Imtechella halotolerans gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from estuarine water

2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2624-2630 ◽  
Author(s):  
Vikram Surendra ◽  
Pant Bhawana ◽  
Korpole Suresh ◽  
T. N. R. Srinivas ◽  
Pinnaka Anil Kumar

A novel Gram-negative, rod-shaped, non-motile, non-sporulating bacterium, designated strain K1T, was isolated from an estuarine water sample collected from Kochi, Kerala, India. Colonies on marine agar were circular, 2.0–2.5 mm in diameter, shiny, yellow, translucent and convex with entire margins. Strain K1T was negative for ornithine decarboxylase, lysine decarboxylase, nitrate reduction and H2S production. The fatty acids were dominated by iso-branched components with a high abundance of iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH; MK-6 (64 %) and MK-7 (34 %) were found as major respiratory quinones; and phosphatidylethanolamine, two unidentified aminolipids, four unidentified phospholipids and two unidentified lipids were major polar lipids. The DNA G+C content of strain K1T was 46.1 mol%. 16S rRNA gene sequence analysis indicated that strain K1T was related most closely to the type strain of Zhouia amylolytica (pairwise sequence similarity of 93.0 %). Phylogenetic analysis showed that strain K1T formed a distinct branch within the family Flavobacteriaceae and clustered with the clade comprising species of the genera Zhouia , Coenonia and Capnocytophaga , being phylogenetically most closely related to the type strain of Zhouia amylolytica at a distance of 9.2 % (90.8 % similarity). Other species of the genera within the same clade were related to strain K1T at distances of 15.0–23.1 %. Based on phenotypic and chemotaxonomic characteristics and on phylogenetic inference, strain K1T is considered to represent a novel species of a new genus in the family Flavobacteriaceae , for which the name Imtechella halotolerans gen. nov., sp. nov. is proposed. The type strain of Imtechella halotolerans is K1T ( = MTCC 11055T = JCM 17677T).

2020 ◽  
Vol 70 (3) ◽  
pp. 1496-1502 ◽  
Author(s):  
Jin Li ◽  
Yan Xu ◽  
Jiarong Feng ◽  
Mingqi Zhong ◽  
Qingyi Xie ◽  
...  

A Gram-stain-negative, aerobic, non-motile and rod-shaped marine bacterium, CW2-9T, was isolated from algae collected from Fujian Province in PR China. 16S rRNA gene sequence analysis showed that this strain was affiliated with the genus Tamlana in the family Flavobacteriaceae of the class Flavobacteriia and was very similar to the type strain Tamlana sedimentorum MCCC 1A10799T (96.3 % sequence similarity). The whole genome of strain CW2-9T comprised 3 997 513 bp with a G+C content of 34.3 mol%. The average nucleotide identity value between strain CW2-9T and T. sedimentorum MCCC 1A10799T was 73.8 %. Growth was observed from 15 to 40 °C (optimum, 30 °C), at pH from pH 5.0 to 10.0 (pH 8.0) and in the presence of 0–4 % (w/v) NaCl (0–1 %). The major fatty acids (>10 % of the total) were iso-C15 : 0, iso G-C15 : 1, iso-C17 : 0 3-OH and anteiso-C15 : 0. The predominant menaquinone was MK-6. The combined phylogenetic, physiological and chemotaxonomic data indicate that strain CW2-9T represents a novel species in the genus Tamlana , for which the name Tamlana fucoidanivorans sp. nov. is proposed. The type strain is CW2-9T (=CICC 24749T=KCTC 72389T).


Author(s):  
Yan Xu ◽  
Jin Li ◽  
Yu Hu ◽  
Haibin Li ◽  
Tao Peng ◽  
...  

A Gram-negative, aerobic, rod-shaped, non-flagellated and motile by gliding bacterium HL2-2T, was isolated from the surface of the brown alga Endarachne binghamiae in China. The 16S rRNA gene sequence analysis showed that this strain was affiliated with the genus Winogradskyella in the family Flavobacteriaceae and presented great similarity with the type strain Winogradskyella litoriviva KMM 6491T (97.9 % sequence similarity). The whole genome of strain HL2-2T comprised 3.6 Mbp with a G+C content of 31.9 mol%. The average nucleotide identity between strain HL2-2T and Winogradskyella litoriviva KMM 6491T was 83.7 %. Growth of the isolated strain was observed from 20–40 °C (optimum, 30 °C), at pH ranged from 5.5 to 8.0 (optimum, pH 6.0) and in the presence of 0–5 % (w/v) NaCl (optimum, 0–2 %). The major fatty acids (>10 % of the total) were C16 : 0, iso-C15 : 0 and the predominant menaquinone was MK-6. The combined phylogenetic, physiological and chemotaxonomic analysis show that the strain HL2-2T represents a novel species belonging to the genus Winogradskyella , for which the name Winogradskyella endarachnes sp. nov. is proposed, and which the type strain is HL2-2T (=CICC 24857T=KCTC 72882T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2490-2496 ◽  
Author(s):  
◽  
V. Bhumika ◽  
T. N. R. Srinivas ◽  
P. Anil Kumar

A novel Gram-negative, rod-shaped, non-motile bacterium, designated strain N1T, was isolated from a marine water sample collected from the sea shore, Bay of Bengal, Visakhapatnam, India. The strain was positive for starch hydrolysis, nitrate reduction and ornithine decarboxylase activities and negative for citrate utilization, urease, oxidase, catalase and DNase activities. The predominant fatty acids were C16 : 0 3-OH, iso-C15 : 0, iso-C15 : 0 3-OH, iso-C17 : 0 3-OH, anteiso-C15 : 0, C16 : 0, C15 : 0 3-OH, and C16 : 1ω7c and/or iso-C15 : 0 2-OH (summed feature 3). Strain N1T contained menaquinone 6 (MK-6) as the sole respiratory quinone. The only polyamine was homospermidine and the major polar lipids were phosphatidylethanolamine (PE), three unidentified aminolipids (AL1–AL3) and two unidentified lipids (L1, L2). The DNA G+C content of the strain was 36.3 mol%. 16S rRNA gene sequence analysis indicated that strain N1T was a member of the genus Flavobacterium and closely related to Flavobacterium resistens with pairwise sequence similarity of 96.5 %. Phylogenetic analysis showed that strain N1T clustered with Flavobacterium glycines and Flavobacterium daejeonense with a distance of 4.8 and 6.0 % (95.2 and 94.0 % similarity), respectively. Based on the phenotypic characteristics and on phylogenetic inference, strain N1T represents a novel species of the genus Flavobacterium , for which the name Flavobacterium nitratireducens sp. nov. is proposed. The type strain is N1T ( = MTCC 11155T = JCM 17678T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2410-2417 ◽  
Author(s):  
Shih-Yao Lin ◽  
Asif Hameed ◽  
You-Cheng Liu ◽  
Yi-Han Hsu ◽  
Wei-An Lai ◽  
...  

An aerobic, Gram-stain-negative, rod-shaped bacterium with a single polar flagellum, designated CC-OPY-1T, was isolated from an oil-contaminated site in Taiwan. CC-OPY-1T produces siderophores, and can grow at temperatures of 25–37 °C and pH 5.0–9.0 and tolerate <5 % (w/v) NaCl. The 16S rRNA gene sequence analysis of CC-OPY-1T showed high pairwise sequence similarity to Pseudomonas alcaligenes BCRC 11893T (97.1 %), Pseudomonas. alcaliphila DSM 17744T (97.1 %), Pseudomonas tuomuerensis JCM 14085T (97.1 %), Pseudomonas toyotomiensis JCM 15604T (96.9 %) and lower sequence similarity to remaining species of the genus Pseudomonas . The phylogenetic trees reconstructed based on gyrB and rpoB gene sequences supported the classification of CC-OPY-1T as a novel member of the genus Pseudomonas . The predominant quinone system of strain CC-OPY-1T was ubiquinone (Q-9) and the DNA G+C content was 68.4±0.3 mol%. The major fatty acids were C12 : 0, C16 : 0, C17 : 0 cyclo and summed features 3 and 8 consisting of C16 : 1ω7c/C16 : 1ω6c and C18 : 1ω7c/C18 : 1ω6c, respectively. The major polar lipids were phosphatidylethanolamine (PE), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG), phosphatidylcholine (PC) and two unknown phospholipids (PL1–2). Due to distinct phylogenetic, phenotypic and chemotaxonomic features, CC-OPY-1T is proposed to represent a novel species within the genus Pseudomonas for which the name Pseudomonas sagittaria sp. nov. is proposed. The type strain is CC-OPY-1T ( = BCRC 80399T = JCM 18195T).


2020 ◽  
Vol 70 (3) ◽  
pp. 1850-1860 ◽  
Author(s):  
Zahra Noviana ◽  
Selma Vieira ◽  
Javier Pascual ◽  
Serge Alain Tanemossu Fobofou ◽  
Manfred Rohde ◽  
...  

Two strains of the family Rhodospirillaceae were isolated from the rhizosphere of the medicinal plant Hypericum perforatum. Cells of both strains were Gram-stain-negative, motile by means of a single polar flagellum, non-spore-forming, non-capsulated, short rods that divided by binary fission. Colonies were small and white. Strains R5913T and R5959T were oxidase-positive, mesophilic, neutrophilic and grew optimally without NaCl. Both grew under aerobic and microaerophilic conditions and on a limited range of substrates with best results on yeast extract. Major fatty acids were C19 : 0 cyclo ω8c and C16 : 0; in addition, C18 : 1ω7c was also found as a predominant fatty acid in strain R5913T. The major respiratory quinone was ubiquinone 10 (Q-10). The DNA G+C contents of strains R5913T and R5959T were 66.0 and 67.4 mol%, respectively. 16S rRNA gene sequence comparison revealed that the closest relatives (<92 % similarity) of the strains are Oceanibaculum pacificum MCCC 1A02656T, Dongia mobilis CGMCC 1.7660T, Dongia soli D78T and Dongia rigui 04SU4-PT. The two novel strains shared 98.6 % sequence similarity and represent different species on the basis of low average nucleotide identity of their genomes (83.8 %). Based on the combined phenotypic, genomic and phylogenetic investigations, the two strains represent two novel species of a new genus in the family Rhodospirillaceae , for which the name Hypericibacter gen. nov. is proposed, comprising the type species Hypericibacter terrae sp. nov. (type strain R5913T=DSM 109816T=CECT 9472T) and Hypericibacter adhaerens sp. nov. (type strain R5959T=DSM 109817T=CECT 9620T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2690-2699 ◽  
Author(s):  
S. Wellner ◽  
N. Lodders ◽  
S. P. Glaeser ◽  
P. Kämpfer

Three pink-pigmented, aerobic, Gram-stain-negative, rod-shaped and facultatively methylotrophic strains were isolated from the phyllosphere of Trifolium repens and Cerastium holosteoides. 16S rRNA gene sequence analysis support the affiliation of all strains to the genus Methylobacterium . The closest relatives of strains C34T and T5 were Methylobacterium gnaphalii 23eT (98.0 and 98.5 % sequence similarity, respectively) and Methylobacterium organophilum JCM 2833T (97.0 and 97.2 %, respectively). Strain TA73T showed the highest sequence similarities to Methylobacterium marchantiae JT1T and Methylobacterium bullatum F3.2T (both 97.9 %), followed by Methylobacterium phyllosphaerae CBMB27T and Methylobacterium brachiatum DSM 19569T (both 97.8 %), Methylobacterium cerastii C15T and Methylobacterium radiotolerans JCM 2831T (both 97.7 %). The major components in the fatty acid profiles were C18 : 1ω7c, C16 : 0 and one unknown fatty acid for strain TA73T and C18 : 1ω7c, C16 : 1ω7c/iso-C15 : 0 2-OH, C18 : 0 and C16 : 0 for strains C34T and T5. Physiological and biochemical analysis, including DNA–DNA hybridization, revealed clear differences between the investigated strains and their closest phylogenetic neighbours. DNA–DNA hybridization studies also showed high similarities between strains C34T and T5 (59.6–100 %). Therefore, the isolates represent two novel species within the genus Methylobacterium , for which the names Methylobacterium trifolii sp. nov. (type strain TA73T = LMG 25778T = CCM 7786T) and Methylobacterium thuringiense sp. nov. (type strain C34T = LMG 25777T = CCM 7787T) are proposed.


2012 ◽  
Vol 62 (Pt_10) ◽  
pp. 2410-2416 ◽  
Author(s):  
Soo-Jin Kim ◽  
Tomohiko Tamura ◽  
Moriyuki Hamada ◽  
Jae-Hyung Ahn ◽  
Hang-Yeon Weon ◽  
...  

A Gram-positive, aerobic, non-motile, short rod, designated SMC46T, was isolated from a spent mushroom compost sample collected in the Suwon region, South Korea. 16S rRNA gene sequence analysis revealed that strain SMC46T was a member of the family Microbacteriaceae ; however, the isolate formed a branch separate from other genera within the family. Sequence similarity between strain SMC46T and other members of the family Microbacteriaceae was ≤97 %, the highest sequence similarity being with Frigoribacterium faeni 801T and Frondihabitans australicus E1HC-02T (both 97.0 %). Some chemotaxonomic properties of strain SMC46T were consistent with those of the family Microbacteriaceae : MK-11 and MK-12 as the predominant menaquinones, anteiso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0 as the major cellular fatty acids and diphosphatidylglycerol, phosphatidylglycerol and an unidentified glycolipid as the polar lipids. However, strain SMC46T contained a B-type peptidoglycan not previously found in the family Microbacteriaceae . The DNA G+C content was 68 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic distinctiveness, strain SMC46T was considered to represent a novel genus and species in the family Microbacteriaceae , for which the name Compostimonas suwonensis gen. nov., sp. nov. is proposed. The type strain of the type species is SMC46T ( = KACC 13354T  = NBRC 106304T).


2013 ◽  
Vol 63 (Pt_12) ◽  
pp. 4591-4598 ◽  
Author(s):  
You-Cheng Liu ◽  
Li-Sen Young ◽  
Shih-Yao Lin ◽  
Asif Hameed ◽  
Yi-Han Hsu ◽  
...  

An aerobic, Gram-stain-negative, rod-shaped bacterium (designated strain CC-G9AT), motile by a polar-flagellum, was isolated from a hot spring water sample in Taiwan. Strain CC-G9AT could grow at 20–42 °C, pH 6.0–10.0 and tolerate up to 7 % (w/v) NaCl. The 16S rRNA gene sequence analysis of strain CC-G9AT showed pairwise sequence similarity to Pseudomonas mendocina LMG 1223T (97.7 %), Pseudomonas alcaligenes ATCC 14909T (97.8 %), Pseudomonas alcaliphila DSM 17744T (97.8 %), Pseudomonas toyotomiensis JCM 15604T (97.6 %), Pseudomonas oleovorans subsp. lubricantis DSM 21016T (97.6 %) and Pseudomonas argentinensis BCRC 17807T (97.5 %), and lower sequence similarity to other species of the genus Pseudomonas . According to DNA–DNA association analysis, the relatedness of strain CC-G9AT to P. mendocina BCRC 10458T, P. alcaliphila DSM 17744T, P. alcaligenes BCRC 11893T, P. oleovorans subsp. lubricantis DSM 21016T, P. argentinensis BCRC 17807T and P. oleovorans subsp. oleovorans BCRC 11902 was 55.1±3.1, 13.7±1.5, 14.1±1.8, 58.5±1.1, 28.9±2.0 and 28.6±1.8 %, respectively. The evolutionary trees reconstructed based on 16S rRNA, gyrB and rpoB gene sequences revealed varying phylogenetic neighbourhoods of strain CC-G9AT with regard to the most closely related type strains. The predominant quinone system was ubiquinone (Q-9) and the DNA G+C content was 64.3±1.3 mol%. The major fatty acids were C10 : 0 3-OH, C12 : 0, C12 : 0 3-OH, C16 : 0 and summed features 3 and 8 consisting of C16 : 1ω7c/C16 : 1ω6c and C18 : 1ω7c/C18 : 1ω6c, respectively. The major polar lipids were diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and phosphatidylglycerol. According to distinct phylogenetic, phenotypic and chemotaxonomic features, strain CC-G9AT is proposed to represent a novel species within the genus Pseudomonas for which the name Pseudomonas guguanensis sp. nov. is proposed. The type strain is CC-G9AT ( = BCRC 80438T = JCM 18416T).


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1228-1234 ◽  
Author(s):  
Anil Sazak ◽  
Nevzat Sahin ◽  
Mustafa Camas

The taxonomic position of two soil actinomycetes, strains A2012T and A2019T, isolated from Turkish soils, was determined using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that the strains belonged to the family Nocardiaceae . Strains A2012T and A2019T were most closely related to Nocardia caishijiensis DSM 44831T (98.9 %) and Nocardia mexicana CIP 108295T (98.6 %), respectively; similarity to other type strains of the genus Nocardia ranged from 96.9 to 97.9 %. However, DNA–DNA relatedness and phenotypic data demonstrated that strains A2012T and A2019T could be clearly distinguished from members of the most closely related Nocardia species. It is evident from the genotypic and phenotypic data that the two isolates represent two novel species of the genus Nocardia . It is proposed, therefore, that strains A2012T and A2019T be classified in the genus Nocardia as representatives of Nocardia goodfellowii sp. nov. (type strain A2012T = DSM 45516T = NRRL B-24833T = KCTC 19986T) and Nocardia thraciensis sp. nov. (type strain A2019T = DSM 45517T = NRRL B-24834T = KCTC 19985T), respectively.


2020 ◽  
Vol 70 (12) ◽  
pp. 6266-6283 ◽  
Author(s):  
Ceshing Sheu ◽  
Zhi-Hao Li ◽  
Shih-Yi Sheu ◽  
Che-Chia Yang ◽  
Wen-Ming Chen

Two Gram-stain-negative, aerobic, non-motile bacteria, designated KMS-5T and CYK-10T, were isolated from freshwater environments. 16S rRNA gene sequence similarity results indicated that these two novel strains belong to the family Rhodobacteraceae . Strain KMS-5T is closely related to species within the genus Tabrizicola (96.1–96.8 % sequence similarity) and Cypionkella (96.5–97.0 %). Strain CYK-10T is closest to Rhodobacter thermarum YIM 73036T with 96.6 % sequence similarity. Phylogenetic analyses based on 16S rRNA gene sequences and an up-to-date bacterial core gene set showed that strain KMS-5T is affiliated with species in the genus Tabrizicola and strain CYK-10T is placed in a distinct clade with Rhodobacter blasticus ATCC 33485T, Rhodobacter thermarum YIM 73036T and Rhodobacter flagellatus SYSU G03088T. These two strains shared common chemotaxonomic features comprising Q-10 as the major quinone, phosphatidylethanolamine, phosphatidylglycerol and phosphatidylcholine as the principal polar lipids, and C18 : 1  ω7c as the main fatty acid. The average nucleotide identity, average amino acid identity and digital DNA–DNA hybridization values between these two novel isolates and their closest relatives were below the cut-off values of 95–96, 90 and 70 %, respectively, used for species demarcation. The obtained polyphasic taxonomic data suggested that strain KMS-5T represents a novel species within the genus Tabrizicola , for which the name Tabrizicola oligotrophica sp. nov. is proposed with KMS-5T (=BCRC 81196T=LMG 31337T) as the type strain, and strain CYK-10T should represent a novel species of the genus Rhodobacter , for which the name Rhodobacter tardus sp. nov. is proposed with CYK-10T (=BCRC 81191T=LMG 31336T) as the type strain.


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