scholarly journals Bradyrhizobium agreste sp. nov., Bradyrhizobium glycinis sp. nov. and Bradyrhizobium diversitatis sp. nov., isolated from a biodiversity hotspot of the genus Glycine in Western Australia

2021 ◽  
Author(s):  
Milena Serenato Klepa ◽  
Luisa Caroline Ferraz Helene ◽  
Graham O’Hara ◽  
Mariangela Hungria
Keyword(s):  
Glycine Max ◽  
16S Rrna ◽  
Type Species ◽  
Housekeeping Genes ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Rrna Phylogeny ◽  
Glycine Tabacina ◽  
Symbiotic Properties

Strains of the genus Bradyrhizobium associated with agronomically important crops such as soybean (Glycine max) are increasingly studied; however, information about symbionts of wild Glycine species is scarce. Australia is a genetic centre of wild Glycine species and we performed a polyphasic analysis of three Bradyrhizobium strains—CNPSo 4010T, CNPSo 4016T, and CNPSo 4019T—trapped from Western Australian soils with Glycine clandestina, Glycine tabacina and Glycine max, respectively. The phylogenetic tree of the 16S rRNA gene clustered all strains into the Bradyrhizobium japonicum superclade; strains CNPSo 4010T and CNPSo 4016T had Bradyrhizobium yuanmingense CCBAU 10071T as the closest species, whereas strain CNPSo 4019T was closer to Bradyrhizobium liaoningense LMG 18230T. The multilocus sequence analysis (MLSA) with five housekeeping genes—dnaK, glnII, gyrB, recA and rpoB—confirmed the same clusters as the 16S rRNA phylogeny, but indicated low similarity to described species, with nucleotide identities ranging from 93.6 to 97.6% of similarity. Considering the genomes of the three strains, the average nucleotide identity and digital DNA–DNA hybridization values were lower than 94.97 and 59.80 %, respectively, with the closest species. In the nodC phylogeny, strains CNPSo 4010T and CNPSo 4019T grouped with Bradyrhizobium zhanjiangense and Bradyrhizobium ganzhouense , respectively, while strain CNPSo 4016T was positioned separately from the all symbiotic Bradyrhizobium species. Other genomic (BOX-PCR), phenotypic and symbiotic properties were evaluated and corroborated with the description of three new lineages of Bradyrhizobium . We propose the names of Bradyrhizobium agreste sp. nov. for CNPSo 4010T (=WSM 4802T=LMG 31645T) isolated from Glycine clandestina, Bradyrhizobium glycinis sp. nov. for CNPSo 4016T (=WSM 4801T=LMG 31649T) isolated from Glycine tabacina and Bradyrhizobium diversitatis sp. nov. for CNPSo 4019T (=WSM 4799T=LMG 31650T) isolated from G. max.

scholarly journals Taxonomic evaluation of Streptomyces albus and related species using multilocus sequence analysis and proposals to emend the description of Streptomyces albus and describe Streptomyces pathocidini sp. nov.

2014 ◽  
Vol 64 (Pt_3) ◽  
pp. 894-900 ◽  
Author(s):  
D. P. Labeda ◽  
J. R. Doroghazi ◽  
K.-S. Ju ◽  
W. W. Metcalf
Keyword(s):  
Sequence Analysis ◽  
16S Rrna ◽  
Type Strain ◽  
Type Species ◽  
Housekeeping Genes ◽  
Rrna Gene ◽  
16S Rrna Gene Sequences ◽  
Content Type ◽  
Link Type ◽  
Streptomyces Albus

In phylogenetic analyses of the genus Streptomyces using 16S rRNA gene sequences, Streptomyces albus subsp . albus NRRL B-1811T forms a cluster with five other species having identical or nearly identical 16S rRNA gene sequences. Moreover, the morphological and physiological characteristics of these other species, including Streptomyces almquistii NRRL B-1685T, Streptomyces flocculus NRRL B-2465T, Streptomyces gibsonii NRRL B-1335T and Streptomyces rangoonensis NRRL B-12378T are quite similar. This cluster is of particular taxonomic interest because Streptomyces albus is the type species of the genus Streptomyces . The related strains were subjected to multilocus sequence analysis (MLSA) utilizing partial sequences of the housekeeping genes atpD, gyrB, recA, rpoB and trpB and confirmation of previously reported phenotypic characteristics. The five strains formed a coherent cluster supported by a 100 % bootstrap value in phylogenetic trees generated from sequence alignments prepared by concatenating the sequences of the housekeeping genes, and identical tree topology was observed using various different tree-making algorithms. Moreover, all but one strain, S. flocculus NRRL B-2465T, exhibited identical sequences for all of the five housekeeping gene loci sequenced, but NRRL B-2465T still exhibited an MLSA evolutionary distance of 0.005 from the other strains, a value that is lower than the 0.007 MLSA evolutionary distance threshold proposed for species-level relatedness. These data support a proposal to reclassify S. almquistii , S. flocculus , S. gibsonii and S. rangoonensis as later heterotypic synonyms of S. albus with NRRL B-1811T as the type strain. The MLSA sequence database also demonstrated utility for quickly and conclusively confirming that numerous strains within the ARS Culture Collection had been previously misidentified as subspecies of S. albus and that Streptomyces albus subsp. patho cidicus should be redescribed as a novel species, Streptomyces pathocidini sp. nov., with the type strain NRRL B-24287T.

scholarly journals Bradyrhizobium huanghuaihaiense sp. nov., an effective symbiotic bacterium isolated from soybean (Glycine max L.) nodules

2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1951-1957 ◽  
Author(s):  
Yan Ming Zhang ◽  
Ying Li ◽  
Wen Feng Chen ◽  
En Tao Wang ◽  
Xin Hua Sui ◽  
...  
Keyword(s):  
Glycine Max ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Rrna Gene ◽  
The Novel ◽  
Symbiotic Genes ◽  
Content Type ◽  
Link Type ◽  
The 16S Rrna Gene

In a survey of the biodiversity and biogeography of rhizobia associated with soybean (Glycine max L.) in different sites of the Northern (Huang-Huai-Hai) Plain of China, ten strains were defined as representing a novel genomic species in the genus of Bradyrhizobium . They were distinguished from defined species in restriction fragment length polymorphism (RFLP) analysis of the 16S rRNA gene and the 16S–23S rRNA gene intergenic spacer (IGS). In BOX-PCR, these strains presented two patterns that shared 94 % similarity, demonstrating that they were a homogenous group with limited diversity. In phylogenetic analyses of the 16S rRNA gene, IGS and housekeeping gene sequences, four representative strains formed a distant lineage within the genus Bradyrhizobium , which was consistent with the results of DNA–DNA hybridization. The strains of this novel group formed effective nodules with G. max, Glycine soja and Vigna unguiculata in cross-nodulation tests and harboured symbiotic genes (nodC and nifH) identical to those of reference strains of Bradyrhizobium japonicum , Bradyrhizobium liaoningense and ‘Bradyrhizobium daqingense’ originating from soybean, implying that the novel group may have obtained these symbiotic genes by lateral gene transfer. In analyses of cellular fatty acids and phenotypic features, some differences were found between the novel group and related Bradyrhizobium species, demonstrating that the novel group is distinct phenotypically from other Bradyrhizobium species. Based upon the data obtained, these strains are proposed to represent a novel species, Bradyrhizobium huanghuaihaiense sp. nov., with CCBAU 23303T ( = LMG 26136T  = CGMCC 1.10948T  = HAMBI 3180T) as the type strain. The DNA G+C content of strain CCBAU 23303T is 61.5 mol% (T m).

scholarly journals Pseudomonas karstica sp. nov. and Pseudomonas spelaei sp. nov., isolated from calcite moonmilk deposits from caves

2020 ◽  
Vol 70 (9) ◽  
pp. 5131-5140 ◽  
Author(s):  
Pavel Švec ◽  
Marcel Kosina ◽  
Michal Zeman ◽  
Pavla Holochová ◽  
Stanislava Králová ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
Housekeeping Genes ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

A taxonomic study of two fluorescent Pseudomonas strains (HJ/4T and SJ/9/1T) isolated from calcite moonmilk samples obtained from two caves in the Moravian Karst in the Czech Republic was carried out. Results of initial 16S rRNA gene sequence analysis assigned both strains into the genus Pseudomonas and showed Pseudomonas yamanorum 8H1T as their closest neighbour with 99.8 and 99.7 % 16S rRNA gene similarities to strains HJ/4T and SJ/9/1T, respectively. Subsequent sequence analysis of rpoD, rpoB and gyrB housekeeping genes confirmed the highest similarity of both isolates to P. yamanorum 8H1T, but phylogeny and sequences similarities implied that they are representatives of two novel species within the genus Pseudomonas . Further study comprising whole-genome sequencing followed by average nucleotide identity and digital DNA–DNA hybridization calculations, repetitive sequence-based PCR fingerprinting with the REP and ERIC primers, automated ribotyping with the EcoRI restriction endonuclease, cellular fatty acid analysis, quinone and polar lipid characterization, and extensive biotyping confirmed clear separation of both analysed strains from the remaining Pseudomonas species and showed that they represent two novel species within the genus Pseudomonas for which the names Pseudomonas karstica sp. nov. (type strain HJ/4T=CCM 7891T=LMG 27930T) and Pseudomonas spelaei sp. nov. (type strain SJ/9/1T=CCM 7893T=LMG 27931T) are suggested.

scholarly journals Pseudomonas fildesensis sp. nov., a psychrotolerant bacterium isolated from Antarctic soil of King George Island, South Shetland Islands

2020 ◽  
Vol 70 (5) ◽  
pp. 3255-3263 ◽  
Author(s):  
Maria S. Pavlov ◽  
Felipe Lira ◽  
José Luis Martinez ◽  
Jorge Olivares-Pacheco ◽  
Sergio H. Marshall
Keyword(s):  
16S Rrna ◽  
Type Species ◽  
Bacterial Species ◽  
Housekeeping Genes ◽  
South Shetland Islands ◽  
Rrna Gene ◽  
King George Island ◽  
Content Type ◽  
Link Type ◽  
Pseudomonas Veronii

The strain KG01T was isolated from a soil sample from King George Island, Antarctica. Cells of KG01T are rod-shaped and motile by means of multiple polar flagella. The absence of arginine dihydrolase activity could be a key feature to readily distinguish KG01T from its closest phylogenetic relative species. The main fatty acids of the strain include summed feature 3 (C16 : 1 ω7c and/or C15 : 0 iso 2-OH), C16 : 0 and C18 : 1 ω7c. Phylogenetic analysis based on the 16S rRNA gene sequence and on a multilocus sequence analysis (MLSA) using housekeeping genes (16S rRNA, rpoB, rpoD, gyrB) were carried out. These analyses allowed us to include the strain within the Pseudomonas fluorescens group, presenting the highest similarity of multilocus sequence with Pseudomonas veronii LMG 17761T (96.67 %). The genome of KG01T was sequenced and in silico compared with genomes of the most closely related species of the P. fluore scens group. The average nucleotide identity (ANIb) and average amino acid identity (AAI) values of the species phylogenetically closest to KG01T were less than 95–96 %, threshold currently accepted to define strain as belonging to a bacterial species, the highest scores being those to Pseudomonas veronii LMG 17761T (87.98 %) and Pseudomonas marginalis ICMP 3553T (91.90 %). Therefore, the phenotypic and genotypic analyses results, allow us to propose that KG01T represents a member of a novel species of the genus Pseudomonas , for which the name Pseudomonas fildesensis is proposed, and KG01T (=CECT 9084T;=DSM 102036T) is established as the type strain .

Nitrosopumilus zosterae sp. nov., an autotrophic ammonia-oxidizing archaeon of phylum Thaumarchaeota isolated from coastal eelgrass sediments of Japan

2021 ◽  
Vol 71 (8) ◽  
Author(s):  
Tatsunori Nakagawa ◽  
Mori Koji ◽  
Akira Hosoyama ◽  
Atsushi Yamazoe ◽  
Yuki Tsuchiya ◽  
...  
Keyword(s):  
16S Rrna ◽  
Type Species ◽  
Ammonia Oxidation ◽  
Housekeeping Genes ◽  
Amino Acid Sequences ◽  
Salinity Range ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Ph Range

A novel mesophilic and aerobic ammonia-oxidizing archaeon of the phylum Thaumarchaeota , strain NM25T, was isolated from coastal eelgrass zone sediment sampled in Shimoda (Japan). The cells were rod-shaped with an S-layer cell wall. The temperature range for growth was 20–37 °C, with an optimum at 30 °C. The pH range for growth was pH 6.1–7.7, with an optimum at pH 7.1. The salinity range for growth was 5–40 %, with an optimum range of 15–32 %. Cells obtained energy from ammonia oxidation and used bicarbonate as a carbon source. Utilization of urea was not observed for energy generation and growth. Strain NM25T required a hydrogen peroxide scavenger, such as α-ketoglutarate, pyruvate or catalase, for sustained growth on ammonia. Growth of strain NM25T was inhibited by addition of low concentrations of some organic compounds and organic mixtures, including complete inhibition by glycerol, peptone and yeast extract. Phylogenetic analysis of four concatenated housekeeping genes (16S rRNA, rpoB, rpsI and atpD) and concatenated AmoA, AmoB, AmoC amino acid sequences indicated that the isolate is similar to members of the genus Nitrosopumilus . The closest relative is Nitrosopumilus ureiphilus PS0T with sequence similarities of 99.5 % for the 16S rRNA gene and 97.2 % for the amoA gene. Genome relatedness between strain NM25T and N. ureiphilus PS0T was assessed by average nucleotide identity and digital DNA–DNA hybridization, giving results of 85.4 and 40.2 %, respectively. On the basis of phenotypic, genotypic and phylogenetic data, strain NM25T represents a novel species of the genus Nitrosopumilus , for which the name sp. nov, is proposed. The type strain is NM25T (=NBRC 111181T=ATCC TSD-147T).

Streptococcus troglodytidis sp. nov., isolated from a foot abscess of a chimpanzee (Pan troglodytes)

2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 449-453 ◽  
Author(s):  
Michael Zhang ◽  
Lifang Yan ◽  
Guan Zhu ◽  
Michael Holifield ◽  
Donna Todd ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Pan Troglodytes ◽  
Type Species ◽  
Phylogenetic Analyses ◽  
Housekeeping Genes ◽  
Rrna Gene ◽  
Positive Staining ◽  
Content Type ◽  
Link Type

A facultative anaerobic, non-motile, non-spore-forming, Gram-positive-staining, coccus-shaped bacterium was isolated from an abscess on the right foot of a chimpanzee (Pan troglodytes). The colonies were β-haemolytic. Catalase and oxidase activities were negative. The Lancefield group B antigen was expressed. On the basis of morphological and biochemical characteristics, the bacterium was tentatively identified as a streptococcal species. 16S rRNA gene sequence analysis indicated that the bacterium shared 96.7 %, 96.4 %, 96.1 %, 95.8 % and 95.7 % sequence similarities with Streptococcus gordonii , S. cristatus , S. intermedius , S. anginosus and S. constellatus , respectively. Phylogenetic analyses based on the sequences of the 16S rRNA gene and housekeeping genes encoding d-alanine : d-alanine ligase (ddl), the β-subunit of RNA polymerase (rpoB) and manganese-dependent superoxide dismutase (sodA) revealed that the bacterium represented a novel species closely related to, albeit different from, S. gordonii , S. cristatus and the anginosus streptococci. The name Streptococcus troglodytidis sp. nov. is proposed. The type strain is M09-11185T ( = ATCC BAA-2337T = KCTC 33006T).

Streptomyces harbinensis sp. nov., an endophytic, ikarugamycin-producing actinomycete isolated from soybean root [Glycine max (L.) Merr.]

2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3579-3584 ◽  
Author(s):  
Chongxi Liu ◽  
Xiangjing Wang ◽  
Junwei Zhao ◽  
Qianfeng Liu ◽  
Liang Wang ◽  
...  
Keyword(s):  
Glycine Max ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Soybean Root ◽  
Link Type ◽  
Type Strains

A novel ikarugamycin-producing actinomycete, designated strain NEAU-Da3T, was isolated from soybean root [Glycine max (L.) Merr.] and characterized using a polyphasic approach. 16S rRNA gene sequence similarity studies showed that strain NEAU-Da3T belonged to the genus Streptomyces , and was most closely related to Streptomyces carpaticus NRRL B-16359T (99.5 %), Streptomyces cheonanensis VC-A46T (99.3 %) and Streptomyces xiamenensis MCCC 1A01550T (97.2 %); similarities to other type strains of species of the genus Streptomyces were lower than 97.1 %. The maximum-likelihood phylogenetic tree based on 16S rRNA gene sequences showed that the isolate formed a distinct phyletic line with S. carpaticus NRRL B-16359T, S. cheonanensis VC-A46T and S. xiamenensis MCCC 1A01550T. This branching pattern was also supported by the tree reconstructed with the neighbour-joining method. A comparative study between strain NEAU-Da3T and the type strains of the closest related species of the genus Streptomyces revealed that it differed from them in morphological, physiological and biochemical characteristics. Therefore, it is proposed that strain NEAU-Da3T represents a novel species of the genus Streptomyces , for which the name Streptomyces harbinensis sp. nov. is proposed. The type strain is NEAU-Da3T ( = CGMCC 4.7047T = DSM 42076T).

scholarly journals Burkholderia rhynchosiae sp. nov., isolated from Rhynchosia ferulifolia root nodules

2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 3944-3949 ◽  
Author(s):  
Sofie E. De Meyer ◽  
Margo Cnockaert ◽  
Julie K. Ardley ◽  
Robert D. Trengove ◽  
Giovanni Garau ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Sequence Similarity ◽  
Root Nodules ◽  
Housekeeping Genes ◽  
Rrna Gene ◽  
Closely Related Species ◽  
Content Type ◽  
Link Type

Two strains of Gram-stain-negative, rod-shaped bacteria were isolated from root nodules of the South African legume Rhynchosia ferulifolia and authenticated on this host. Based on phylogenetic analysis of the 16S rRNA gene, strains WSM3930 and WSM3937T belonged to the genus Burkholderia , with the highest degree of sequence similarity to Burkholderia terricola (98.84 %). Additionally, the housekeeping genes gyrB and recA were analysed since 16S rRNA gene sequences are highly similar between closely related species of the genus Burkholderia . The results obtained for both housekeeping genes, gyrB and recA, showed the highest degree of sequence similarity of the novel strains towards Burkholderia caledonica LMG 19076T (94.2 % and 94.5 %, respectively). Chemotaxonomic data, including fatty acid profiles and respiratory quinone data supported the assignment of strains WSM3930 and WSM3937T to the genus Burkholderia . DNA–DNA hybridizations, and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strains WSM3930 and WSM3937T from the most closely related species of the genus Burkholderia with validly published names. We conclude, therefore, that these strains represent a novel species for which the name Burkholderia rhynchosiae sp. nov. is proposed, with strain WSM3937T ( = LMG 27174T = HAMBI 3354T) as the type strain.

scholarly journals Rufibacter hautae sp. nov., a red-pigmented bacterium from freshwater lake sediment, and proposal of Rufibacter quisquiliarum as a latter heterotypic synonym of Rufibacter ruber

2020 ◽  
Vol 70 (11) ◽  
pp. 5950-5957 ◽  
Author(s):  
Jia Zhou ◽  
Wen-Wen Ma ◽  
Jian-Hang Qu ◽  
Hai-Feng Li ◽  
Bang-Bang Yang ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Phylogenetic Analyses ◽  
Housekeeping Genes ◽  
Phylogenetic Position ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

A taxonomic identification using a polyphasic approach was performed on strain NBS58-1T, which was isolated from the interfacial sediment of Taihu Lake in China. Strain NBS58-1T was Gram-stain-negative, aerobic, non-spore-forming and catalase-positive. Phylogenetic analyses based on 16S rRNA gene and three housekeeping genes (rpoB, gyrB and dnaK) sequences supported the position that strain NBS58-1T should be classified within the genus Rufibacter . The 16S rRNA gene sequence of strain NBS58-1T possessed the highest similarity to Rufibacter sediminis H-1T (96.60 %), followed by Rufibacter glacialis MDT1-10-3T (96.17 %). And the ANI value between strain NBS58-1T and R. glacialis MDT1-10-3T was 79.3 %. The respiratory quinone was menaquinone 7 (MK-7). The major cellular fatty acids comprised iso-C15 : 0 and summed feature 3. Phosphatidylethanolamine, two unidentified phospholipids and four unidentified lipids were the main polar lipids. The genomic DNA G+C content was 51.3 mol%. Based on phenotypic features and phylogenetic position, a novel species with the name Rufibacter hautae sp. nov. is proposed. The type strain is NBS58-1T=(KACC 21309T=MCCC 1K04037T). We also proposed Rufibacter quisquiliarum as a latter heterotypic synonym of Rufibacter ruber .

scholarly journals Faecalicoccus acidiformans gen. nov., sp. nov., isolated from the chicken caecum, and reclassification of Streptococcus pleomorphus (Barnes et al. 1977), Eubacterium biforme (Eggerth 1935) and Eubacterium cylindroides (Cato et al. 1974) as Faecalicoccus pleomorphus comb. nov., Holdemanella biformis gen. nov., comb. nov. and Faecalitalea cylindroides gen. nov., comb. nov., respectively, within the family Erysipelotrichaceae

2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3877-3884 ◽  
Author(s):  
Celine De Maesschalck ◽  
Filip Van Immerseel ◽  
Venessa Eeckhaut ◽  
Siegrid De Baere ◽  
Margo Cnockaert ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

Strains LMG 27428T and LMG 27427 were isolated from the caecal content of a chicken and produced butyric, lactic and formic acids as major metabolic end products. The genomic DNA G+C contents of strains LMG 27428T and LMG 27427 were 40.4 and 38.8 mol%. On the basis of 16S rRNA gene sequence similarity, both strains were most closely related to the generically misclassified Streptococcus pleomorphus ATCC 29734T. Strain LMG 27428T could be distinguished from S. pleomorphus ATCC 29734T based on production of more lactic acid and less formic acid in M2GSC medium, a higher DNA G+C content and the absence of activities of acid phosphatase and leucine, arginine, leucyl glycine, pyroglutamic acid, glycine and histidine arylamidases, while strain LMG 27428 was biochemically indistinguishable from S. pleomorphus ATCC 29734T. The novel genus Faecalicoccus gen. nov. within the family Erysipelotrichaceae is proposed to accommodate strains LMG 27428T and LMG 27427. Strain LMG 27428T ( = DSM 26963T) is the type strain of Faecalicoccus acidiformans sp. nov., and strain LMG 27427 ( = DSM 26962) is a strain of Faecalicoccus pleomorphus comb. nov. (type strain LMG 17756T = ATCC 29734T = DSM 20574T). Furthermore, the nearest phylogenetic neighbours of the genus Faecalicoccus are the generically misclassified Eubacterium cylindroides DSM 3983T (94.4 % 16S rRNA gene sequence similarity to strain LMG 27428T) and Eubacterium biforme DSM 3989T (92.7 % 16S rRNA gene sequence similarity to strain LMG 27428T). We present genotypic and phenotypic data that allow the differentiation of each of these taxa and propose to reclassify these generically misnamed species of the genus Eubacterium formally as Faecalitalea cylindroides gen. nov., comb. nov. and Holdemanella biformis gen. nov., comb. nov., respectively. The type strain of Faecalitalea cylindroides is DSM 3983T = ATCC 27803T = JCM 10261T and that of Holdemanella biformis is DSM 3989T = ATCC 27806T = CCUG 28091T.

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