Reclassification of [Haemophilus] haemoglobinophilus as Canicola haemoglobinophilus gen. nov., comb. nov. including Bisgaard taxon 35

Author(s):  
Henrik Christensen ◽  
Peter Kuhnert ◽  
Geoffrey Foster ◽  
Magne Bisgaard

[ Haemophilus ] haemoglobinophilus and the unpublished Bisgaard taxon 35 are associated with respiratory and urogenital tract infections in dogs. A total of 21 strains including the type strain of [ Haemophilus ] haemoglobinophilus were included in the investigation. Strains of [ Haemophilus ] haemoglobinophilus and taxon 35 formed a monophyletic group demonstrating at least 97.8 and 96.5% similarities within the group based upon 16S rRNA and rpoB gene sequence comparisons, respectively. Glaesserella australis was the most closely related species to [ Haemophilus ] haemoglobinophilus and taxon 35 with 96.1 % 16S rRNA gene sequence similarity which is slightly higher than the 95 % separating most genera of the family Pasteurellaceae . However, the conserved protein sequence phylogeny documented a unique position of [ Haemophilus ] haemoglobinophilus with only 81 % identity to the most closely related species, genomospecies 1 of the genus Rodentibacter which is lower than the 85 % separating most genera of the family Pasteurellaceae . The conserved protein sequence identity to Haemophilus influenzae , the type species of the genus, was 77%, demonstrating that [ Haemophilus ] haemoglobinophilus is not properly classified as a member of the genus Haemophilus . On the basis of the phylogenetic comparisons, the taxa [ Haemophilus ] haemoglobinophilus and taxon 35 are proposed to be included with a novel genus Canicola with one species, Canicola haemoglobinophilus which is reclassified from [ Haemophilus ] haemoglobinophilus. Phenotypic characters obtained with isolates genetically approved to represent Canicola haemoglobinophilus were in accordance with those of the members of the family Pasteurellaceae, and the novel genus can be separated from most of the existing genera by a positive catalase reaction, lack of V-factor requirement for growth, lack of haemolysis of blood agar and negative Voges–Proskauer and urease tests. The novel genus cannot be separated by biochemical and physiological characteristics alone from the genera Aggregatibacter , Avibacterium , Frederiksenia and Spirabiliibacterium . However, MALDI-TOF mass spectroscopy and also RpoB amino acid signatures allowed a clear separation from these taxa, supporting the existence of a novel genus. The DNA G+C content is 37.0–37.8 mol% for the genus, based on the whole genomic sequences. The type strain of Canicola haemoglobinophilus is CCUG 3714T (=ATCC 19416T=NCTC 1659T) isolated in 1901 from the prepuce of a dog in Germany.

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).


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_4) ◽  
pp. 1214-1218 ◽  
Author(s):  
Julia Downes ◽  
Floyd E. Dewhirst ◽  
Anne C. R. Tanner ◽  
William G. Wade

Five strains of anaerobic, Gram-negative bacilli isolated from the human oral cavity were subjected to a comprehensive range of phenotypic and genotypic tests and were found to comprise a homogeneous group. Phylogenetic analysis of full-length 16S rRNA gene sequences showed that these strains represented a novel group within the family Prevotellaceae , and the most closely related species was Prevotella tannerae . P. tannerae and the novel taxon are deeply branched from the genus Prevotella , with sequence identities to the type strain of the type species of Prevotella , Prevotella melaninogenica , of 82.2 and 85.6 %, respectively. The novel genus Alloprevotella gen. nov. is proposed to accommodate the novel species Alloprevotella rava gen. nov., sp. nov. and the previously named Prevotella tannerae Moore et al. 1994 as Alloprevotella tannerae gen. nov., comb. nov. The type species is Alloprevotella tannerae. The type strain of Alloprevotella rava is 81/4-12T ( = DSM 22548T  = CCUG 58091T) and the type strain of Alloprevotella tannerae is ATCC 51259T  = CCUG 34292T  = CIP 104476T  = NCTC 13073T. Alloprevotella rava is weakly to moderately saccharolytic and produces moderate amounts of acetic acid and major amounts of succinic acid as end products of fermentation. Strains are sensitive to 20 % bile and hydrolyse gelatin. The principal cellular long-chain fatty acids are anteiso-C15 : 0, iso-C15 : 0, C16 : 0, iso-C17 : 0 and iso-C17 : 0 3-OH. The G+C content of the DNA of the type strain is 47 mol%.


2020 ◽  
Vol 70 (8) ◽  
pp. 4774-4781 ◽  
Author(s):  
Annemarie Siebert ◽  
Christopher Huptas ◽  
Mareike Wenning ◽  
Siegfried Scherer ◽  
Etienne V. Doll

Three strains of a Gram-stain-positive, catalase-negative, facultative anaerobic, and coccoid species were isolated from German bulk tank milk. Phylogenetic analyses based on the 16S rRNA gene sequences indicated that the three strains (WS4937T, WS4759 and WS5303) constitute an independent phylogenetic lineage within the family Aerococcaceae with Facklamia hominis CCUG 36813T (93.7–94.1 %) and Eremococcus coleocola M1831/95/2T (93.5 %) as most closely related type species. The unclassified strains demonstrated variable growth with 6.5 % (w/v) NaCl and tolerated pH 6.5–9.5. Growth was observed from 12 to 39 °C. Their cell-wall peptidoglycan belongs to the A1α type (l-Lys-direct) consisting of alanine, glutamic acid and lysine. The predominant fatty acids were C16 : 1 ω9c, C16 : 0 and C18 : 1 ω9c and in the polar lipids profile three glycolipids, a phospholipid, phosphatidylglycerol, phosphoglycolipid and diphosphatidylglycerol were found. The G+C content of strain WS4937T was 37.4 mol% with a genome size of ~3.0 Mb. Based on phylogenetic, phylogenomic and biochemical characterizations, the isolates can be demarcated from all other genera of the family Aerococcaceae and, therefore, the novel genus Fundicoccus gen. nov. is proposed. The type species of the novel genus is Fundicoccus ignavus gen. nov., sp. nov. WS4937T (=DSM 109652T=LMG 31441T).


Author(s):  
Tobias Eisenberg ◽  
Sabine Gronow ◽  
Jane Falgenhauer ◽  
Can Imirzalioglu ◽  
Kristin Mühldorfer ◽  
...  

Members of the genus Sneathia are fastidious bacteria that predominantly colonise the female genital tract and are significantly associated with reproductive disorders and genital and neonatal disease. From a taxonomical perspective, the genus only comprises the species Sneathia sanguinegens . Numerous reports on a second species, ‘Sneathia amnii’, have been published, but the name has never been validated. The same is the case for ‘Leptotrichia amnionii’, which was previously shown to belong to the same species as ‘Sneathia amnii’. We studied strains DSM 16631T and DSM 16630, which have been identified and deposited as ‘Leptotrichia amnionii’ previously. At the time of isolation, these strains were found to be most closely related to, but clearly different from, Sneathia sanguinegens based on 16S rRNA gene sequence similarities. Both strains proved to be almost indistinguishable from ‘Sneathia amnii’ based on molecular, morphological and physiological traits. The 16S rRNA gene sequence analysis revealed that strain DSM 16631T was assigned to the genus Sneathia with a sequence similarity of 95.47 % to Sneathia sanguinegens CCUG 41628T, followed by type strains of Caviibacter abscessus (93.03 %), Oceanivirga salmonicida (92.68 %) and Oceanivirga miroungae (91.97 %) as the next closely related members of the Leptotrichiaceae . The novel species was also clearly differentiated from other related taxa by core genome phylogeny, average nucleotide and amino acid identities, in silico DNA–DNA hybridization and MALDI-TOF MS. With respect to chemotaxonomic and physiological patterns, strains DSM 16631T and DSM 16630 were again highly similar to Sneathia sanguinegens . On the basis of these data, we propose the novel species Sneathia vaginalis sp. nov. with the type strain DSM 16631T (=CCUG 52977T=CCUG 52889AT) and a second strain DSM 16630 (=CCUG 52976=CCUG 52888) that were both isolated from bloodstream infections in women with puerperal fever in France. The G+C content of the DNA of the type strain is 28.4 mol% and the genome size is 1.28 Mbp. Based on the observed extremely high similarities of genotypic and phenotypic traits of the novel proposed species to those reported for ‘Sneathia amnii’, we recommend using this new name in all further publications on this taxon.


2020 ◽  
Vol 70 (3) ◽  
pp. 2147-2154 ◽  
Author(s):  
Guang-Da Feng ◽  
Xian-Jiao Zhang ◽  
Song-Zhen Yang ◽  
An-Zhang Li ◽  
Qing Yao ◽  
...  

During a phylogenetic analysis of Sphingorhabdus and its closely related genera in the family Sphingomonadaceae , we found that the genus Sphingorhabdus and the species Sphingopyxis baekryungensis might not be properly assigned in the taxonomy. Phylogenetic, phenotypic and chemotaxonomic characterizations clearly showed that the genus Sphingorhabdus should be reclassified into two genera (Clade I and Clade II), for which the original genus name, Sphingorhabdus , is proposed to be retained only for Clade I, and a new genus named as Parasphingorhabdus gen. nov. is proposed for Clade II with four new combinations: Parasphingorhabdus marina comb. nov., Parasphingorhabdus litoris comb. nov., Parasphingorhabdus flavimaris comb. nov. and Parasphingorhabdus pacifica comb. nov. Moreover, Sphingopyxis baekryungensis should represent a novel genus in the family Sphingomonadaceae , for which the name Novosphingopyxis gen. nov. is proposed, with a combination of Novosphingopyxis baekryungensis comb. nov. The study provides a new insight into the taxonomy of closely related genera in the family Sphingomonadaceae .


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1853-1858 ◽  
Author(s):  
Junwei Cao ◽  
Qiliang Lai ◽  
Guizhen Li ◽  
Zongze Shao

A taxonomic study was carried out on strain GCS-AE-31T, which was isolated from a phenol-degrading consortium, enriched from coking wastewater activated sludge of the Beijing Shougang Company Limited during the screening of phenol-degrading bacteria. Cells of strain GCS-AE-31T were Gram-stain-negative, short rods, motile by gliding, oxidase- and catalase-positive. Growth was observed at salinities of 0–3 % and at temperatures of 10–37 °C. On the basis of 16S rRNA gene sequence similarity, strain GCS-AE-31T was most closely related to Pedobacter saltans LMG 10337T (96.17 %), but it showed low similarity to all other species of the genus Pedobacter (89.28–92.45 %). It also showed low 16S rRNA gene similarity to all other species of the family Sphingobacteriaceae (87.25–92.45 %) examined. The dominant fatty acids were iso-C15 : 0, summed feature 3 (C16 : 1ω7c/C16 : 1ω6c), anteiso-C15 : 0 and iso-C17 : 0 3-OH. The menaquinones were MK-7 (95.5 %) and MK-6 (4.5 %). The polar lipids were phosphatidylethanolamine, three aminolipids and three unknown phospholipids. Sphingolipid was present. The G+C content of the chromosomal DNA was 36.2 mol%. According to its phylogenetic position and phenotypic traits, the novel strain could not be assigned to the genus Pedobacter ; it should be classified as representing a novel species of a novel genus in the family Sphingobacteriaceae , for which the name Pseudopedobacter beijingensis gen. nov., sp. nov. is proposed (type strain GCS-AE-31T = MCCC 1A01299T = CGMCC 1.12329T = LMG 27180T). The misclassified species Pedobacter saltans is transferred to the novel genus as Pseudopedobacter saltans comb. nov. (type strain LMG 10337T = MCCC 1A06472T = DSM 12145T = CCUG 39354T = CIP 105500T = JCM 21818T = NBRC 100064T).


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 314-320 ◽  
Author(s):  
Youhei Fukui ◽  
Mahiko Abe ◽  
Masahiro Kobayashi ◽  
Hiroaki Saito ◽  
Hiroshi Oikawa ◽  
...  

Three Gram-negative, stalked, motile bacteria, designated 0C-2-2T, 0C-17 and LNM-3, were isolated from the red alga Porphyra yezoensis. 16S rRNA gene sequence analysis revealed that the three novel strains belonged to the family Hyphomonadaceae , and were closely related to Litorimonas taeanensis G5T (96.5 % 16S rRNA gene sequence similarity) and Hellea balneolensis 26III/A02/215T (94.3 %). The DNA G+C contents of the novel isolates (58.5–60.2 mol%) were clearly distinguished from those of L. taeanensis G5T (47.1 mol%) and H. balneolensis DSM 19091T (47.9 mol%). The G+C content of L. taeanensis G5T obtained in this study was quite different from a previous report (63.6 mol%). DNA–DNA hybridization experiments showed that the novel strains constituted a single species. Eleven phenotypic features of the three isolates differed from those of both related genera. The predominant respiratory quinone was ubiquinone-10 and the major fatty acid was C18 : 1ω7c. On the basis of this polyphasic taxonomic analysis, the novel strains represent a novel genus and species, for which the name Algimonas porphyrae gen. nov., sp. nov. is proposed. The type strain of Algimonas porphyrae is 0C-2-2T ( = LMG 26424T  = NBRC 108216T).


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 288-297 ◽  
Author(s):  
Lyudmila A. Romanenko ◽  
Naoto Tanaka ◽  
Vassilii I. Svetashev ◽  
Enevold Falsen

A group of five Gram-negative, aerobic, halotolerant, non-pigmented bacteria isolated from shallow sediment samples and invertebrate specimens collected from the Gulf of Alaska and the Sea of Japan was subjected to taxonomic study. On the basis of 16S rRNA gene sequence analysis, the novel isolates were affiliated to the genus Cobetia , sharing the highest sequence similarity of 99.3–99.9 % with Cobetia marina DSM 4741T. DNA–DNA hybridization experiments between and among the novel strains and C. marina DSM 4741T and Cobetia crustatorum JCM 15644T revealed that the five strains represent three separate genospecies, which could be differentiated in their morphological, physiological and biochemical characteristics. Halomonas halodurans NBRC 15607T was included in this study as it has recently been reported to exhibit high 16S rRNA gene sequence similarity to C. marina DSM 4741T, and it showed a high DNA relatedness value of 96 % with C. marina DSM 4741T, indicating that they belong to the same species. On the basis of phylogenetic analysis, DNA–DNA hybridization and phenotypic characterization, three novel species are proposed, named Cobetia amphilecti sp. nov. (type strain KMM 1561T  = NRIC 0815T  = CCUG 49560T), Cobetia litoralis sp. nov. (type strain KMM 3880T  = NRIC 0814T  = CCUG 49563T) and Cobetia pacifica sp. nov. (type strain KMM 3879T  = NRIC 0813T  = CCUG 49562T). It is also proposed that Halomonas halodurans is a later heterotypic synonym of Cobetia marina , and emended descriptions of the genus Cobetia and the species Cobetia marina are provided.


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 504-509 ◽  
Author(s):  
Inwoo Baek ◽  
Boram Seo ◽  
Imchang Lee ◽  
Hana Yi ◽  
Jongsik Chun

An ivory/yellow, Gram-stain-negative, short-rod-shaped, aerobic bacterial strain, designated JC2948T, was isolated from a soil sample taken from Gwanak Mountain, Republic of Korea. 16S rRNA gene sequence analysis indicated that strain JC2948T belongs to the genus Burkholderia . The test strain showed highest sequence similarities to Burkholderia tropica LMG 22274T (97.6 %), Burkholderia acidipaludis NBRC 101816T (97.5 %), Burkholderia tuberum LMG 21444T (97.5 %), Burkholderia sprentiae LMG 27175T (97.4 %), Burkholderia terricola LMG 20594T (97.3 %) and Burkholderia diazotrophica LMG 26031T (97.1 %). Based on average nucleotide identity (ANI) values, the new isolate represents a novel genomic species as it shows less than 90 % ANI values with other closely related species. Also, other phylosiological and biochemical comparisons allowed the phenotypic differentiation of strain JC2948T from other members of the genus Burkholderia . Therefore, we suggest that this strain should be classified as the type strain of a novel species of the genus Burkholderia . The name Burkholderia monticola sp. nov. (type strain, JC2948T = JCM 19904T = KACC 17924T) is proposed.


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