scholarly journals Staphylococcus devriesei sp. nov., isolated from teat apices and milk of dairy cows

2010 ◽  
Vol 60 (12) ◽  
pp. 2739-2744 ◽  
Author(s):  
Karlien Supré ◽  
Sarne De Vliegher ◽  
Ilse Cleenwerck ◽  
Katrien Engelbeen ◽  
Stefanie Van Trappen ◽  
...  

Ten non-motile, Gram-stain-positive, coagulase-negative staphylococci were isolated from bovine milk and teat apices. All isolates were catalase-positive, with anteiso-C15 : 0, iso-C15 : 0, anteiso-C17 : 0, iso-C17 : 0 and C18 : 0 as predominant fatty acids and diphosphatidylglycerol and phosphatidylglycerol as major polar lipids. The results of sequence analysis of the 16S rRNA gene and four housekeeping genes (rpoB, hsp60, tuf and dnaJ) in combination with tRNA-intergenic spacer length analysis showed that the isolates form a separate branch within the genus Staphylococcus. Based on 16S rRNA gene sequencing, the phylogenetically most closely related species are Staphylococcus haemolyticus, S. hominis and S. lugdunensis, with >98.7 % sequence similarity. The DNA G+C content varies from 33.3 to 33.7 mol%, and DNA–DNA hybridization with the nearest neighbours, based on 16S rRNA gene sequences, confirmed that the isolates represent a novel Staphylococcus species. All isolates induced a small zone of complete haemolysis on Columbia agar with 5 % sheep blood and exhibited a homogeneous biochemical fingerprint that is discriminative from the phylogenetically most closely related species. Based on these results, it is proposed to classify the ten isolates as Staphylococcus devriesei sp. nov., with strain KS-SP 60T (=LMG 25332T =CCUG 58238T) as the type strain.

2011 ◽  
Vol 61 (7) ◽  
pp. 1528-1533 ◽  
Author(s):  
Peter Kämpfer ◽  
Nicole Lodders ◽  
Karin Martin ◽  
Enevold Falsen

A Gram-stain-negative, rod-shaped, non-spore-forming bacterium originating from a human clinical specimen was studied for its taxonomic position. 16S rRNA gene sequence similarity studies clearly allocated this strain (CCUG 58010T) to the class Betaproteobacteria, closely related to members of the genera Massilia and Naxibacter. Naxibacter varians was shown to be the most closely related species on the basis of 16S rRNA gene sequence similarity (97.5 %), followed by Massilia niastensis (96.8 %) and Massilia aerilata (96.4 %). Similarities to all other species of the genera Naxibacter and Massilia were in the range 93.9–96.2 %. Chemotaxonomic data (major ubiquinone: Q-8; major polar lipids: phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol; and major fatty acids: summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH), C16 : 0, C18 : 1ω7c and C12 : 0, with C10 : 0 3-OH as hydroxylated fatty acid) supported the affiliation of the isolate to these genera, which share these chemotaxonomic traits. DNA–DNA hybridization of strain CCUG 58010T with the type strain of N. varians CCUG 35299T resulted in a relatedness value of 39.2 % (reciprocal, 50 %) and physiological and biochemical tests also allowed phenotypic differentiation of the isolate from the most closely related species. There is currently no justification for a division of the genera Massilia and Naxibacter and for this reason a proposal is made to transfer all species of the genus Naxibacter to the genus Massilia, as Massilia alkalitolerans comb. nov., Massilia varians comb. nov., Massilia haematophila comb. nov. and Massilia suwonensis comb. nov. Strain CCUG 58010T represents a novel species, for which the name Massilia consociata sp. nov. is proposed, with the type strain CCUG 58010T ( = CCM 7792T).


Author(s):  
Suchart Chanama ◽  
Chanwit Suriyachadkun ◽  
Manee Chanama

A novel actinomycete, strain SMC 257T, was isolated from a soil sample collected from mountain forest, Nan Province, Thailand. Strain SMC 257T formed tightly closed spiral spore chains on aerial mycelia. A polyphasic approach was used for the taxonomic study of this strain. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SMC 257T belonged to the genus Nonomuraea , and the closest phylogenetically related species were Nonomuraea roseoviolacea subsp. carminata JCM 9946T (98.9 % 16S rRNA gene sequence similarity), Nonomuraea rhodomycinica TBRC 6557T (98.4 %), and Nonomuraea roseoviolacea subsp. roseoviolacea JCM 3145T (98.3 %). Genome sequencing revealed a genome size of 9.76 Mbp and a G+C content of 72.3 mol%. The genome average nucleotide identity (ANI) and the digital DNA–DNA hybridization (dDDH) values that distinguished this novel strain from its closest related species were species boundary of 95–96 % and 70 %, respectively. The cell wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars were glucose, ribose, madurose and mannose. The major menaquinone was MK-9(H4). The polar lipid profile consisted of phosphatidylethanolamine, hydroxyphosphatidylethanolamine, lysophosphatidylethanolamine, diphosphatidylglycerol, N-phosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannosides. The predominant cellular fatty acids were C17 : 0 10-methyl and iso-C16 : 0. Based on comparative analysis of phenotypic, chemotaxonomic and genotypic data, strain SMC 257T is considered to represent a novel species of the genus Nonomuraea , for which the name Nonomuraea montanisoli is proposed. The type strain is SMC 257T (=TBRC 13065T=NBRC 114772T).


2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3175-3179 ◽  
Author(s):  
Kyung June Yim ◽  
Myunglip Lee ◽  
Hae-Won Lee ◽  
Kil-Nam Kim ◽  
Hye-Mi Yang ◽  
...  

A Gram-stain-negative bacterium, designated strain CBA4601T, was isolated from a seawater sample obtained off the coast of Jeju Island, Korea. The organism grew in the presence of 0–4 % (w/v) NaCl and at 20–35 °C and pH 7.0–9.0, with optimal growth in 2 % NaCl, and at 25 °C and pH 8.0. Phylogenetic trees based on 16S rRNA gene sequences showed that strain CBA4601T was related to the genus Ferrimonas within the class Gammaproteobacteria . 16S rRNA gene sequence similarity between strain CBA4601T and Ferrimonas marina A4D-4T, the most closely related species, was 96.9 %. The G+C content of the genomic DNA from strain CBA4601T was 54.2 mol%, and the isoprenoid quinones menaquinone 7 (MK-7), ubiquinone 7 (Q-7) and ubiquinone 8 (Q-8) were detected. The major fatty acids were C17 : 1ω8c, C18 : 1ω9c and C16 : 0, and the major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and an unidentified ninhydrin-positive phospholipid. On the basis of this taxonomic study using a polyphasic approach, strain CBA4601T represents a novel species of the genus Ferrimonas , for which the name Ferrimonas pelagia sp. nov. is proposed. The type strain is CBA4601T ( = KACC 16695T = KCTC 32029T = JCM 18401T).


2007 ◽  
Vol 57 (4) ◽  
pp. 721-724 ◽  
Author(s):  
Peter Kämpfer ◽  
Birgit Huber ◽  
Kathrin Thummes ◽  
Iris Grün-Wollny ◽  
Hans-Jürgen Busse

A Gram-positive bacterium, strain GW8-1761T, was isolated from soil close to the Marmore waterfalls, Terni, Italy. 16S rRNA gene sequence similarity studies showed that strain GW8-1761T belonged to the genus Actinoplanes, being most closely related to Actinoplanes italicus JCM 3165T (98.9 %), A. rectilineatus IFO 13941T (98.5 %), A. palleronii JCM 7626T (97.8 %), A. utahensis IFO 13244T (97.6 %) and A. cyaneus DSM 46137T (97.6 %). Strain GW8-1761T could be distinguished from any other Actinoplanes species with validly published names by 16S rRNA gene sequence similarity values of less than 97.5 %. Chemotaxonomic data [major menaquinone MK-9(H4); major polar lipids diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol, with phosphatidylcholine and aminoglycolipids absent; major fatty acids C15 : 0, C16 : 0, C16 : 0 iso, C17 : 1 ω8c and summed feature 3 (C16 : 1 ω7c and/or C15 : 0 iso 2-OH)] supported the affiliation of strain GW8-1761T to the genus Actinoplanes. The results of DNA–DNA hybridizations and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain GW8-1761T from the most closely related species. Strain GW8-1761T therefore merits species status, and we propose the name Actinoplanes couchii sp. nov., with the type strain GW8-1761T (=DSM 45050T=CIP 109316T).


2007 ◽  
Vol 57 (2) ◽  
pp. 337-341 ◽  
Author(s):  
Soon Dong Lee ◽  
Se Jae Kim

A Gram-positive, non-motile, rod-shaped actinomycete strain, designated SSW1-57T, was isolated from a dried seaweed sample from the coast of Jeju Island, Republic of Korea and subjected to a polyphasic taxonomic study. A neighbour-joining tree based on 16S rRNA gene sequences showed that the organism was related to members of the family Nocardioidaceae and formed a separate branch at the base of a taxon encompassing members of the genus Aeromicrobium, whereas it occupied an intermediate position between Aeromicrobium alkaliterrae–Aeromicrobium marinum and Aeromicrobium erythreum–Aeromicrobium fastidiosum clusters in maximum-parsimony and maximum-likelihood trees. The phylogenetic association of the isolate with the genus Aeromicrobium was supported by the following chemotaxonomic properties: ll-diaminopimelic acid in the peptidoglycan, MK-9(H4) as the major menaquinone and major fatty acids cis-9-octadecenoic acid, hexadecanoic acid, 10-methyl octadecanoic acid and 2-hydroxy hexadecanoic acid. The polar lipid profile contained phosphatidylinositol, diphosphatidylglycerol and phosphatidylglycerol. Levels of 16S rRNA gene sequence similarity between the novel organism and the type strains of the four recognized Aeromicrobium species were in the range 96.5–96.7 %. On the basis of phylogenetic analyses and phenotypic data, it is proposed that the organism should be classified as representing a novel species of the genus Aeromicrobium, with the name Aeromicrobium tamlense sp. nov. The type strain is SSW1-57T (=JCM 13811T=NRRL B-24466T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 424-431 ◽  
Author(s):  
Víctor Gonzalo Arnau ◽  
Leandro Arturo Sánchez ◽  
Osvaldo Daniel Delgado

A psychrotolerant strain, 8H1T, was isolated from soil samples collected in Isla de los Estados, Ushuaia, Argentina. Cells were Gram-negative, aerobic, straight rods, occurring singly or in pairs, non-spore-forming and motile by means of two polar flagella. The isolate was able to grow in the range 4–35 °C, with optimum growth at 28 °C. The predominant cellular fatty acids were summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c), C16 : 0 and summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c). The polar lipid pattern of strain 8H1T comprised phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and an unknown phospholipid. Ubiquinone 9 (Q-9) was the predominant lipoquinone. The DNA G+C content was 59.8 mol%. 16S rRNA gene sequence-based phylogeny suggested the affiliation of strain 8H1T to the ‘Pseudomonas fluorescens group’, displaying ≥98.5 % sequence similarity to 29 type strains. A multilocus sequence analysis (MLSA) study performed by concatenating 16S rRNA, gyrB, rpoD and rpoB gene sequences showed that isolate 8H1T could be discriminated from closely related species of the genus Pseudomonas and placed in the ‘Pseudomonas gessardii subgroup’, including the species with the highest MLSA sequence similarities: Pseudomonas brenneri (96.2 %), P. gessardii (96.1 %), P. proteolytica (96.0 %), P. meridiana (96.0 %) and P. mucidolens (95.4 %). DNA–DNA hybridization analysis between 8H1T and the type strains of these closely related species revealed relatedness values of 27.0, 8.8, 41.2, 39.7 and 46.1 %, respectively. These results, together with differences in several phenotypic features, support the classification of a novel species, for which the name Pseudomonas yamanorum sp. nov. is proposed. The type strain is 8H1T ( = DSM 26522T = CCUG 63249T = LMG 27247T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1475-1484 ◽  
Author(s):  
Joshua W. Gatson ◽  
Bruce F. Benz ◽  
Chitra Chandrasekaran ◽  
Masataka Satomi ◽  
Kasthuri Venkateswaran ◽  
...  

A Gram-positive, spore-forming bacillus was isolated from a sample taken from an approximately 2000-year-old shaft-tomb located in the Mexican state of Jalisco, near the city of Tequila. Tentative identification using conventional biochemical analysis consistently identified the isolate as Bacillus subtilis. DNA isolated from the tomb isolate, strain 10bT, and closely related species was used to amplify a Bacillus-specific portion of the highly conserved 16S rRNA gene and an internal region of the superoxide dismutase gene (sodA int). Trees derived from maximum-likelihood methods applied to the sodA int sequences yielded non-zero branch lengths between strain 10bT and its closest relative, whereas a comparison of a Bacillus-specific 546 bp amplicon of the 16S rRNA gene demonstrated 99 % similarity with B. subtilis. Although the 16S rRNA gene sequences of strain 10bT and B. subtilis were 99 % similar, PFGE of NotI-digested DNA of strain 10bT revealed a restriction profile that was considerably different from those of B. subtilis and other closely related species. Whereas qualitative differences in whole-cell fatty acids were not observed, significant quantitative differences were found to exist between strain 10bT and each of the other closely related Bacillus species examined. In addition, DNA–DNA hybridization studies demonstrated that strain 10bT had a relatedness value of less than 70 % with B. subtilis and other closely related species. Evidence from the sodA int sequences, whole-cell fatty acid profiles and PFGE analysis, together with results from DNA–DNA hybridization studies, justify the classification of strain 10bT as representing a distinct species, for which the name Bacillus tequilensis sp. nov. is proposed. The type strain is 10bT (=ATCC BAA-819T=NCTC 13306T).


2011 ◽  
Vol 61 (5) ◽  
pp. 1089-1093 ◽  
Author(s):  
Ki-Hoon Oh ◽  
So-Jung Kang ◽  
Yong-Taek Jung ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-negative, non-motile, rod-shaped bacterial strain, DS-58T, was isolated from a soil sample from Dokdo, an island of Korea, and its taxonomic position was investigated. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-58T fell within the family Xanthomonadaceae. The isolate showed 96.9 % 16S rRNA gene sequence similarity with its closest phylogenetic neighbour, Lysobacter niastensis GH41-7T, and 93.4–95.7 % 16S rRNA gene sequence similarity with other members of the genus Lysobacter. Strain DS-58T contained Q-8 as the predominant ubiquinone and iso-C16 : 0, iso-C15 : 0 and iso-C17 : 1ω9c as the major fatty acids. The DNA G+C content was 68.1 mol%. Strain DS-58T could be distinguished phenotypically from type strains of closely related species of the genus Lysobacter and phylogenetically from all members of the genus Lysobacter. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain DS-58T is considered to represent a novel species of the genus Lysobacter, for which the name Lysobacter dokdonensis sp. nov. is proposed. The type strain is DS-58T ( = KCTC 12822T  = DSM 17958T).


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1611-1616 ◽  
Author(s):  
Syed G. Dastager ◽  
Rahul Mawlankar ◽  
Vidya V. Sonalkar ◽  
Meghana N. Thorat ◽  
Poonam Mual ◽  
...  

A Gram-stain-positive bacterium, designated strain NIO-1109T, was isolated from a marine sediment sample from Chorao Island, Goa, India. Phenotypic and chemotaxonomic characteristics and data from phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NIO-1109T was related to the genus Exiguobacterium . Strain NIO-1109T exhibited >98.0 % 16S rRNA gene sequence similarity with respect to Exiguobacterium indicum HHS 31T (99.5 %) and Exiguobacterium acetylicum NCIMB 9889T (99.1 %); the type strains of other species showed <98 % similarity. Levels of DNA–DNA relatedness between strain NIO-1109T and E. acetylicum DSM 20416T and E. indicum LMG 23471T were less than 70 % (33.0±2.0 and 37±3.2 %, respectively). Strain NIO-1109T also differed from these two closely related species in a number of phenotypic traits. Based on phenotypic, chemotaxonomic and phylogenetic data, strain NIO-1109T is considered to represent a novel species of the genus Exiguobacterium , for which the name Exiguobacterium enclense sp. nov. is proposed. The type strain is NIO-1109T ( = NCIM 5457T = DSM 25128T = CCTCC AB 2011124T).


2011 ◽  
Vol 61 (11) ◽  
pp. 2664-2669 ◽  
Author(s):  
Meyyappan Arumugam ◽  
Anindita Mitra ◽  
Arnab Pramanik ◽  
Malay Saha ◽  
Ratan Gachhui ◽  
...  

A novel actinomycete producing 2-allyloxyphenol, designated strain MS1/7T, was isolated from sediments of the Sundarbans mangrove forest, India. Growth on International Streptomyces Project (ISP) media 2, 3, 4, 5 and 7 produced olive green to grey aerial hyphae that carried smooth-surfaced spores in a flexuous (Rectiflexibiles) arrangement. The strain contained ll-diaminopimelic acid, but no diagnostic sugars in whole-cell hydrolysates. Hexa-, octa- and a minor amount of tetra-hydrogenated menaquinones with nine isoprene units [MK-9 (H4, H6, H8 and H10)] were present as isoprene analogues. Diagnostic phospholipids were phosphatidylethanolamine and diphosphatidylglycerol. The predominant fatty acids were anteiso-C15 : 0 (34.80 %), iso-C16 : 0 (16.45 %), C16 (10.53 %) and anteiso-C17 : 0 (10.92 %). The strain showed greater than 99 % 16S rRNA gene sequence similarity to the type strains of several recognized species of the genus Streptomyces, but in the phylogenetic tree based on 16S rRNA gene sequences it formed a distinct phyletic line and demonstrated closest relationships to viomycin-producers (Streptomyces californicus NRRL B-1221T, Streptomyces floridae MTCC 2534T and Streptomyces puniceus NRRL B-2895T). However, strain MS1/7T could be distinguished from these and other closely related species based on low levels of DNA–DNA relatedness (<44 %) and disparate physiological features, principally amino acid utilization and growth in NaCl. Strain MS1/7T is therefore suggested to represent a novel species of the genus Streptomyces, for which the name Streptomyces sundarbansensis sp. nov. is proposed. The type strain is MS1/7T ( = MTCC 10621T = DSM 42019T).


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