scholarly journals Investigation of taxa of the family Pasteurellaceae isolated from Syrian and European hamsters and proposal of Mesocricetibacter intestinalis gen. nov., sp. nov. and Cricetibacter osteomyelitidis gen. nov., sp. nov.

2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3636-3643 ◽  
Author(s):  
H. Christensen ◽  
W. Nicklas ◽  
M. Bisgaard

Eleven strains from hamster of Bisgaard taxa 23 and 24, also referred to as Krause’s groups 2 and 1, respectively, were investigated by a polyphasic approach including data published previously. Strains showed small, regular and circular colonies with smooth and shiny appearance, typical of members of the family Pasteurellaceae . The strains formed two monophyletic groups based on 16S rRNA gene sequence comparison to other members of the family Pasteurellaceae . Partial rpoB sequencing as well as published data on DNA–DNA hybridization showed high genotypic relationships within both groups. Menaquinone 7 (MK7) was found in strains of both groups as well as an unknown ubiquinone with shorter chain length than previously reported for any other member of the family Pasteurellaceae . A new genus with one species, Mesocricetibacter intestinalis gen. nov., sp. nov., is proposed to accommodate members of taxon 24 of Bisgaard whereas members of taxon 23 of Bisgaard are proposed to represent Cricetibacter osteomyelitidis gen. nov., sp. nov. Major fatty acids of type strains of type species of both genera are C14 : 0, C14 : 0 3-OH/iso-C16 : 1 I, C16 : 1ω7c and C16 : 0. The two genera are clearly separated by phenotype from each other and from existing genera of the family Pasteurellaceae . The type strain of Mesocricetibacter intestinalis is HIM 933/7T ( = Kunstyr 246/85T = CCUG 28030T = DSM 28403T) while the type strain of Cricetibacter osteomyelitidis is HIM943/7T ( = Kunstyr 507/85T = CCUG 36451T = DSM 28404T).

Author(s):  
Yajun Ge ◽  
Bin Wang ◽  
Jing Yang ◽  
Xin-He Lai ◽  
Gui Zhang ◽  
...  

Four novel strains isolated from the cloacal contents of snow finches (Montifringilla taczanowskii) were characterized as aerobic, Gram-stain-negative, slightly motile, and rod-shaped. Analysis of the 16S rRNA gene sequence revealed that strain CF-458T had the highest similarities of 96.9 and 96.4 % with Limnobaculum parvum HYN0051T and Pragia fontium DSM 5563T, while strain CF-1111T shared the highest similarities of 96.4 and 96.1 % with Pantoea rodasii LMG 26273T and Pectobacterium punjabense SS95T. Phylogenomic analysis showed the four isolates were separated into group Ⅰ (CF-458T and CF-917) and group Ⅱ (CF-1111T and CF-509), and clustered independently in the vicinity of the genera Limnobaculum and Pragia . Summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c, 23.9 and 17.2 %, respectively), C16 : 0 (21.8 and 22.1 %, respectively) and C14 : 0 (10.6 and 17.7 %, respectively) were the common major fatty acids, and summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c, 12.3 %) was also a major fatty acid for strain CF-458T while cyclo-C17 : 0 (13.1%) was for strain CF-1111T. Both had Q-8 as the sole quinone and contained phosphatidylethanolamine, phosphatidylglycerol, and diphosphatidylglycerol as the major polar lipids. The DNA G+C content of strains CF-458T and CF-1111T was 45.7 and 45.4 mol%, respectively. Based on taxonomic position in the phylogenomic tree and phenotypic properties, two novel species of a new genus within the family Budviciaceae are thus proposed, with the name Jinshanibacter gen. nov., zhutongyuii sp. nov. (type strain CF-458T=CGMCC 1.16483T=GDMCC 1.1586T=JCM 33489T) and Jinshanibacter xujianqingii sp. nov. (type strain CF-1111T=CGMCC 1.16786T=GDMCC 1.1587T=JCM 33490T), respectively.


2015 ◽  
Vol 65 (Pt_3) ◽  
pp. 789-793 ◽  
Author(s):  
Paul A. Lawson ◽  
Sydney M. Finegold

During our previous studies we reclassified Clostridium coccoides and a number of misclassified ruminococci into a novel genus Blautia within the family Lachnospiraceae . However, the Rules of the Bacteriological Code currently require that the types of all species and subspecies with new names (including new combinations) be deposited in two different collections in two different countries. The type strain of Ruminococcus obeum was, at that period in time, only deposited in the American Type Culture Collection (ATCC) and a second independent deposit, as required by the Code, was not available. Consequently, the transfer of this species to the genus Blautia could not be made, because the resulting species name would not conform to the Rules governing the valid publication of species names and deposit of type material (Rules 27 and 30) and consequently would not be considered to be validly published. This resulted in a nomenclatural and taxonomic anomaly with R. obeum being phylogenetically placed among members of the genus Blautia with 16S rRNA gene sequence similarities of between 91.8 and 96.6 %. In order to rectify this unsatisfactory situation, through our discussions with the ATCC, the deposit of strain R. obeum ATCC 29174T to the DSMZ as strain number DSM 25238T was completed. Hence, the transfer of R. obeum to the genus Blautia as Blautia obeum comb. nov. is now proposed. The type strain is ATCC 29174T ( = DSM 25238T = KCTC 15206T).


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1331-1336 ◽  
Author(s):  
A. Makhdoumi-Kakhki ◽  
M. A. Amoozegar ◽  
A. Ventosa

A novel red-pigmented halophilic archaeon, strain EB27T, was isolated from Aran-Bidgol salt lake, a hypersaline playa in Iran. Cells of strain EB27T were non-motile and pleomorphic (rods to triangular or disc-shaped). Strain EB27T required at least 2.5 M NaCl and 0.1 M MgCl2 for growth. Optimal growth was achieved at 4 M NaCl and 0.5 M MgCl2. The optimum pH and temperature for growth were pH 7.5 and 40 °C; it was able to grow at pH 6.0–8.0 and 25–50 °C. 16S rRNA gene sequence analysis showed that strain EB27T is a member of the family Halobacteriaceae ; however, levels of 16S rRNA gene sequence similarity were as low as 90.0, 89.3 and 89.1 % to the most closely related haloarchaeal taxa, namely Halalkalicoccus tibetensis DS12T, Halosimplex carlsbadense 2-9-1T and Halorhabdus utahensis AX-2T, respectively. The DNA G+C content of strain EB27T was 61 mol%. Strain EB27T contained phosphatidylglycerol and phosphatidylglycerol phosphate methyl ester, common phospholipids found in haloarchaea, together with two minor phospholipids. The only quinone present was MK-8(II-H2). Physiological, biochemical and phylogenetic differences between strain EB27T and recognized genera of extremely halophilic archaea suggest that this strain represents a novel species in a new genus within the family Halobacteriaceae , for which the name Halovenus aranensis gen. nov., sp. nov. is proposed. The type strain of Halovenus aranensis, the type species of the new genus, is strain EB27T ( = IBRC-M 10015T = CGMCC 1.11001T).


2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1403-1410 ◽  
Author(s):  
Yun-Hee Jang ◽  
Soo-Jin Kim ◽  
Tomohiko Tamura ◽  
Moriyuki Hamada ◽  
Hang-Yeon Weon ◽  
...  

A Gram-stain-positive, non-motile rod, designated strain SGM3-12T, was isolated from paddy soil in Suwon, Republic of Korea. 16S rRNA gene sequence analysis revealed that the strain represented a novel member of the family Microbacteriaceae . The nearest phylogenetic neighbour was Leifsonia kribbensis MSL-13T (97.4 % 16S rRNA gene sequence similarity). Strain SGM3-12T and Leifsonia kribbensis MSL-13T formed a distinct cluster within the family Microbacteriaceae . Strain SGM3-12T contained MK-12(H2) and MK-11(H2) as the predominant menaquinones with moderate amounts of MK-12 and MK-11; anteiso-C15 : 0 and iso-C16 : 0 as the major cellular fatty acids (>10 % of total); and diphosphatidylglycerol, phosphatidylglycerol and unidentified glycolipids as the polar lipids. The peptidoglycan type of the isolate was B1δ with l-Lys as the diagnostic cell-wall diamino acid. On the basis of these results, strain SGM3-12T represents a novel species within a new genus, for which the name Lysinimonas soli gen. nov., sp. nov. is proposed (the type strain of the type species is SGM3-12T = KACC 13362T = NBRC 107106T). It is also proposed that Leifsonia kribbensis be transferred to this genus as Lysinimonas kribbensis comb. nov. (the type strain is MSL-13T = DSM 19272T = JCM 16015T = KACC 21108T = KCTC 19267T).


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3568-3573 ◽  
Author(s):  
Hongliang Liu ◽  
Yumei Song ◽  
Fang Chen ◽  
Shixue Zheng ◽  
Gejiao Wang

A Gram-stain-positive, aerobic, motile, rod-shaped bacterium, designated strain Mn1-7T, was isolated from manganese mining soil in Tianjin, China. The closest phylogenetic relatives were Lysinibacillus massiliensis CCUG 49529T (97.2 % 16S rRNA gene sequence similarity), L. xylanilyticus XDB9T (96.7 %), L. sinduriensis JCM 15800T (96.2 %), L. odysseyi NBRC 100172T (95.9 %) and L. boronitolerans NBRC 103108T (95.4 %) (the type species of the genus). DNA–DNA hybridization values for strain Mn1-7T with the type strains of L. massiliensis and L. sinduriensis were 24.9 and 27.7 %, respectively. The genomic DNA G+C content was 38.4 mol%. The major menaquinone was MK-7 and the major fatty acids were iso-C15 : 0, iso-C16 : 0 and iso-C14 : 0. The major polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The cell-wall peptidoglycan was type A4α (l-Lys–d-Asp), and the predominant cell-wall sugar was xylose. DNA–DNA hybridization results and comparison of phenotypic and chemotaxonomic characters between strain Mn1-7T and the phylogenetically most closely related strains revealed that the isolate represents a novel species of the genus Lysinibacillus , for which the name Lysinibacillus manganicus sp. nov. is proposed. The type strain is Mn1-7T ( = DSM 26584T = CCTCC AB 2012916T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 1972-1981 ◽  
Author(s):  
Taishi Tsubouchi ◽  
Yasuhiro Shimane ◽  
Kozue Mori ◽  
Keiko Usui ◽  
Toshiki Hiraki ◽  
...  

A novel filamentous bacterium, designated strain JIR-001T, was isolated from hemipelagic sediment in deep seawater. This strain was non-motile, Gram-positive, aerobic, heterotrophic and thermophilic; colonies were of infinite form and ivory coloured with wrinkles between the centre and the edge of the colony on ISP2 medium. The isolate grew aerobically at 55–73 °C with the formation of aerial mycelia; spores were produced singly along the aerial mycelium. These morphological features show some similarities to those of the type strains of some species belonging to the family Thermoactinomycetaceae . Phylogenetic analysis based on 16S rRNA gene sequences confirmed that strain JIR-001T belongs to the family Thermoactinomycetaceae within the class Bacilli . Similarity levels between the 16S rRNA gene sequence of strain JIR-001T and those of the type strains of Thermoactinomycetaceae species were 85.5–93.5 %; highest sequence similarity was with Melghirimyces algeriensis NariEXT. In the DNA–DNA hybridization assays between strain JIR-001T and its phylogenetic neighbours the mean hybridization levels with Melghirimyces algeriensis NariEXT, Planifilum fimeticola H0165T, Planifilum fulgidum 500275T and Planifilum yunnanense LA5T were 5.3–7.5, 2.3–4.7, 2.1–4.8 and 2.5–4.9 %, respectively. The DNA G+C content of strain JIR-001T was 55.1 mol%. The major fatty acids were iso-C15 : 0, iso-C17 : 0, iso-C16 : 0 and C16 : 0. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylglycerol, glucolipid, phosphatidylserine, an amino-group containing phospholipid, an unknown phospholipid and two unknown lipids. The predominant menaquinone was MK-7 and the cell-wall peptidoglycan contained meso-diaminopimelic acid, glutamic acid and alanine. On the basis of phenotypic characteristics and 16S rRNA gene sequence comparisons, strain JIR-001T is considered to represent a novel species in a new genus of the family Thermoactinomycetaceae , for which the name Polycladomyces abyssicola gen. nov., sp. nov. is proposed. The type strain of Polycladomyces abyssicola is JIR-001T ( = JCM 18147T = CECT 8074T).


2012 ◽  
Vol 62 (Pt_5) ◽  
pp. 1061-1068 ◽  
Author(s):  
Hana Yi ◽  
Jang-Cheon Cho ◽  
Jongsik Chun

Two yellow, rod-shaped, Gram-reaction-negative, strictly aerobic bacterial strains, designated JC2682T and JC2681T, were isolated from a seawater sample of Jeju Island, Korea. The isolates required sea salts for growth and showed gliding motility. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strains JC2682T and JC2681T shared 96.9 % similarity and formed a robust monophyletic group within the radiation encompassing the family Flavobacteriaceae . This distinct clade, which had varying branch positions depending on the tree-making algorithm used, represents a new genus within the family Flavobacteriaceae . The predominant isoprenoid quinone (menaquinone 6, MK-6) and DNA G+C content (27–33 mol%) were consistent with its assignment to the family Flavobacteriaceae , but the polar lipid profile, fatty acid composition and overall phenotypic traits demonstrated that the test strains were not closely affiliated to any recognized genera. Based on data from the present polyphasic taxonomic study, strains JC2682T and JC2681T are considered to represent two novel species of a new genus in the family Flavobacteriaceae , for which the names Flavivirga jejuensis gen. nov., sp. nov. and Flavivirga amylovorans sp. nov. are proposed, respectively. The type strain of Flavivirga jejuensis is JC2682T ( = KACC 14158T  = JCM 17113T). The type strain of Flavivirga amylovorans is JC2681T ( = KACC 14157T  = JCM 17112T). Amended descriptions of the genera Psychroserpens and Lacinutrix are provided.


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2600-2606 ◽  
Author(s):  
Laure Mondani ◽  
Laurie Piette ◽  
Richard Christen ◽  
Dipankar Bachar ◽  
Catherine Berthomieu ◽  
...  

An actinobacterial strain, designated ViU22T, was isolated from a natural uranium-rich soil and was studied using a polyphasic approach. Cells formed orange-pigmented colonies, were rod-shaped, Gram-positive (non-staining method), non-motile and non-spore-forming. This organism grew in 0–4.5 % (w/v) NaCl and at 15–37 °C, with optimal growth occurring in 0.5 % (w/v) NaCl and at 30 °C. Comparative 16S rRNA gene sequence analysis revealed that the strain ViU22T belonged to the genus Microbacterium . It exhibited highest 16S rRNA gene sequence similarity with the type strains of Microbacterium testaceum (98.14 %) and Microbacterium binotii (98.02 %). The DNA–DNA relatedness of strains ViU22T with the most closely related type strains Microbacterium testaceum and Microbacterium binotii DSM 19164T was 20.10 % (±0.70) and 28.05 % (±0.35), respectively. Strain ViU22T possessed a type B2β peptidoglycan with partial substitution of glutamic acid by 3-hydroxy glutamic acid. The major menaquinones were MK-11 and MK-12. Major polar lipids detected in the strain ViU22T were diphosphatidylglycerol, phosphatidylglycerol, an unknown phospholipid and unknown glycolipids. The predominant fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0, a pattern reported for other Microbacterium species. The major cell-wall sugars were galactose, xylose and mannose and the DNA G+C content was 71 mol%. Together, the DNA–DNA hybridization results and the differentiating phenotypic characteristics, showed that strain ViU22T should be classified as the type strain of a novel species within the genus Microbacterium , for which the name Microbacterium lemovicicum sp. nov. is proposed. The type strain is ViU22T ( = ATCC BAA-2396T = CCUG 62198T = DSM 25044T).


2014 ◽  
Vol 64 (Pt_3) ◽  
pp. 710-718 ◽  
Author(s):  
Sukhpreet Kaur ◽  
Mir Yawar ◽  
P. Anil Kumar ◽  
K. Suresh

A Gram-stain-positive, rod-shaped, spore-forming and strictly anaerobic bacterium, designated UB-B.2T, was isolated from an industrial effluent anaerobic digester sample. It grew optimally at 30 °C and pH 7.0. Comparative analysis of the 16S rRNA gene sequence confirmed that strain UB-B.2T was closely related to Clostridium hathewayi DSM 13479T (97.84 % similarity), a member of rRNA gene cluster XIVa of the genus Clostridium , and formed a coherent cluster with other related members of the Blautia ( Clostridium ) coccoides rRNA group in phylogenetic analyses. The end products of glucose fermentation by strain UB-B.2T were acetate and propionate. The G+C content of the DNA was 51.4 mol%. Although strain UB-B.2T showed 97.8 % 16S rRNA gene sequence identity to the type strain of C. hathewayi , it exhibited only 38.4 % relatedness at the whole-genome level. It also showed differences from its closest phylogenetic relative, C. hathewayi DSM 13479T, in phenotypic characteristics such as hydrolysis of aesculin, starch and urea and fermentation end products. Both strains showed phenotypic differences from the members of rRNA gene cluster XIVa of the genus Clostridium . Based on these differences, C. hathewayi DSM 13479T and strain UB-B.2T were identified as representatives of a new genus of the family Clostridiaceae . Thus, we propose the reclassification of Clostridium hathewayi as Hungatella hathewayi gen. nov., comb. nov., the type species of the new genus (type strain DSM 13479T = CCUG 43506T = MTCC 10951T). Strain UB-B.2T ( = MTCC 11101T = DSM 24995T) is assigned to the novel species Hungatella effluvii gen. nov., sp. nov as the type strain.


2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 4158-4162 ◽  
Author(s):  
Xiao-Mei Fang ◽  
Jing Su ◽  
Hao Wang ◽  
Yu-Zhen Wei ◽  
Tao Zhang ◽  
...  

Two actinobacterial strains, CPCC 203464T and CPCC 203448, isolated from surface-sterilized stems of medicinal plants were subjected to a polyphasic taxonomic study. These two aerobic organisms formed pale yellow colonies on tryptic soy agar (TSA). Cells were Gram-stain-positive, non-acid-fast, non-motile, rod- or coccoid-like elements. Comparative 16S rRNA gene sequence analysis indicated that strains CPCC 203464T and CPCC 203448 were most closely related to the type strains of the species of the genus Williamsia . Chemotaxonomic properties such as containing meso-diaminopimelic acid in the cell wall, arabinose, galactose and ribose being the whole-cell hydrolysate sugars, phosphatidylethanolamine (PE), diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and phosphatidylinositol (PI) as the phospholipids, and C16 : 0, 10-methyl C18 : 0, C18 : 1ω9c, C16 : 1ω7c and/or iso-C15 : 0 2-OH as major fatty acids supported the affiliation of strains CPCC 203464T and CPCC 203448 to the genus Williamsia . The DNA–DNA hybridization values in combination with differentiating chemotaxonomic and physiological characteristics strongly suggested that these two isolates should be classified as representatives of a novel species of the genus Williamsia . The name Williamsia sterculiae sp. nov. is proposed, with strain CPCC 203464T ( = DSM 45741T = KCTC 29118T) as the type strain.


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