scholarly journals Mucilaginibacter koreensis sp. nov., isolated from leaf mould

2014 ◽  
Vol 64 (Pt_7) ◽  
pp. 2274-2279 ◽  
Author(s):  
Cheol Su Park ◽  
Kyudong Han ◽  
Tae-Young Ahn

A Gram-staining-negative, strictly aerobic, rod-shaped, pale-pink pigmented bacterial strain, designated TF8T, was isolated from leaf mould in Cheonan, Republic of Korea. Its taxonomic position was determined through a polyphasic approach. Optimal growth occurred on R2A agar without NaCl supplementation, at 25–28 °C and at pH 6.0–7.0. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain TF8T belongs to the genus Mucilaginibacter in the family Sphingobacteriaceae . The sequence similarity between 16S rRNA genes of strain TF8T and the type strains of other species of the genus Mucilaginibacter ranged from 92.1 to 94.7 %. The closest relatives of strain TF8T were Mucilaginibacter lutimaris BR-3T (94.7 %), M. soli R9-65T (94.5 %), M. litoreus BR-18T (94.5 %), M. rigui WPCB133T (94.0 %) and M. daejeonensis Jip 10T (93.8 %). The major isoprenoid quinone was MK-7 and the major cellular fatty acids were iso-C15 : 0 (33.0 %), summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 24.8 %) and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c; 13.0 %). The major polar lipids of TF8T were phosphatidylethanolamine and three unidentified aminophospholipids. The G+C content of the genomic DNA was 46.2 mol%. On the basis of the data presented here, strain TF8T is considered to represent a novel species of the genus Mucilaginibacter , for which the name Mucilaginibacter koreensis sp. nov. is proposed. The type strain is TF8T ( = KACC 17468T = JCM 19323T).

Author(s):  
Stacey R. Goldberg ◽  
Brad A. Haltli ◽  
Hebelin Correa ◽  
Russell G. Kerr

A Gram-stain-negative, strictly aerobic, motile bacterium, designated strain RKSG073T, was isolated from the sea sponge Aplysina fistularis, collected off the west coast of San Salvador, The Bahamas. Cells were curved-to-spiral rods with single, bipolar (amphitrichous) flagella, oxidase- and catalase-positive, non-nitrate-reducing and required salt for growth. RKSG073T grew optimally at 30–37 °C, pH 6–7, and with 2–3 % (w/v) NaCl. The predominant fatty acids of RKSG073T were summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c) and C16 : 0. Major isoprenoid quinones were identified as Q-10 and Q-9. Phylogenetic analyses of nearly complete 16S rRNA genes and genome sequences positioned strain RKSG073T in a clade with its closest relative Aestuariispira insulae AH-MY2T (92.1 % 16S rRNA gene sequence similarity), which subsequently clustered with Hwanghaeella grinnelliae Gri0909T, Marivibrio halodurans ZC80T and type species of the genera Kiloniella , Thalassospira and Terasakiella . The DNA G+C content calculated from the genome of RKSG073T was 42.2 mol%. On the basis of phylogenetic distinctiveness and polyphasic analysis, here we propose that RKSG073T (culture deposit numbers: ATCC collection = TSD-74T, BCCM collection = LMG 29869T) represents the type strain of a novel genus and species within the family Kiloniellaceae , order Rhodospirillales and class Alphaproteobacteria , for which the name Curvivirga aplysinae gen. nov., sp. nov. is proposed.


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1850-1856 ◽  
Author(s):  
Herbert Seiler ◽  
Anne Bleicher ◽  
Hans-Jürgen Busse ◽  
Josef Hüfner ◽  
Siegfried Scherer

A novel halophilic, Gram-reaction-negative, strictly aerobic, non-motile, rod-shaped and oxidase- and catalase-positive bacterial strain, designated WCC 4520T, was isolated from a semi-hard, Raclette-type cheese. The colonies were yellow–orange; flexirubin-type pigments were not found. The strain hydrolysed gelatin, hippurate, tyrosine and Tweens 20 and 80. Optimal growth was observed with 6–8 % (w/v) NaCl, at pH 7–8 and at 27–30 °C. The genomic DNA G+C content was 33.6 mol%. In phylogenetic analysis based on 16S rRNA gene sequences, strain WCC 4520T appeared to be a member of the family Flavobacteriaceae and the closest phylogenetic neighbours were identified as Psychroflexus gondwanensis DSM 5423T (94.0 % 16S rRNA gene sequence similarity) and Psychroflexus salinarum CCUG 56752T (94.0 %). The predominant cellular fatty acids were iso-C15 : 0, anteiso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH. The only detected quinone was MK-6 and the major polar lipids were phosphatidylethanolamine, an unidentified aminolipid and an unidentified polar lipid. Minor polar lipids and traces of polyamines were also detected. On the basis of the data presented, strain WCC 4520T represents a novel species of the genus Psychroflexus , for which the name Psychroflexus halocasei sp. nov. is proposed. The type strain is WCC 4520T ( = LMG 25857T = CCUG 59705T).


2020 ◽  
Vol 70 (11) ◽  
pp. 5725-5733 ◽  
Author(s):  
Shih-Yao Lin ◽  
Chia-Fang Tsai ◽  
Asif Hameed ◽  
Chiu-Chung Young

A polyphasic taxonomic approach was used to characterize a Gram-stain-positive bacterium, designated strain CC-CFT480T, isolated from soil sampled in a maize field in Taiwan, ROC. Cells of strain CC-CFT480T were rod-shaped, motile with polar flagella, catalase-positive and oxidase-positive. Optimal growth occurred at 30 °С, pH 8 and 3 % NaCl. Phylogenetic analyses based on 16S rRNA genes revealed a distinct taxonomic position attained by strain CC-CFT480T associated with Cerasibacillus quisquiliarum (97.2 % sequence identity), Virgibacillus soli (95.7 %), Virgibacillus carmonensis (95.4 %) and Virgibacillus byunsanensis (95.2 %), and lower sequence similarity values to other species. Average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between strain CC-CFT480T and C. quisquiliarum were 74.2 and 20.1 %, respectively. Strain CC-CFT480T contained iso-C15:0, C16:1 ω7c alcohol and iso-C17:1 ω10c as the predominant fatty acids. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, two unknown aminophospholipids, one uncharacterized aminophospholipid and two unknown phospholipids. The major polyamine was spermidine. The DNA G+C content was 34.8 mol% and the predominant quinone was menaquinone 7 (MK-7). Based on its distinct phylogenetic, phenotypic and chemotaxonomic traits together with results of comparative 16S rRNA gene sequence, ANI and dDDH analyses, strain CC-CFT480T is proposed to represent a novel Cerasibacillus species, for which the name Cerasibacillus terrae sp. nov. (type strain CC-CFT480T=BCRC 81216T=JCM 33498T).


2020 ◽  
Vol 70 (12) ◽  
pp. 6257-6265 ◽  
Author(s):  
Soon Dong Lee ◽  
In Seop Kim

A marine alphaproteobacterium, designated as strain GH3-10T, was isolated from the rhizosphere mud of a halophyte (Suaeda japonica) collected at the seashore of Gangwha Island, Republic of Korea. The isolate was found to be Gram-stain-negative, strictly aerobic, catalase- and oxidase-positive, non-motile, short rods and produced orange-coloured colonies. The 16S rRNA gene- and whole genome-based phylogenetic analyses exhibited that strain GH3-10T belonged to the genus Aurantiacibacter and was most closely related to Aurantiacibacter atlanticus s21-N3T (98.7 % 16S rRNA gene sequence similarity) and Aurantiacibacter marinus KCTC 23554T (98.4 %). The major respiratory quinone was ubiquinone-10. The polar lipids consisted of phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid and an unidentified lipid. The major fatty acids were C18 : 1  ω7c, summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c) and C18 : 1  ω7c 10-methyl. The DNA G+C content was 61.3 mol% (by genome). Average nucleotide identity and DNA–DNA relatedness values between the isolate and its phylogenetically closest relatives, together with phenotypic distinctness warranted the taxonomic description of a new species. On the basis of data obtained by a polyphasic approach, strain GH3-10T (=KCTC 62379T=JCM 32444T) represents a novel species of the genus Aurantiacibacter , for which the name Aurantiacibacter rhizosphaerae sp. nov. is proposed. According to phylogenetic coherence based on 16S rRNA genes and core genomes, it is also proposed that Erythrobacter suaedae Lee et al. 2019. and Erythrobacter flavus Yoon et al. 2003 be transferred to Aurantiacibacter suaedae comb. nov. and Qipengyuania flava comb. nov., respectively.


2020 ◽  
Vol 70 (12) ◽  
pp. 6373-6380 ◽  
Author(s):  
Galina Dubinina ◽  
Natalia Leshcheva ◽  
Natalia Mikheeva ◽  
Stefan Spring ◽  
Meina Neumann-Schaal ◽  
...  

A novel obligately anaerobic spirochete strain K2T was isolated from bottom marine sediments at Crater Bay of Yankicha Island (Kuril Islands, Russia). Strain K2T had helical shape and Gram-negatively stained. The optimal growth conditions were as follows: the optimum temperature was 28–30 °C with range 5–34 °C; optimal pH at 7.0–7.5 with range of 6.8–8.5; NaCl optimum at 3–3.5 % (w/v) and range of 1–7 % (w/v). Strain K2T was catalase- and oxidase-negative. Glucose fermentation products were acetate, lactate, ethanol, CO2, H2. The major fatty acids were C14 : 0, iso-C13 : 0, iso-C15:0, C14 : 0 DMA, iso-C15 : 0 DMA. The G+C content of genomic DNA was 43.2 mol%. Phylogenetic analyses of 16S rRNA genes showed that strain K2T belonged to the genus Oceanispirochaeta of the family Spirochaetaceae . The 16S rRNA gene sequence similarity of strain K2T and O. litoralis DSM 2029T and O. sediminicola DSM 104770T was 96 and 94 %, respectively. Based on the results of our study, we propose the name Oceanispirochaeta crateris sp. nov.; type strain K2T (=DSM 16308T=VKM B-3266T). Also, the taxonomic status of Spirochaeta perfilevii was revised: 16S rRNA genes sequence showed less than 89 % similarity to nearest phylogenetic neighbours. Therefore, we proposed to separate this species into a novel genus Thiospirochaeta - T. perfilievii gen. nov., comb. nov.


2020 ◽  
Vol 70 (12) ◽  
pp. 6402-6407 ◽  
Author(s):  
Yuna Park ◽  
Qingzhen Liu ◽  
Soohyun Maeng ◽  
Won Jung Choi ◽  
Yoonjee Chang ◽  
...  

Two bacterial strains designated as W3-2-3T and HKS04T were isolated from mineral water and a soil sample, respectively, in the Republic of Korea. The 16S rRNA genes of the two strains shared a sequence similarity of 93.5 %. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains W3-2-3T and HKS04T formed a distinct lineage within the genus Nocardioides of the family Nocardioidaceae (order Propionibacteriales ). The closely related species of strain W3-2-3T were Nocardioides albidus (98.9 %), Nocardioides caeni (98.8 %), Nocardioides kongjuensis (98.6 %), Nocardioides aromaticivorans (98.5 %), Nocardioides nitrophenolicus (98.4 %), Nocardioides flava (98.2 %) and Nocardioides ginsengisoli (98.1 %). The closest species of strain HKS04T was Nocardioides halotolerans (98.7 %). The genome sizes of strains W3-2-3T and HKS04T were 4741198 and 5 120341 bp, respectively. The genomic DNA G+C contents of strains W3-2-3T and HKS04T were 73.3 and 72.1 mol%, respectively. The main fatty acids of strain W3-2-3T were C17:1 ω6c and iso-C16:0 and those of strain HKS04T were iso-C16:0 and iso-C16:0 H. The main polar lipids of both strains were diphosphatidylglycerol and phosphatidylglycerol and the predominant respiratory quinone was MK-8(H4), supporting the affiliation of these strains with the genus Nocardioides . Based on the results of biochemical, chemotaxonomic and phylogenetic analyses, two novel species, Nocardioides convexus W3-2-3T (KACC 21211T=LMG 31251T) and Nocardioides anomalus HKS04T (KACC 18879T=LMG 31249T), are proposed.


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 668-674 ◽  
Author(s):  
Xiaoyang Fan ◽  
Tong Yu ◽  
Zhao Li ◽  
Xiao-Hua Zhang

Three Gram-stain-negative, strictly aerobic, rod-shaped with single polar flagellum, yellow-pigmented bacteria, designated strains XH031T, XH038-3 and XH80-1, were isolated from deep-sea sediment of the South Pacific Gyre (41° 51′ S 153° 6′ W) during the Integrated Ocean Drilling Program (IODP) Expedition 329. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolates belonged to the genus Luteimonas and showed the highest 16S rRNA gene sequence similarity with Luteimonas aestuarii B9T (96.95 %), Luteimonas huabeiensis HB2T (96.93 %) and Xanthomonas cucurbitae LMG 690T (96.92 %). The DNA G+C contents of the three isolates were 70.2–73.9 mol%. The major fatty acids were iso-C15 : 0, iso-C16 : 0, iso-C11 : 0 and C16 : 010-methyl and/or iso-C17 : 1ω9c. The major respiratory quinone was ubiquinone-8 (Q-8). The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and one unknown phospholipid. On the basis of data from polyphasic analysis, the three isolates represent a novel species of the genus Luteimonas , for which the name Luteimonas abyssi sp. nov. is proposed. The type strain is XH031T ( = DSM 25880T = CGMCC 1.12611T).


2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 2851-2857 ◽  
Author(s):  
Jina Lee ◽  
Tae Woong Whon ◽  
Na-Ri Shin ◽  
Seong Woon Roh ◽  
Jandi Kim ◽  
...  

A slightly halophilic, Gram-negative, strictly aerobic, non-motile rod, designated TW15T, was isolated from an ark clam in South Korea. Growth occurred at 10–37 °C, with 1–5 % (w/v) NaCl and at pH 7.0–10.0. Optimal growth occurred at 25–30 °C, with 2 % (w/v) NaCl and at pH 8.0. Strain TW15T exhibited both oxidase and catalase activities. The major fatty acids of strain TW15T were summed feature 8 (consisting of C18 : 1ω7c and/or C18 : 1ω6c) and 11-methyl C18 : 1ω7c. The predominant isoprenoid quinone was ubiquinone-10 (Q-10). The polar lipids of strain TW15T comprised phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, an unidentified phospholipid, an unidentified aminolipid and five unidentified lipids. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain TW15T was most closely related to Ruegeria lacuscaerulensis DSM 11314T (98.0 % 16S rRNA gene sequence similarity). DNA–DNA relatedness with closely related strains was <52±3 %. The DNA G+C content was 55.7 mol%. On the basis of phenotypic, genotypic and phylogenetic data, strain TW15T represents a novel species of the genus Ruegeria , for which the name Ruegeria conchae sp. nov. is proposed. The type strain is TW15T ( = KACC 15115T  = JCM 17315T).


2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 703-708 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A novel bacterium, designated strain F051-1T, isolated from a seawater sample collected from the coast at Damupo beach in Pohang, Korea, was investigated in a polyphasic taxonomic study. Cells were yellow-pigmented, strictly aerobic, Gram-staining-negative and rod-shaped. The temperature, pH and NaCl ranges for growth were 4–30 °C, pH 6.0–9.0 and 1.0–6.0 % (w/v), respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain F051-1T belongs to the genus Psychroserpens in the family Flavobacteriaceae . Its closest relatives were Psychroserpens burtonensis ACAM 188T (96.8 % 16S rRNA gene sequence similarity) and Psychroserpens mesophilus KOPRI 13649T (95.7 %). The major cellular fatty acids were iso-C15 : 0, iso-C15 : 1 G and anteiso-C15 : 0. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and eight unidentified lipids. The major respiratory quinone was menaquinone-6 and the genomic DNA G+C content of the strain was 33.5 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain F051-1T represents a novel species within the genus Psychroserpens , for which the name Psychroserpens damuponensis sp. nov. is proposed. The type strain is F051-1T ( = KCTC 23539T  = JCM 17632T).


2020 ◽  
Vol 70 (4) ◽  
pp. 2369-2381 ◽  
Author(s):  
Dmitriy V. Volokhov ◽  
Dénes Grózner ◽  
Miklós Gyuranecz ◽  
Naola Ferguson-Noel ◽  
Yamei Gao ◽  
...  

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.


Sign in / Sign up

Export Citation Format

Share Document