-west China, and subjected to analysis using a polyphasic taxonomic approach. Both novel strains required 1.0–2.0 % (w/v) sea salts for optimal growth. Phylogenetic analysis based on 16S rRNA gene sequences indicated that these two strains belong to the genus Lysobacter within the class Gammaproteobacteria. Strain ZLD-17T showed highest 16S rRNA gene sequence similarities to Lysobacter capsici KCTC 22007T (96.9 %), Lysobacter spongiicola DSM 21749T (96.8 %) and Lysobacter koreensis KCTC 12204T (96.8 %), whereas strain ZLD-29T showed highest sequence similarities to Lysobacter niastensis DSM 18481T (96.0 %) and Lysobacter enzymogenes DSM 2043T (95.9 %). 16S rRNA gene sequence similarity between ZLD-17T and ZLD-29T was 96.1 %. The DNA G+C contents of strains ZLD-17T and ZLD-29T were 67.9 and 68.2 mol%, respectively. The major cellular fatty acids of both strains were summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C17 : 1ω9c, iso-C16 : 0, C16 : 0 and iso-C11 : 0 3-OH; their predominant isoprenoid quinone was Q-8 and their major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. Based on their phenotypic characteristics, phylogenetic position as determined by 16S rRNA gene sequence analysis and chemotaxonomic data, strains ZLD-17T ( = CCTCC AB 207174T  = KCTC 23076T) and ZLD-29T ( = CCTCC AB 207175T = KCTC 23077T) represent two novel species of the genus Lysobacter, for which the names Lysobacter korlensis sp. nov. and Lysobacter bugurensis sp. nov. are proposed, respectively.


2006 ◽  
Vol 56 (9) ◽  
pp. 2177-2183 ◽  
Author(s):  
Ingrid Brettar ◽  
Richard Christen ◽  
Manfred G. Höfle

A bacterial isolate from the Baltic Sea, BA131T, was characterized for its physiological and biochemical features, fatty acid profile, G+C content and phylogenetic position based on comparative 16S rRNA gene sequence analysis. The strain was isolated from surface water of the central Baltic Sea during the decay of a plankton bloom. Phylogenetic analyses of the 16S rRNA gene sequence revealed a clear affiliation with the Gammaproteobacteria, and showed closest phylogenetic relationships with the genera Alishewanella and Rheinheimera. The G+C content of the DNA of strain BA131T was 48.9 mol%. Cells were non-pigmented, Gram-negative, rod-shaped, motile by means of a single polar flagellum and catalase- and oxidase-positive. Growth was observed at salinities from 0 to 8 %, with an optimum at 1–3 %. Temperature for growth ranged from 4 to 37 °C, with an optimum around 25 °C. The fatty acids were dominated by 16 : 0 (17–18 %) and by unsaturated compounds (>61 % of the total): 16 : 1ω7c (24–33 %), 17 : 1ω8c (14–18 %) and 18 : 1ω7c (9–12 %). Based on the data presented, BA131T is proposed as the type strain of a novel species of the genus Rheinheimera, Rheinheimera perlucida sp. nov. The type strain is BA131T (=LMG 23581T=CIP 109200T).


Author(s):  
Shadi Khodamoradi ◽  
Richard L. Hahnke ◽  
Yvonne Mast ◽  
Peter Schumann ◽  
Peter Kämpfer ◽  
...  

AbstractStrain M2T was isolated from the beach of Cuxhaven, Wadden Sea, Germany, in course of a program to attain new producers of bioactive natural products. Strain M2T produces litoralimycin and sulfomycin-type thiopeptides. Bioinformatic analysis revealed a potential biosynthetic gene cluster encoding for the M2T thiopeptides. The strain is Gram-stain-positive, rod shaped, non-motile, spore forming, showing a yellow colony color and forms extensively branched substrate mycelium and aerial hyphae. Inferred from the 16S rRNA gene phylogeny strain M2T affiliates with the genus Streptomonospora. It shows 96.6% 16S rRNA gene sequence similarity to the type species Streptomonospora salina DSM 44593 T and forms a distinct branch with Streptomonospora sediminis DSM 45723 T with 97.0% 16S rRNA gene sequence similarity. Genome-based phylogenetic analysis revealed that M2T is closely related to Streptomonospora alba YIM 90003 T with a digital DNA-DNA hybridisation (dDDH) value of 26.6%. The predominant menaquinones of M2T are MK-10(H6), MK-10(H8), and MK-11(H6) (> 10%). Major cellular fatty acids are iso-C16:0, anteiso C17:0 and C18:0 10-methyl. The polar lipid profile consisted of diphosphatidylglycerol phosphatidyl glycerol, phosphatidylinositol, phosphatidylcholine, phosphatidylethanolamine, three glycolipids, two unknown phospholipids, and two unknown lipids. The genome size of type strain M2T is 5,878,427 bp with 72.1 mol % G + C content. Based on the results obtained from phylogenetic and chemotaxonomic studies, strain M2T (= DSM 106425 T = NCCB 100650 T) is considered to represent a novel species within the genus Streptomonospora for which the name Streptomonospora litoralis sp. nov. is proposed.


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