scholarly journals Neisseria weaveri Andersen et al. 1993 is a later heterotypic synonym of Neisseria weaveri Holmes et al. 1993

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 463-464 ◽  
Author(s):  
Hana Yi ◽  
Jongsik Chun

Two species of the genus Neisseria , namely Neisseria weaveri Andersen et al. 1993 and Neisseria weaveri Holmes et al. 1993, were simultaneously proposed and described in the same volume of International Journal of Systematic Bacteriology, and have been maintained as heterotypic homonyms. However, the identical 16S rRNA gene sequence and high (99.1 %) average nucleotide identity (ANI) between the genome sequences of the two type strains implied that these two taxa should be united as a single genomic species. To clarify their taxonomic status, phenotypic properties including enzymic activities and substrate-utilization profiles were investigated. The results demonstrated that the two taxa have no pronounced differences and should constitute a single species. Therefore, the reclassification of N. weaveri Andersen et al. 1993 as a later heterotypic synonym of N. weaveri Holmes et al. 1993 is proposed.

2015 ◽  
Vol 65 (Pt_3) ◽  
pp. 1083-1085 ◽  
Author(s):  
Sunhee Hong ◽  
Christine E. Farrance ◽  
Anne Russell ◽  
Hana Yi

Two species of the genus Deinococcus , namely Deinococcus wulumuqiensis Wang et al. 2010 and Deinococcus xibeiensis Wang et al. 2010, were simultaneously proposed and described in the same publication. However, the identical 16S rRNA gene sequence of the two type strains strongly raised the probability of their relatedness at the species level. Thus, the genomic relatedness of the two species of the genus Deinococcus was investigated here to clarify their taxonomic status. The high (99.9 %) average nucleotide identity (ANI) between the genome sequences of the two type strains suggested that the two species are synonymous. Additional phenotypic data including enzymic activities and substrate-utilization profiles showed no pronounced differences between the type strains of the two species. Data from this study demonstrated that the two taxa constitute a single species. According to Rule 42 of the Bacteriological Code, we propose that D. xibeiensis Wang et al. 2010 should be reclassified as a subjective heterotypic synonym of D. wulumuqiensis Wang et al. 2010.


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1241-1244 ◽  
Author(s):  
Mitsuo Sakamoto ◽  
Moriya Ohkuma

Strains of the recently proposed species Bacteroides chinchillae share more than 99.4 % 16S rRNA gene sequence similarity with the type strain of Bacteroides sartorii although these two species do not appear to be similar from their published descriptions. The aim of this study was to perform phenotypic and genetic analyses of both species to clarify their taxonomic position. B. chinchillae JCM 16497T exhibited high hsp60 gene sequence similarity with B. sartorii JCM 17136T (100 %) as well as B. chinchillae JCM 16498 (100 %). The hsp60 gene sequence analysis and levels of DNA–DNA relatedness observed demonstrated B. sartorii JCM 17136T, B. chinchillae JCM 16497T, and B. chinchillae JCM 16498 are members of a single species. Based on these data, we propose Bacteroides chinchillae as a later heterotypic synonym of Bacteroides sartorii . An emended description of B. sartorii is provided.


2020 ◽  
Vol 70 (11) ◽  
pp. 5824-5831 ◽  
Author(s):  
Peter Kämpfer ◽  
S. P. Glaeser ◽  
John A. McInroy ◽  
Jia Xu ◽  
Hans-Jürgen Busse ◽  
...  

A Gram-staining-negative non endospore-forming strain, PXU-55T, was isolated from the rhizosphere of the switchgrass Panicum virgatum and studied in detail to determine its taxonomic position. The results of 16S rRNA gene sequence analysis indicated that the isolate represented a member of the genus Flavobacterium . The isolate shared highest 16S rRNA gene sequence similarities with the type strains of Flavobacterium chungangense (98.78 %) and Flavobacterium chilense (98.64 %). The average nucleotide identity (ANI) and in silico DNA–DNA hybridization (isDDH) values between the PXU-55T genome assembly and the ones of the most closely related type strains of species of the genus Flavobacterium were 87.3 and 31.9% ( Flavobacterium defluvii ), and 86.1 and 29.9% ( Flavobacterium johnsoniae ). Menaquinone MK-6 was the major respiratory quinone. As major polar lipids, phosphatidylethanolamine, an ornithine lipid and the unidentified polar lipids L2, L3 and L4 lacking a functional group were found. Moderate to minor amounts of another ornithine lipid, the unidentified lipid L1 and a glycolipid were present, as well. The major polyamine is sym-homospermidine. The fatty acid profiles contained major amounts of iso-C15:0, iso-C15:0 3-OH, iso-C17:0 3-OH, C15:0, summed feature 3 (C16:1ω7c and/or iso-C15:0 2-OH) and various hydroxylated fatty acids in smaller amounts, among them iso C16:0 3-OH, C16:0 3-OH and C15:0 3-OH, which supported the classification of the isolate as a member of the genus Flavobacterium . Physiological and biochemical characterisation and ANI calculations with the type strains of the most closely related species allowed a clear phenotypic and genotypic differentiation of the strain. For this reason, we propose that strain PXU-55T (=CIP 111646T=CCM 8914T) represents a novel species with the name Flavobacterium panici sp. nov.


2020 ◽  
Vol 70 (12) ◽  
pp. 6220-6225 ◽  
Author(s):  
Yanyan Li ◽  
Yu Wang ◽  
Yina Wang ◽  
Fang Lin ◽  
Hongmei Zhu ◽  
...  

A novel Gram-stain-negative, rod-shaped, aerobic, oxidase-positive and catalase-positive bacterium of the genus Pseudooceanicola , designated strain E2-1T, was isolated from surface water of Jiulong River Estuary, PR China. Cells of strain E2-1T grew in medium containing 0.5–12 % NaCl (w/v; optimum, 2–4 %), at 15–45 °C (optimum, 28–33 °C) and at pH 7.0–9.0 (optimum, pH 7.0–8.0). Comparative analyses of the 16S rRNA gene sequence revealed that strain E2-1T had the highest similarity to Pseudooceanicola nitratireducens JLT1210T (97.3 %) and Pseudooceanicola batsensis HTCC2597T (97.1 %), and had less than 97.0 % 16S rRNA gene sequence similarity to other type strains within the genus Pseudooceanicola . The DNA G+C content of strain E2-1T was 65.7 mol%. The average nucleotide identity and digital DNA–DNA hybridization relatedness values between E2-1T and related type strains were 75.0 and 20.1 % with P. nitratireducens JLT1210T and 75.6 and 20.4 % with P. batsensis HTCC2597T, respectively. The sole isoprenoid quinone was Q-10; the predominant polar lipids were diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, three unidentified phospholipids and six unidentified lipids; the major cellular fatty acids were C16 : 0 (17.5 %), C19 : 0 cyclo ω8c (22.7 %) and summed feature 8 (C18 : 1  ω7c/C18 : 1  ω6c; 10.1 %). According to the phylogenetic and genotypic results, strain E2-1T represents a novel species in the genus Pseudooceanicola , for which the name Pseudooceanicola aestuarii sp. nov. is proposed. The type strain is E2-1T (=MCCC 1K03742T=KCTC 72107T).


Author(s):  
Peter Kämpfer ◽  
Hans-Jürgen Busse ◽  
Dominique Clermont ◽  
Alexis Criscuolo ◽  
Stefanie P. Glaeser

A Gram-stain-negative, aerobic, non-endospore-forming organism isolated from horse blood was studied for its taxonomic allocation. On the basis of 16S rRNA gene sequence similarity comparisons, strain M6-77T grouped within the genus Devosia and was most closely related to Devosia elaeis (97.6 %) and Devosia indica (97.55 %). The 16S rRNA gene sequence similarity to type strains of other Devosia species was below 97.5 %. The average nucleotide identity and digital DNA–DNA hybridization values between the M6-77T genome assembly and those of the closest relative Devosia type strains were <85 and <25 %, respectively. Strain M6-77T grew optimally at 25–37 °C (range: 10–36 °C), at a pH range of pH 6.5–10.5 and in the presence of up to 3 % (w/v) NaCl. The fatty acid profile from whole-cell hydrolysates supported the allocation of the strain to the genus Devosia . Major fatty acids were C18 : 1  ω7c, 11-methyl C18 : 1  ω7c and C16 : 0. The quinone system consisted exclusively of ubiquinone Q-10. The polar lipid profile was composed of the major lipids diphosphatidylglycerol, phosphatidylglycerol and three unidentified glycolipids. In the polyamine pattern, putrescine was predominant and spermidine was detected in moderate amounts. The diamino acid of the peptidoglycan was meso-diaminopimelic acid. In addition, the results of physiological and biochemical tests also allowed phenotypic differentiation of strain M6-77T from the closely related species. Hence, M6-77T represents a new species of the genus Devosia , for which we propose the name Devosia equisanguinis sp. nov., with M6-77T (=CIP 111628T=LMG 30659T=CCM 8868T) as the type strain.


2014 ◽  
Vol 64 (Pt_3) ◽  
pp. 945-951 ◽  
Author(s):  
Yong-Taek Jung ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, rod- or coccoid-shaped bacterial strain, designated HD-22T, belonging to the class Alphaproteobacteria , was isolated from a tidal flat sediment of the Yellow Sea, Korea, and was subjected to a polyphasic taxonomic study. Strain HD-22T grew optimally at pH 7.0–8.0, at 25 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HD-22T fell within the clade comprising species of the genus Jannaschia , clustering with the type strains of Jannaschia helgolandensis , Jannaschia donghaensis and Jannaschia rubra , with which it exhibited highest 16S rRNA gene sequence similarity (97.6–98.2 %). Levels of 16S rRNA gene sequence similarity between strain HD-22T and the type strains of the other species of the genus Jannaschia were in the range 94.4–97.5 %. The DNA G+C content was 64.6 mol% and mean DNA–DNA relatedness values between strain HD-22T and the type strains of J. helgolandensis , J. donghaensis and J. rubra were 42.1, 40.1 and 27.0 %, respectively. Strain HD-22T contained Q-10 as the predominant ubiquinone and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) as the major fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol and phosphatidylethanolamine. Differential phenotypic properties, together with phylogenetic and genetic distinctiveness, demonstrated that strain HD-22T is distinguishable from recognized species of the genus Jannaschia . On the basis of the data presented, strain HD-22T is considered to represent a novel species of the genus Jannaschia , for which the name Jannaschia faecimaris sp. nov. is proposed. The type strain is HD-22T ( = KCTC 32179T = CCUG 63415T).


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).


2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 4118-4123 ◽  
Author(s):  
Sooyeon Park ◽  
Yong-Taek Jung ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, designated D1-W3T, was isolated from tidal flat sediment of the South Sea, South Korea, and subjected to a taxonomic study using a polyphasic approach. Strain D1-W3T grew optimally at pH 7.0–8.0, at 25 °C and in the presence of 2 % (w/v) NaCl. Neighbour-joining phylogenetic analyses based on 16S rRNA gene sequences revealed that strain D1-W3T fell within the clade comprising species of the genus Loktanella , clustering with the type strains of Loktanella tamlensis , Loktanella rosea and Loktanella maricola , with which it exhibited the highest 16S rRNA gene sequence similarity values (98.1–98.2 %). The 16S rRNA gene sequence similarity values between strain D1-W3T and the type strains of other species of the genus Loktanella were in the range 93.5–96.5 %. The DNA G+C content of strain D1-W3T was 58.1 mol% and the mean DNA–DNA hybridization values with L. tamlensis KCTC 12722T, L. rosea LMG 22534T and L. maricola DSW-18T were 13–25 %. Strain D1-W3T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the predominant fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and one unidentified aminolipid. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, showed that strain D1-W3T could be differentiated from other species of the genus Loktanella . On the basis of the data presented, strain D1-W3T represents a novel species of the genus Loktanella , for which the name Loktanella sediminilitoris sp. nov. is proposed. The type strain is D1-W3T ( = KCTC 32383T = CECT 8284T).


2012 ◽  
Vol 62 (Pt_10) ◽  
pp. 2383-2387 ◽  
Author(s):  
Huili Pang ◽  
Maki Kitahara ◽  
Zhongfang Tan ◽  
Yanping Wang ◽  
Guangyong Qin ◽  
...  

Characterization and identification of strain CW 1 ( = JCM 17161) isolated from corn silage were performed. Strain CW 1 was a Gram-positive, catalase-negative and homofermentative rod that produced the dl-form of lactic acid. This strain exhibited more than 99.6 % 16S rRNA gene sequence similarity and greater than 82 % DNA–DNA reassociation with type strains of Lactobacillus kimchii , L. bobalius and L. paralimentarius . To clarify the taxonomic positions of these type strains, phenotypic characterization, 16S rRNA gene sequencing, ribotyping and DNA–DNA relatedness were examined. The three type strains displayed different l-arabinose, lactose, melibiose, melezitose, raffinose and N-acetyl-β-glucosaminidase fermentation patterns. Phylogenetic analysis showed that L. paralimentarius is a closer neighbour of L. kimchii and L. bobalius , sharing 99.5–99.9 % 16S rRNA gene sequence similarity, which was confirmed by the high DNA–DNA relatedness (≥82 %) between L. paralimentarius JCM 10415T, L. bobalius JCM 16180T and L. kimchii JCM 10707T. Therefore, it is proposed that L. kimchii and L. bobalius should be reclassified as later synonyms of L. paralimentarius .


2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 960-965 ◽  
Author(s):  
Anil Sazak ◽  
Nevzat Sahin ◽  
Mustafa Camas

A novel actinobacterial strain, A4029T, isolated from arid soil of Abuja, Nigeria, and provisionally assigned to the genus Actinoplanes , was subjected to a polyphasic taxonomic study. 16S rRNA gene sequence similarity studies showed that strain A4029T belonged to the genus Actinoplanes , being most closely related to Actinoplanes brasiliensis DSM 43805T (98.9 %) and Actinoplanes deccanensis DSM 43806T (98.0 %); similarity to other type strains of the genus Actinoplanes ranged from 96.2 to 97.9 %. Chemotaxonomic data [major menaquinone MK-9(H4); major polar lipids phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol; characteristic sugars arabinose and xylose; major fatty acids iso-C15 : 0, anteiso-C15 : 0, iso-C16 : 0, C17 : 1ω9c and iso-C14 : 0] confirmed the affiliation of strain A4029T to the genus Actinoplanes . The results of DNA–DNA hybridizations and phylogenetic analysis, together with phenotypic and biochemical test data, allowed strain A4029T to be differentiated from strains of other Actinoplanes species. Therefore, strain A4029T represents a novel species, for which the name Actinoplanes abujensis sp. nov. is proposed, with A4029T ( = DSM 45518T = NRRL B-24835T = KCTC 19984T) as the type strain.


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