Methylocystis silviterrae sp.nov., a high-affinity methanotrophic bacterium isolated from the boreal forest soil

2021 ◽  
Vol 71 (12) ◽  
Author(s):  
Ekaterina N. Tikhonova ◽  
Denis S. Grouzdev ◽  
Alexander N. Avtukh ◽  
Irina K. Kravchenko
Keyword(s):  
Forest Soil ◽  
Type Species ◽  
Novel Species ◽  
Mixed Forest ◽  
Rrna Gene ◽  
Atmospheric Concentration ◽  
Intracytoplasmic Membrane ◽  
Content Type ◽  
High Affinity ◽  
Link Type

A novel species is proposed for a high-affinity methanotrophic representative of the genus Methylocystis . Strain FST was isolated from a weakly acidic (pH 5.3) mixed forest soil of the southern Moscow area. Cells of FST are aerobic, Gram-negative, non-motile, curved coccoids or short rods that contain an intracytoplasmic membrane system typical of type-II methanotrophs. Only methane and methanol are used as carbon sources. FST grew at a temperature range of 4–37 °C (optimum 25–30 °C) and a pH range of 4.5 to 7.5 (optimum pH 6.0–6.5). The major fatty acids were C18  :  1ω8c, C18  :  1ω7c and C18  :  0; the major quinone as Q-8. FST displays 16S rRNA gene sequences similarity to other taxonomically recognized members of the genus Methylocystis, with Methylocystis hirsuta CSC1T (99.6 % similarity) and Methylocystis rosea SV97T (99.3 % similarity) as its closest relatives. The genome comprises 3.85 Mbp and has a DNA G+C content of 62.6 mol%. Genomic analyses and DNA–DNA relatedness with genome-sequenced members of the genus Methylocystis demonstrated that FST could be separated from its closest relatives. FST possesses two particulate methane monooxygenases (pMMO): low-affinity pMMO1 and high-affinity pMMO2. In laboratory experiments, it was demonstrated that FST might oxidize methane at atmospheric concentration. The genome contained various genes for nitrogen fixation, polyhydroxybutyrate synthesis, antibiotic resistance and detoxification of arsenic, cyanide and mercury. On the basis of genotypic, phenotypic and chemotaxonomic characteristics, it is proposed that the isolate represents a novel species, Methylocystis silviterrae sp. nov. The type strain is FST (=KCTC 82935T=VKM B-3535T).

Myroides xuanwuensis sp. nov., a mineral-weathering bacterium isolated from forest soil

2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 621-624 ◽  
Author(s):  
Zhen-Dong Zhang ◽  
Lin-Yan He ◽  
Zhi Huang ◽  
Xia-Fang Sheng
Keyword(s):  
Forest Soil ◽  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Sequence Similarity ◽  
Mineral Weathering ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Myroides Odoratimimus

A Gram-reaction-negative, aerobic, non-motile, yellow-pigmented, rod-shaped bacterium, designated strain TH-19T, was isolated from a forest soil sample in Jiangsu province, China. On the basis of 16S rRNA gene sequence similarity, strain TH-19T was shown to belong to the genus Myroides , a member of the phylum Bacteroidetes , and was related to Myroides odoratimimus LMG 4029T (98.7 % similarity), Myroides profundi D25T (98.2 %) and Myroides marinus JS-08T (97.5 %). Strain TH-19T contained menaquinone-6 (MK-6) as the predominant menaquinone, and the dominant fatty acids were iso-C15 : 0 and iso-C17 : 0 3-OH. The DNA G+C content of strain TH-19T was 37.2 mol%. The DNA–DNA relatedness values of strain TH-19T with Myroides odoratimimus JCM 7460T, Myroides profundi D25T and Myroides marinus JS-08T were below 70 %. Based on phenotypic, genotypic and phylogenetic evidence, it is suggested that strain TH-19T represents a novel species of the genus Myroides , for which the name Myroides xuanwuensis sp. nov. is proposed. The type strain is TH-19T ( = CCTCC AB 2013145T = JCM 19200T).

Pseudomonas bijieensis sp. nov., isolated from cornfield soil

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Jingling Liang ◽  
Sai Wang ◽  
Ayizekeranmu Yiming ◽  
Luoyi Fu ◽  
Iftikhar Ahmad ◽  
...  
Keyword(s):  
16S Rrna ◽  
Type Species ◽  
Novel Species ◽  
Guizhou Province ◽  
Rrna Gene ◽  
Gene Sequences ◽  
Content Type ◽  
Link Type ◽  
Pr China ◽  
Genome Comparisons

Strain L22-9T, a Gram-stain-negative and rod-shaped bacterium, motile by one polar flagellum, was isolated from cornfield soil in Bijie, Guizhou Province, PR China. Based on 16S rRNA gene sequences, it was identified as a Pseudomonas species. Multilocus sequence analysis of concatenated 16S rRNA, gyrB, rpoB and rpoD gene sequences showed that strain L22-9T formed a clearly separated branch, located in a cluster together with Pseudomonas brassicacearum LMG 21623T, Pseudomonas kilonensis DSM 13647T and Pseudomonas thivervalensis DSM 13194T. Whole-genome comparisons based on average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) confirmed that strain L22-9T should be classified as a novel species. It was most closely related to P. kilonensis DSM 13647T with ANI and dDDH values of 91.87 and 46.3 %, respectively. Phenotypic features that can distinguish strain L22-9T from P. kilonensis DSM 13647T are the assimilation ability of N-acetyl-d-glucosamine, poor activity of arginine dihydrolase and failure to ferment ribose and d-fucose. The predominant cellular fatty acids of strain L22-9T are C16 : 0, summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c) and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). The respiratory quinones consist of Q-9 and Q-8. The polar lipids are diphosphatidylglycerol, phosphatidylethanolamine, two unidentified phosphoglycolipids, two unidentified aminophospholipids and an unidentified glycolipid. Based on the evidence, we conclude that strain L22-9T represents a novel species, for which the name Pseudomonas bijieensis sp. nov. is proposed. The type strain is L22-9T (=CGMCC 1.18528T=LMG 31948T), with a DNA G+C content of 60.85 mol%.

Eikenella glucosivorans sp. nov., isolated from a human throat swab, and emendation of the genus Eikenella to include saccharolytic species

2021 ◽  
Vol 71 (9) ◽  
Author(s):  
Silvio Hering ◽  
Moritz K. Jansson ◽  
Michael E. J. Buhl
Keyword(s):  
Type Species ◽  
Throat Swab ◽  
Novel Species ◽  
Phylogenetic Analyses ◽  
Routine Care ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Bacterium Strain

A novel species within the genus Eikenella is described, based on the phenotypical, biochemical and genetic characterization of a strain of a facultatively anaerobic, Gram-negative rod-shaped bacterium. Strain S3360T was isolated from the throat swab of a patient sampled during routine care at a hospital. Phylogenetic analyses (full-length 16S rRNA gene and whole-genome sequences) placed the strain in the genus Eikenella , separate from all recognized species but with the closest relationship to Eikenella longinqua (NML 02-A-017T). Eikenella is one of the genera in the HACEK group known to be responsible for rare cases of endocarditis in humans. Until the recent descriptions of Eikenella exigua , Eikenella halliae and Eikenella longinqua , Eikenella corrodens had been the only validly published species in this genus since its description as Bacteroides corrodens in 1958. Unlike these species, strain S3360T is able to metabolize carbohydrates (glucose). The average nucleotide identities of strain S3360T with E. longinqua (NML 02-A-017T) and E. corrodens (NCTC 10596T), the type species of the genus, were 90.5 and 84.7 %, respectively, and the corresponding genome-to-genome distance values were 41.3 and 29.0 %, respectively. The DNA G+C content of strain S3360T was 58.4 mol%. Based on the phenotypical, biochemical and genetic findings, strain S3360T is considered to represent a novel species within the genus Eikenella , for which the name Eikenella glucosivorans sp. nov. is proposed. The type strain is S3360T (DSM 110714T=CCOS 1935T=CCUG 74293T). In addition, an emendation of the genus Eikenella is proposed to include species which are saccharolytic.

Flavobacterium solisilvae sp. nov. and Flavobacterium silvaticum sp. nov., isolated from forest soil

2021 ◽  
Vol 71 (7) ◽  
Author(s):  
Hye Su Jung ◽  
Byung Hee Chun ◽  
Hyung Min Kim ◽  
Che Ok Jeon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Forest Soil ◽  
Type Species ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
Strictly Aerobic ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

Two Gram-stain-negative, yellow-pigmented and strictly aerobic bacteria, designated strains SE-s27T and SE-s28T, were isolated from forest soil. Both strains were non-motile rods that were catalase-positive and oxidase-negative and grew optimally at 25–30 °C, pH 8.0 and with 0 % (w/v) NaCl. Strain SE-s28T produced flexirubin-type pigments, but strain SE-s27T did not produce them. Both strains contained menaquinone-6 as the sole respiratory quinone and phosphatidylethanolamine as a major polar lipid. As the major cellular fatty acids (>10 %), SE-s27T contained iso-C15 : 1 and iso-C15 : 1G, whereas SE-s28T contained iso-C15 : 0 and summed feature 3 comprising C16 : 1ω7c and/or C16 : 1ω6c and/or iso-C15 : 0 2-OH. The DNA G+C contents of strains SE-s27T and SE-s28T were 33.1 and 44.3 mol%, respectively. The results of phylogenetic analysis based on 16S rRNA gene sequences revealed that SE-s27T and SE-s28T formed respective distinct phylogenetic lineages within the genus Flavobacterium . Strains SE-s27T and SE-s28T were most closely related to Flavobacterium macrobrachii an-8T and Flavobacterium piscinae ICH-30T with 98.0 and 94.5 % 16S rRNA gene sequence similarities, respectively. In conclusion, strains SE-s27T and SE-s28T represent novel species of the genus Flavobacterium , for which the names Flavobacterium solisilvae sp. nov. and Flavobacterium silvaticum sp. nov. are proposed. The type strains of F. solisilvae and F. silvaticum are SE-s27T (=KACC 18802T=JCM 31544T) and SE-s28T (=KACC 18803T=JCM 31545T), respectively.

Limosilactobacillus urinaemulieris sp. nov. and Limosilactobacillus portuensis sp. nov. isolated from urine of healthy women

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Magdalena Ksiezarek ◽  
Teresa Gonçalves Ribeiro ◽  
Joana Rocha ◽  
Filipa Grosso ◽  
Svetlana Ugarcina Perovic ◽  
...  
Keyword(s):  
Type Species ◽  
Novel Species ◽  
Rrna Gene ◽  
Gram Stain ◽  
Gene Sequences ◽  
16S Rrna Gene Sequences ◽  
Content Type ◽  
Link Type ◽  
Healthy Women ◽  
Genome Distance

Two Gram-stain-positive strains, c9Ua_26_MT and c11Ua_112_MT, were isolated from voided urine samples from two healthy women. Comparative 16S rRNA gene sequences demonstrated that these novel strains were members of the genus Limosilactobacillus . Phylogenetic analysis based on pheS gene sequences and core genomes showed that each strain formed a separated branch and are closest to Limosilactobacillus vaginalis DSM 5837T. The average nucleotide identity (ANI) and Genome-to-Genome Distance Calculator (GGDC) values between c9Ua_26_MT and the closest relative DSM 5837T were 90.7 and 42.9 %, respectively. The ANI and GGDC values between c11Ua_112_MT and the closest relative DSM 5837T were 91.2 and 45.0 %, and those among the strains were 92.9% and 51,0 %, respectively. The major fatty acids were C12 : 0 (40.2 %), C16 : 0 (26.7 %) and C18 : 1 ω9c (17.7 %) for strain c9Ua_26_MT, and C18 : 1 ω9c (38.0 %), C16 : 0 (33.3 %) and C12 : 0 (17.6 %) for strain c11Ua_112_MT. The genomic DNA G+C content of strains c9Ua_26_MT and c11Ua_112_MT was 39.9 and 39.7 mol%, respectively. On the basis of the data presented here, strains c9Ua_26_MT and c11Ua_112_MT represent two novel species of the genus Limosilactobacillus , for which the names Limosilactobacillus urinaemulieris sp. nov. (c9Ua_26_MT=CECT 30144T=LMG 31899T) and Limosilactobacillus portuensis sp. nov. (c11Ua_112_MT=CECT 30145T=LMG 31898T) are proposed.

Carnobacterium iners sp. nov., a psychrophilic, lactic acid-producing bacterium from the littoral zone of an Antarctic pond

2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1370-1375 ◽  
Author(s):  
Isabel Snauwaert ◽  
Bart Hoste ◽  
Katrien De Bruyne ◽  
Karolien Peeters ◽  
Luc De Vuyst ◽  
...  
Keyword(s):  
Lactic Acid ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Littoral Zone ◽  
Type Species ◽  
Novel Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

Two lactic acid-producing, Gram-stain-positive rods were isolated from a microbial mat actively growing in the littoral zone of an Antarctic lake (Forlidas Pond) in the Pensacola mountains and studied using a polyphasic taxonomic approach. The isolates were examined by phylogenetic analysis of the 16S rRNA gene, multilocus sequence analysis of pheS, rpoA and atpA, and biochemical and genotypic characteristics. One strain, designated LMG 26641, belonged to Carnobacterium alterfunditum and the other strain, designated LMG 26642T, could be assigned to a novel species, with Carnobacterium funditum DSM 5970T as its closest phylogenetic neighbour (99.2 % 16S rRNA gene sequence similarity). Carnobacterium iners sp. nov. could be distinguished biochemically from other members of the genus Carnobacterium by the lack of acid production from carbohydrates. DNA–DNA relatedness confirmed that strain LMG 26642T represented a novel species, for which we propose the name Carnobacterium iners sp. nov. (type strain is LMG 26642T  = CCUG 62000T).

scholarly journals Dyella monticola sp. nov. and Dyella psychrodurans sp. nov., isolated from monsoon evergreen broad-leaved forest soil of Dinghu Mountain, China

2019 ◽  
Vol 69 (4) ◽  
pp. 1016-1023 ◽  
Author(s):  
Xiang-yue Zhou ◽  
Zeng-hong Gao ◽  
Mei-hong Chen ◽  
Mei-qi Jian ◽  
Li-hong Qiu
Keyword(s):  
Dna Hybridization ◽  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Broad Leaved Forest ◽  
Gene Sequence Analysis ◽  
Leaved Forest

Cells of bacterial strains 4 G-K06T and 4MSK11T, isolated from soil samples collected from monsoon evergreen broad-leaved forest of the Dinghushan Mountain (112° 31′ E 23° 10′ N), Guangdong Province, PR China, were Gram-stain-negative, aerobic, non-spore-forming, non-motile and rod-shaped. Strain 4 G-K06T grew at 10–37 °C, pH 3.5–7.5 and 0–3.5 % (w/v) NaCl; while 4MSK11T grew at 4–42 °C, pH 3.5–7.5 and 0–2.5 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed strain 4 G-K06T formed a clade with Dyella flagellata 4 M-K16T, Dyella acidisoli 4M-Z03T, Dyella humi DHG40T and Dyella nitratireducens DHG59T, while strain 4MSK11T formed a clade with Dyella caseinilytica DHOB09T and Dyella mobilis DHON07T, both within the genus Dyella . The result of the partial atpD, gyrB and lepA gene sequence analysis supported the conclusion based on 16S rRNA gene sequence analysis, which showed that these two strains represent two novel species of Dyella . The average nucleotide identity and digital DNA–DNA hybridization value for the whole genomes were 75.0–79.0 and 20.3–22.6 % between strains 4 G-K06T, 4MSK11T and those described Dyella species with genome sequences; while the DNA–DNA hybridization rates between strains 4 G-K06T, 4MSK11T and closely related Dyella species (without genome sequence) were 29.5–41.8 %. The major cellular fatty acids of these two strains were iso-C15 : 0, iso-C16 : 0 and iso-C17 : 1 ω9c, while the major polar lipids consisted of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and several unidentified phospholipids and aminophospholipids. The only ubiquinone of these two strains was ubiquinone-8. The DNA G+C contents of 4 G-K06T and 4MSK11T were 60.4 and 61.3 mol%, respectively. On the basis of the evidence presented here, strains 4 G-K06T and 4MSK11T represent two novel species of the genus Dyella , for which the names Dyella monticola sp. nov. (type strain 4 G-K06T=LMG 30268T=GDMCC 1.1188T) and Dyella psychrodurans sp. nov. (type strain 4MSK11T=KCTC 62280T=GDMCC 1.1185T) are proposed.

scholarly journals Amedibacterium intestinale gen. nov., sp. nov., isolated from human faeces, and reclassification of Eubacterium dolichum Moore et al. 1976 (Approved Lists 1980) as Amedibacillus dolichus gen. nov., comb. nov

2020 ◽  
Vol 70 (6) ◽  
pp. 3656-3664 ◽  
Author(s):  
Nao Ikeyama ◽  
Atsushi Toyoda ◽  
Sho Morohoshi ◽  
Tadao Kunihiro ◽  
Takumi Murakami ◽  
...  
Keyword(s):  
In Silico ◽  
Type Species ◽  
Novel Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Monophyletic Cluster ◽  
Link Type ◽  
Gene Sequence Analysis ◽  
Faecal Samples

Four strains (9CBEGH2T, 9BBH35, 6BBH38 and 6EGH11) of Gram-stain-positive, obligately anaerobic, rod-shaped bacteria were isolated from faecal samples from healthy Japanese humans. The results of 16S rRNA gene sequence analysis indicated that the four strains represented members of the family Erysipelotrichaceae and formed a monophyletic cluster with ‘ Absiella argi ’ strain N6H1-5 (99.4% sequence similarity) and Eubacterium sp. Marseille-P5640 (99.3 %). Eubacterium dolichum JCM 10413T (94.2 %) and Eubacterium tortuosum ATCC 25548T (93.7 %) were located near this monophyletic cluster. The isolates, 9CBEGH2T, ‘ A. argi ’ JCM 30884 and Eubacterium sp. Marseille-P5640 shared 98.7–99.1% average nucleotide identity (ANI) with each other. Moreover, the in silico DNA–DNA hybridization (DDH) values among three strains were 88.4–90.6%, indicating that these strains represent the same species. Strain 9CBEGH2T showed 21.5–24.1 % in silico DDH values with other related taxa. In addition, the ANI values between strain 9CBEGH2T and other related taxa ranged from 71.2 % to 73.5 %, indicating that this strain should be considered as representing a novel species on the basis of whole-genome relatedness. Therefore, we formally propose a novel name for ‘ A. argi ’ strains identified because the name ‘ A. argi ’ has been effectively, but not validly, published since 2017. On the basis of the collected data, strain 9CBEGH2T represents a novel species of a novel genus, for which the name Amedibacterium intestinale gen. nov., sp. nov. is proposed. The type strain of A. intestinale is 9CBEGH2T (=JCM 33778T=DSM 110575T).

scholarly journals Arthrobacter yangruifuii sp. nov. and Arthrobacter zhaoguopingii sp. nov., two new members of the genus Arthrobacter

2020 ◽  
Vol 70 (10) ◽  
pp. 5287-5295 ◽  
Author(s):  
Yajun Ge ◽  
Yuanmeihui Tao ◽  
Jing Yang ◽  
Xin-He Lai ◽  
Dong Jin ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
Sequence Similarity ◽  
Tibet Plateau ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

Four unknown strains belonging to the genus Arthrobacter were isolated from plateau wildlife on the Qinghai–Tibet Plateau of PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that the four isolates were separated into two clusters. Cluster I (strains 785T and 208) had the greatest 16S rRNA gene sequence similarity to Arthrobacter citreus (98.6 and 98.7 %, respectively), Arthrobacter luteolus (98.0 and 98.1%, respectively), Arthrobacter gandavensis (97.9 and 98.0 %, respectively) and Arthrobacter koreensis (97.6 and 97.7 %, respectively). Likewise, cluster II (strains J391T and J915) had the highest sequence similarity to Arthrobacter ruber (98.6 and 98.3 %, respectively) and Arthrobacter agilis (98.1 and 97.9  %, respectively). Average nucleotide identity and the digital DNA–DNA hybridization values illustrated that the two type strains, 785T and J391T, represented two separate novel species that are distinct from all currently recognized species in the genus Arthrobacter . These strains had DNA G+C contents of 66.0–66.1 mol% (cluster I) and 68.0 mol% (cluster II). The chemotaxonomic properties of strains 785T and J391T were in line with those of the genus Arthrobacter : anteiso-C15:0 (79.3 and 40.8 %, respectively) as the major cellular fatty acid, MK-8(H2) (65.8 %) or MK-9(H2) (75.6 %) as the predominant respiratory quinone, a polar lipid profile comprising diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, glycolipids and phospholipid, and A3α or A4α as the cell wall peptidoglycan type. On the basis of our results, two novel species in the genus Arthrobacter are proposed, namely Arthrobacter yangruifuii sp. nov. (type strain, 785T=CGMCC 1.16725T=GDMCC 1.1592T=JCM 33491T) and Arthrobacter zhaoguopingii sp. nov. (type strain, J391T=CGMCC 1.17382T=GDMCC 1.1667T=JCM 33841T).

scholarly journals Streptomyces barkulensis sp. nov., isolated from an estuarine lake

2014 ◽  
Vol 64 (Pt_4) ◽  
pp. 1365-1372 ◽  
Author(s):  
Lopamudra Ray ◽  
Samir Ranjan Mishra ◽  
Ananta Narayan Panda ◽  
Gurdeep Rastogi ◽  
Ajit Kumar Pattanaik ◽  
...  
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Threshold Value ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Phyletic Line ◽  
Actinomycete Strain ◽  
Reference Strains

The taxonomic position of a novel actinomycete, strain RC 1831T, isolated from the sediment of a fish dumping yard at Barkul village near Chilika Lake, Odisha, India, was determined by a polyphasic approach. Based on morphological and chemotaxonomic characteristics the isolate was determined to belong to the genus Streptomyces . The phylogenetic tree based on its nearly complete 16S rRNA gene sequence (1428 nt) with representative strains showed that the strain consistently falls into a distinct phyletic line together with Streptomyces glaucosporus DSM 41689T (98.22 % similarity) and a subclade consisting of Streptomyces atacamensis DSM 42065T (98.40 %), Streptomyces radiopugnans R97 DSM 41901T (98.27 %), Streptomyces fenghuangensis GIMN4.003T (98.33 %), Streptomyces nanhaiensis DSM 41926T (98.13 %), Streptomyces megasporus NBRC 14749T (97.37 %) and Streptomyces macrosporus NBRC 14748T (98.22 %). However, the levels of DNA–DNA relatedness between strain RC 1831T and phylogenetically related strains Streptomyces atacamensis DSM 42065T (28.75±3.25 %) and Streptomyces glaucosporus DSM 41689T (15±2.40 %) were significantly lower than the 70 % threshold value for delineation of genomic species. Furthermore, the isolate could be distinguished phenotypically on the basis of physiological, morphological and biochemical differences from its closest phylogenetic neighbours and other related reference strains. Strain RC 1831T is therefore considered to represent a novel species of the genus Streptomyces , for which the name Streptomyces barkulensis sp. nov. is proposed. The type strain is RC 1831T ( = JCM 18754T = DSM 42082T).

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