Description of Acidovorax wautersii sp. nov. to accommodate clinical isolates and an environmental isolate, most closely related to Acidovorax avenae

2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2203-2206 ◽  
Author(s):  
Mario Vaneechoutte ◽  
Michèle Janssens ◽  
Véronique Avesani ◽  
Michel Delmée ◽  
Pieter Deschaght
Keyword(s):  
Nitrate Reduction ◽  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Phenol Red ◽  
Content Type ◽  
Link Type ◽  
Type Strains

Three Gram-negative strains, NF 1078T, NF 1598 and NF 1715, were isolated from clinical (two) and environmental (one) samples, respectively. Sequence analysis of the 16S rRNA genes revealed similarity of 100 % among the three strains and next highest similarity to the type strain of Acidovorax avenae (98.16 %). The three strains were able to acidify lactose and rhamnose on low peptone phenol red agar and to alkalinize citrate on Simmons’ agar and were negative for nitrate reduction. The DNA G+C content of strain NF 1078T was 67.1 mol%. The level of DNA–DNA relatedness between this strain and the type strains of A. avenae (ATCC 19860T, LMG 2117T) was 29 %. Based on these phylogenetic, phenotypic and genotypic analyses, the three strains could be distinguished clearly from all other recognized Acidovorax species and should be classified as representatives of a novel species of the genus Acidovorax , for which the name Acidovorax wautersii sp. nov. is proposed. The type strain is NF 1078T ( = LMG 26971T = CCUG 62584T).

scholarly journals Mycoplasma anserisalpingitidis sp. nov., isolated from European domestic geese (Anser anser domesticus) with reproductive pathology

2020 ◽  
Vol 70 (4) ◽  
pp. 2369-2381 ◽  
Author(s):  
Dmitriy V. Volokhov ◽  
Dénes Grózner ◽  
Miklós Gyuranecz ◽  
Naola Ferguson-Noel ◽  
Yamei Gao ◽  
...  
Keyword(s):  
16S Rrna ◽  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
23S Rrna ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

In 1983, Mycoplasma sp. strain 1220 was isolated in Hungary from the phallus lymph of a gander with phallus inflammation. Between 1983 and 2017, Mycoplasma sp. 1220 was also identified and isolated from the respiratory tract, liver, ovary, testis, peritoneum and cloaca of diseased geese in several countries. Seventeen studied strains produced acid from glucose and fructose but did not hydrolyse arginine or urea, and all grew under aerobic, microaerophilic and anaerobic conditions at 35 to 37 ˚C in either SP4 or pleuropneumonia-like organism medium supplemented with glucose and serum. Colonies on agar showed a typical fried-egg appearance and transmission electron microscopy revealed a typical mycoplasma cellular morphology. Molecular characterization included analysis of the following genetic loci: 16S rRNA, 23S rRNA, 16S–23S rRNA ITS, rpoB, rpoC, rpoD, uvrA, parC, topA, dnaE, fusA and pyk. The genome was sequenced for type strain 1220T. The 16S rRNA gene sequences of studied strains of Mycoplasma sp. 1220 shared 99.02–99.19 % nucleotide similarity with M. anatis strains but demonstrated ≤95.00–96.70 % nucleotide similarity to the 16S rRNA genes of other species of the genus Mycoplasma . Phylogenetic, average nucleotide and amino acid identity analyses revealed that the novel species was most closely related to Mycoplasma anatis . Based on the genetic data, we propose a novel species of the genus Mycoplasma , for which the name Mycoplasma anserisalpingitidis sp. nov. is proposed with the type strain 1220T (=ATCC BAA-2147T=NCTC 13513T=DSM 23982T). The G+C content is 26.70 mol%, genome size is 959110 bp.

scholarly journals Rhizobium azibense sp. nov., a nitrogen fixing bacterium isolated from root-nodules of Phaseolus vulgaris

2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1501-1506 ◽  
Author(s):  
Bacem Mnasri ◽  
Tian Yan Liu ◽  
Sabrine Saidi ◽  
Wen Feng Chen ◽  
Wen Xin Chen ◽  
...  
Keyword(s):  
Type Species ◽  
Root Nodules ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
The Novel ◽  
Content Type ◽  
Link Type ◽  
Physiological Properties ◽  
Microbial Strains ◽  
Type Strains

Three microbial strains isolated from common beans, 23C2T (Tunisia), Gr42 (Spain) and IE4868 (Mexico), which have been identified previously as representing a genomic group closely related to Rhizobium gallicum , are further studied here. Their 16S rRNA genes showed 98.5–99 % similarity with Rhizobium loessense CCBAU 7190BT, R. gallicum R602spT, Rhizobium mongolense USDA 1844T and Rhizobium yanglingense CCBAU 71623T. Phylogenetic analysis based on recA, atpD, dnaK and thrC sequences showed that the novel strains were closely related and could be distinguished from the four type strains of the closely related species. Strains 23C2T, Gr42 and IE4868 could be also differentiated from their closest phylogenetic neighbours by their phenotypic and physiological properties and their fatty acid contents. All three strains harboured symbiotic genes specific to biovar gallicum. Levels of DNA–DNA relatedness between strain 23C2T and the type strains of R. loessense , R. mongolense , R. gallicum and R. yanglingense ranged from 58.1 to 61.5 %. The DNA G+C content of the genomic DNA of strain 23C2T was 59.52 %. On the basis of these data, strains 23C2T, Gr42 and IE4868 were considered to represent a novel species of the genus Rhizobium for which the name Rhizobium azibense is proposed. Strain 23C2T ( = CCBAU 101087T = HAMBI3541T) was designated as the type strain.

scholarly journals Rhizobium sophorae sp. nov. and Rhizobium sophoriradicis sp. nov., nitrogen-fixing rhizobial symbionts of the medicinal legume Sophora flavescens

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 497-503 ◽  
Author(s):  
Yin Shan Jiao ◽  
Hui Yan ◽  
Zhao Jun Ji ◽  
Yuan Hui Liu ◽  
Xin Hua Sui ◽  
...  
Keyword(s):  
Related Species ◽  
Type Strain ◽  
Type Species ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Sophora Flavescens ◽  
Content Type ◽  
Link Type ◽  
Group I ◽  
Group Ii

Five bacterial strains representing 45 isolates originated from root nodules of the medicinal legume Sophora flavescens were defined as two novel groups in the genus Rhizobium based on their phylogenetic relationships estimated from 16S rRNA genes and the housekeeping genes recA, glnII and atpD. These groups were distantly related to Rhizobium leguminosarum USDA 2370T (95.6 % similarity for group I) and Rhizobium phaseoli ATCC 14482T (93.4 % similarity for group II) in multilocus sequence analysis. In DNA–DNA hybridization experiments, the reference strains CCBAU 03386T (group I) and CCBAU 03470T (group II) showed levels of relatedness of 17.9–57.8 and 11.0–42.9 %, respectively, with the type strains of related species. Both strains CCBAU 03386T and CCBAU 03470T contained ubiquinone 10 (Q-10) as the major respiratory quinone and possessed 16 : 0, 18 : 0, 19 : 0 cyclo ω8c, summed feature 8 and summed feature 2 as major fatty acids, but did not contain 20 : 3 ω6,8,12c. Phenotypic features distinguishing both groups from all closely related species of the genus Rhizobium were found. Therefore, two novel species, Rhizobium sophorae sp. nov. for group I (type strain CCBAU 03386T = E5T = LMG 27901T = HAMBI 3615T) and Rhizobium sophoriradicis sp. nov. for group II (type strain CCBAU 03470T = C-5-1T = LMG 27898T = HAMBI 3510T), are proposed. Both groups were able to nodulate Phaseolus vulgaris and their hosts of origin (Sophora flavescens) effectively and their nodulation gene nodC was phylogenetically located in the symbiovar phaseoli.

scholarly journals Acinetobacter portensis sp. nov. and Acinetobacter guerrae sp. nov., isolated from raw meat

2020 ◽  
Vol 70 (8) ◽  
pp. 4544-4554 ◽  
Author(s):  
Ana Carvalheira ◽  
Lucia Gonzales-Siles ◽  
Francisco Salvà-Serra ◽  
Åsa Lindgren ◽  
Liselott Svensson-Stadler ◽  
...  
Keyword(s):  
Type Strain ◽  
Novel Species ◽  
Taxonomic Status ◽  
Cellular Fatty Acid ◽  
16S Rrna Genes ◽  
Whole Genome Sequence ◽  
Rrna Genes ◽  
Whole Genome ◽  
Content Type ◽  
Link Type

The taxonomic status of six strains of Acinetobacter obtained from meat samples, collected from supermarkets in Porto, Portugal, was investigated using polyphasic analysis. Partial rpoB sequence similarities lower than 95 % to other Acinetobacter species with validly published names led to the hypothesis that these strains represented novel species. This was confirmed based on comparative multilocus sequence analysis, which included the gyrB, recA and 16S rRNA genes, revealing that these strains represented two coherent lineages that were distinct from each other and from all known species. The names Acinetobacter portensis sp. nov. (comprising four strains) and Acinetobacter guerrae sp. nov. (comprising two strains) are proposed for these novel species. The species status of these two groups was confirmed by low (below 95 %) whole-genome sequence average nucleotide identity values and low (below 70 %) digital DNA–DNA hybridization similarities between the whole-genome sequences of the proposed type strains of each novel species and the representatives of the known Acinetobacter species. Phylogenomic treeing from core genome analysis supported these results. The coherence of each new species lineage was supported by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry differentiation of the species at the protein level, by cellular fatty acid profiles, and by unique and differential combinations of metabolic and physiological properties shared by each novel species. The type strain of A. portensis sp. nov. is AC 877T (=CCUG 68672T=CCM 8789T) and the type strain of A. guerrae sp. nov. is AC 1271T (=CCUG 68674T=CCM 8791T).

scholarly journals Oceanivirga miroungae sp. nov., isolated from oral cavity of northern elephant seal (Mirounga angustirostris)

2020 ◽  
Vol 70 (5) ◽  
pp. 3037-3048 ◽  
Author(s):  
Dmitriy V. Volokhov ◽  
Jochen Blom ◽  
Megan Amselle ◽  
Pierluigi Delmonte ◽  
Yamei Gao ◽  
...  
Keyword(s):  
16S Rrna ◽  
Oral Cavity ◽  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
Rrna Genes ◽  
Mirounga Angustirostris ◽  
Content Type ◽  
Link Type ◽  
The Family

Two independent strains of a Leptotrichia species (ES3154-GLUT and ES2714_GLU) were isolated from the oral cavity of northern elephant seals (Mirounga angustirostris) that were admitted to The Marine Mammal Centre facilities in California, USA. The strains were isolated from oral swabs by cultivation in PPLO broth supplemented with serum, penicillin and colistin in anaerobic conditions. The strains were Gram-negative, pleomorphic, indole-, oxidase- and catalase-negative, non-spore-forming, non-motile rods/coccobacilli in short chains. The 16S rRNA gene sequence of these strains shared 94.42 % nucleotide similarity with Oceanivirga salmonicida AVG 2115T but demonstrated ≤86.00–92.50 % nucleotide similarity to the 16S rRNA genes of other species of the family Leptotrichiaceae . The genome was sequenced for strain ES3154-GLUT. Average nucleotide identity values between strain ES3154-GLUT and 15 type strain genomes from the family Leptotrichiaceae ranged from 66.74 % vs. Sebaldella termitidis to 73.35 % vs. O. salmonicida . The whole genome phylogeny revealed that the novel species was most closely related to O. salmonicida AVG 2115T. This relationship was also confirmed by nucleotide similarity and multilocus phylogenetic analyses employing various housekeeping genes (partial 23S rRNA, rpoB, rpoC, rpoD, polC, adh, gyrA and gyrB genes). Chemotaxonomic and phenotypical features of strain ES3154-GLUT were in congruence with closely related members of the family Leptotrichiaceae , represented by similar enzyme profiles and fatty acid patterns. MALDI-TOF MS analysis was capable to clearly discriminate strain ES3154-GLUT from all currently described taxa of the family Leptotrichiaceae . Based on these data, we propose a novel species of the genus Oceanivirga , for which the name Oceanivirga miroungae sp. nov. is proposed with the type strain ES3154-GLUT (=DSM 109740T=CCUG 73653T=ATCC TSD-189T=NCTC 14411T) and one representative strain ES2714_GLU. The G+C content is 26.82 %, genome size is 1 356 983 bp.

scholarly journals Reappraisal of the taxonomy of Streptococcus suis serotypes 20, 22 and 26: Streptococcus parasuis sp. nov.

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 438-443 ◽  
Author(s):  
R. Nomoto ◽  
F. Maruyama ◽  
S. Ishida ◽  
M. Tohya ◽  
T. Sekizaki ◽  
...  
Keyword(s):  
16S Rrna ◽  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Streptococcus Suis ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Content Type ◽  
Link Type ◽  
Reference Strains

In order to clarify the taxonomic position of serotypes 20, 22 and 26 of Streptococcus suis , biochemical and molecular genetic studies were performed on isolates (SUT-7, SUT-286T, SUT-319, SUT-328 and SUT-380) reacted with specific antisera of serotypes 20, 22 or 26 from the saliva of healthy pigs as well as reference strains of serotypes 20, 22 and 26. Comparative recN gene sequencing showed high genetic relatedness among our isolates, but marked differences from the type strain S. suis NCTC 10234T, i.e. 74.8–75.7 % sequence similarity. The genomic relatedness between the isolates and other strains of species of the genus Streptococcus , including S. suis, was calculated using the average nucleotide identity values of whole genome sequences, which indicated that serotypes 20, 22 and 26 should be removed taxonomically from S. suis and treated as a novel genomic species. Comparative sequence analysis revealed 99.0–100 % sequence similarities for the 16S rRNA genes between the reference strains of serotypes 20, 22 and 26, and our isolates. Isolate STU-286T had relatively high 16S rRNA gene sequence similarity with S. suis NCTC 10234T (98.8 %). SUT-286T could be distinguished from S. suis and other closely related species of the genus Streptococcus using biochemical tests. Due to its phylogenetic and phenotypic similarities to S. suis we propose naming the novel species Streptococcus parasuis sp. nov., with SUT-286T ( = JCM 30273T = DSM 29126T) as the type strain.

scholarly journals Genome-based classification of three novel actinobacteria from the Karakum Desert: Jiangella asiatica sp. nov., Jiangella aurantiaca sp. nov. and Jiangella ureilytica sp. nov

2020 ◽  
Vol 70 (3) ◽  
pp. 1993-2002 ◽  
Author(s):  
Hayrettin Saygin ◽  
Hilal Ay ◽  
Kiymet Guven ◽  
Nevzat Sahin
Keyword(s):  
Type Species ◽  
Novel Species ◽  
Morphological Characteristics ◽  
Distinct Species ◽  
Diaminopimelic Acid ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Sequence Comparisons ◽  
Content Type ◽  
Link Type

Three isolates, 5K138T, 8K307T and KC603T, with typical morphological characteristics of members of the genus Jiangella were obtained during a study searching for novel actinobacteria with biosynthetic potential from the Karakum Desert. A polyphasic approach was adopted to determine taxonomic affiliations of the strains. The strains showed chemotaxonomic properties consistent with their classification as representing members of the genus Jiangella such as ll-diaminopimelic acid in the cell wall peptidoglycan, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol as major polar lipids as well as MK-9(H4) as a major menaquinone. Pairwise sequence comparisons of the 16S rRNA genes showed that the strains were closely related to Jiangella alba DSM 45237T, Jiangella rhizosphaerae NEAU-YY265T and Jiangella mangrovi 3SM4-07T with higher than 99 % sequence identities. However, a combination of phenotypic and phylogenetic approaches as well as genome-based comparative analyses confirmed the taxonomic positions of these strains as representing distinct species within the genus Jiangella . Therefore, strains 5K138T, 8K307T and KC603T should each be classified as representing a novel species within the genus Jiangella , for which the names Jiangella asiatica sp. nov., Jiangella aurantiaca sp. nov. and Jiangella ureilytica sp. nov. are proposed, respectively. The type strains of the proposed novel species are as follows: Jiangella asiatica 5K138T (=JCM 33518T=CGMCC 4.7672T), Jiangella aurantiaca 8K307T (=JCM 33519T=CGMCC 4.7621T) and Jiangella ureilytica KC603T (=JCM 33520T=CGMCC 4.7618T).

Bacteroides luhongzhouii sp. nov. and Bacteroides zhangwenhongii sp. nov., isolated from human faeces

2021 ◽  
Vol 71 (4) ◽  
Author(s):  
Yajun Ge ◽  
Gui Zhang ◽  
Jing Yang ◽  
Xin-He Lai ◽  
Dong Jin ◽  
...  
Keyword(s):  
Type Species ◽  
Cellular Fatty Acid ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Strictly Anaerobic ◽  
Sequence Comparisons ◽  
Content Type ◽  
Link Type ◽  
Healthy Humans ◽  
Type Strains

Four unknown strains, characterized as Gram-stain-negative, strictly anaerobic, non-motile and rod-shaped, were isolated from fresh faeces of healthy humans in PR China. Pairwise sequence comparisons of the 16S rRNA genes showed that these isolates were separated into two clusters. Cluster I (strains HF-5141T and HF-106) was most closely related to Bacteroides xylanisolvens XB1AT (98.0–98.3 % similarity) and Bacteroides ovatus ATCC 8483T (97.3–97.5 %), whereas cluster II (strains HF-5287T and HF-5300) exhibited a similarity range of 96.8–97.0 % to Bacteroides finegoldii JCM 13345T, 96.7–96.9 % to Bacteroides faecis MAJ27T and 96.4–96.5 % to Bacteroides xylanisolvens XB1AT. The DNA G+C contents of type strains HF-5141T and HF-5287T were 41.5 and 42.6 mol%, respectively. These strains had anteiso-C15 : 0 as the major cellular fatty acid, MK-9 and MK-11 as the predominant respiratory quinones, and phosphatidylethanolamine, aminophospholipids and phospholipids as major polar lipids, which is typical for members of the genus Bacteroides . However, the average nucleotide identity and digital DNA–DNA hybridization values, accompanied by different phenotypic and biochemical characteristics, distinguished them from their corresponding closest relatives as well as from other recognized members of the genus Bacteroides . Therefore, strains HF-5141T and HF-5287T represent two novel species in the genus Bacteroides , for which the names Bacteroides luhongzhouii sp. nov. and Bacteroides zhangwenhongii sp. nov. are proposed, with HF-5141T (=CGMCC 1.16787T=GDMCC 1.1591T=JCM 33480T) and HF-5287T (=CGMCC 1.16724T=GDMCC 1.1590T=JCM 33481T) as type strains.

Phycicoccus flavus sp. nov., a novel endophytic actinobacterium isolated from branch of Kandelia candel

2021 ◽  
Vol 71 (4) ◽  
Author(s):  
Ming-Sheng Chen ◽  
Bao-Quan Pang ◽  
Shao-Wei Liu ◽  
Fei-Na Li ◽  
Xiao-Rui Yan ◽  
...  
Keyword(s):  
16S Rrna ◽  
Type Strain ◽  
Type Species ◽  
Diaminopimelic Acid ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Kandelia Candel ◽  
Content Type ◽  
Link Type ◽  
Endophytic Actinobacterium

A Gram-stain-positive, aerobic, non-motile, non-endospore-forming and rod-shaped actinobacterium, designated strain CMS6Z-2T, was isolated from a surface-sterilized branch of Kandelia candel collected from the Maowei Sea, Guangxi Zhuang Autonomous Region, PR China. Strain CMS6Z-2T grew at 10–37 °C (optimum, 37 °C), pH 6.0–9.0 (optimum, pH 7.0–8.0) and in the presence of 0–10.0 % (w/v) NaCl (optimum, 0–1.0 %). Strain CMS6Z-2T possessed meso-diaminopimelic acid as the diamino acid of the peptidoglycan and MK-8 (H4) as the predominant menaquinone. The major fatty acids were iso-C15 : 0, C16 : 0 and C18 : 1  ω9c. The polar lipids comprised diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and two unknown phospholipids. The G+C content of the genomic DNA was 74.1 mol%. Comparative analysis of 16S rRNA genes showed that strain CMS6Z-2T should be assigned to the genus Phycicoccus and its closest relative was Phycicoccus endophyticus IP6SC6T with 98.3 % similarity. Phylogenetic analyses based on 16S rRNA gene sequence and phylogenomic analysis based on core proteomes alignment revealed that strain CMS6Z-2T belonged to the genus Phycicoccus and formed a robust cluster with Phycicoccus endophyticus IP6SC6T within the genus Phycicoccus . The average nucleotide identity value and estimated digital DNA–DNA hybridization value between strain CMS6Z-2T and the type strain of Phycicoccus endophyticus were 81.5 and 23.9 %, respectively. On the basis of phylogenetic, phenotypic and chemotaxonomic characteristics, strain CMS6Z-2T represents a novel species of the genus Phycicoccus , for which the name Phycicoccus flavus sp. nov. is proposed. The type strain is CMS6Z-2T (=KCTC 49240T=CGMCC4.7549T).

Hymenobacter koreensis sp. nov. and Hymenobacter saemangeumensis sp. nov., isolated from estuarine water

2013 ◽  
Vol 63 (Pt_12) ◽  
pp. 4568-4573 ◽  
Author(s):  
Ji Young Kang ◽  
Jeesun Chun ◽  
Ahyoung Choi ◽  
Sung Hyun Moon ◽  
Jang-Cheon Cho ◽  
...  
Keyword(s):  
Type Strain ◽  
Type Species ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Major Polar Lipid ◽  
Bacterial Strains ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Physiological Properties

Two Gram-reaction-negative, rod-shaped, non-motile and red–pink-pigmented bacterial strains, designated GYR3077T and GSR0100T, were isolated from a water sample of the Mangyung estuary enclosed by the Saemangeum Embankment in JEOLlabuk-do, South Korea, and were characterized using a polyphasic approach. 16S rRNA genes of strains GYR3077T and GSR0100T exhibited sequence similarities of 95.9 % to Hymenobacter deserti ZLB-3T and 96.6 % to Hymenobacter soli PB17T, respectively, and indicated that these isolates belonged to the phylum Bacteroidetes . The major cellular fatty acids present in the two isolates were iso-C15 : 0, C16 : 1ω5c, summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B) and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The major respiratory quinone and polyamine patterns were menaquinone-7 and sym-homospermidine, characteristic of the genus Hymenobacter . Flexirubin-type pigments were absent in both strains. The DNA G+C contents of strains GYR3077T and GSR0100T were 60.2 mol% and 61.9 mol%, respectively. The major polar lipid of strains GYR3077T and GSR0100T was phosphatidylethanolamine. Based on the morphological and physiological properties, strains GYR3077T and GSR0100T were considered to represent two novel species of the genus Hymenobacter , for which the names Hymenobacter koreensis sp. nov. (type strain GYR3077T = KACC 16451T = JCM 17924T) and Hymenobacter saemangeumensis sp. nov. (type strain GSR0100T = KACC 16452T = JCM 17923T) are proposed.

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