scholarly journals Cryobacterium roopkundense sp. nov., a psychrophilic bacterium isolated from glacial soil

2010 ◽  
Vol 60 (4) ◽  
pp. 866-870 ◽  
Author(s):  
G. S. N. Reddy ◽  
Suman Pradhan ◽  
Ruth Manorama ◽  
S. Shivaji

Strain RuGl7T was isolated from a soil sample collected at the periphery of the glacial Lake Roopkund in the Himalayan mountain range, India. Cells of RuGl7T were Gram-positive, aerobic, rod-shaped, motile and grew optimally between 15 and 18 °C. Cells of RuGl7T contained 2,4-diaminobutyric acid in the cell-wall peptidoglycan and the major menaquinones were MK-10, MK-11 and MK-12. The polar lipids present were diphosphatidylglycerol and phosphatidylglycerol and an unknown lipid and the major fatty acid was anteiso-C15 : 0. Based on the above characteristics, strain RuGl7T was assigned to the genus Cryobacterium. Strain RuGl7T shared a 16S rRNA gene sequence similarity of 97.0 and 99.0 % with Cryobacterium psychrotolerans JCM 13925T and Cryobacterium psychrophilum JCM 1463T, respectively. However, DNA–DNA relatedness values between strain RuGl7T and C. psychrotolerans and C. psychrophilum were 28 and 23 %, respectively. Furthermore, strain RuGl7T exhibited several phenotypic and genotypic differences when compared with C. psychrotolerans, C. psychrophilum and Cryobacterium mesophilum. Based on these differentiating characteristics, strain RuGl7T was identified as a novel species of the genus Cryobacterium for which the name Cryobacterium roopkundense sp. nov. is proposed. The type strain is RuGl7T (=DSM 21065T=JCM 15131T).

2007 ◽  
Vol 57 (8) ◽  
pp. 1788-1792 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Mi-Hwa Lee ◽  
Tae-Kwang Oh

A Gram-negative, non-motile and rod-, oval- or coccoid-shaped bacterial strain, DSW-25T, which is phylogenetically closely related to the genera Staleya and Sulfitobacter, was isolated from seawater of the East Sea, Korea, and subjected to a polyphasic taxonomic study. Strain DSW-25T grew optimally at pH 7.0–8.0 and at 25 °C. It contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. Major polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and an unidentified phospholipid. The DNA G+C content was 56.9 mol%. Strain DSW-25T exhibited 16S rRNA gene sequence similarity values of 98.4 % to the type strain of Staleya guttiformis and of 96.6–97.6 % to Sulfitobacter species. There were no distinct phenotypic, particularly chemotaxonomic, properties to differentiate Staleya guttiformis and strain DSW-25T from the genus Sulfitobacter. DNA–DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain DSW-25T differs from recognized Sulfitobacter species and Staleya guttiformis. On the basis of phenotypic, chemotaxonomic, phylogenetic and genetic data, strain DSW-25T was classified in the genus Sulfitobacter as a member of a novel species, for which the name Sulfitobacter donghicola sp. nov. is proposed. The type strain is strain DSW-25T (=KCTC 12864T =JCM 14565T). It is also proposed that Staleya guttiformis be transferred to the genus Sulfitobacter as Sulfitobacter guttiformis comb. nov.


2005 ◽  
Vol 55 (5) ◽  
pp. 2113-2117 ◽  
Author(s):  
P. Chaturvedi ◽  
G. S. N. Reddy ◽  
S. Shivaji

Strain HHS 11T was isolated from a water sample collected from the snout of Hamta glacier located in the Himalayan mountain ranges of India. Phenotypic, chemotaxonomic and phylogenetic analyses established the affiliation of the isolate to the genus Dyadobacter. HHS 11T possessed 96 and 95 % 16S rRNA gene sequence similarity with respect to Dyadobacter crusticola and Dyadobacter fermentans, respectively. Furthermore, strain HHS 11T differs from D. crusticola and D. fermentans in a number of phenotypic characteristics. These data suggest that strain HHS 11T represents a novel species of the genus Dyadobacter, for which the name Dyadobacter hamtensis sp. nov. is proposed. The type strain is HHS 11T (=JCM 12919T=MTCC 7023T).


2004 ◽  
Vol 54 (5) ◽  
pp. 1811-1814 ◽  
Author(s):  
Wen-Jun Li ◽  
Yu-Qin Zhang ◽  
Dong-Jin Park ◽  
Chang-Tian Li ◽  
Li-Hua Xu ◽  
...  

A mesophilic bacterium, designated strain YIM 31327T, was isolated from a forest soil sample collected from Yunnan Province, China, and was then investigated using a polyphasic approach. The strain grew optimally at 28–30 °C and pH 7·2. The cells were Gram-negative, short, rod-shaped, motile and non-spore-forming with flagella. The major ubiquinone was Q-8 and the cellular fatty acids were C16 : 0 and C12 : 0. The DNA G+C content of strain YIM 31327T was 62·8 mol%. Phylogenetic analysis revealed that strain YIM 31327T was a member of the β-Proteobacteria, being most closely related to Duganella zoogloeoides, with which it exhibited less than 96 % 16S rRNA gene sequence similarity. On the basis of the phenotypic and genotypic differences between strain YIM 31327T and D. zoogloeoides, a novel species, Duganella violaceinigra sp. nov., is proposed, with YIM 31327T (=CIP 108077T=KCTC 12193T) as the type strain.


2005 ◽  
Vol 55 (6) ◽  
pp. 2351-2354 ◽  
Author(s):  
Jakub Šmerda ◽  
Ivo Sedláček ◽  
Zdena Páčová ◽  
Eva Durnová ◽  
Alexandra Smíšková ◽  
...  

A Gram-variable, facultatively anaerobic, endospore-forming bacterium was isolated from surface-sterilized seeds of the garden pea and characterized with phenotypic and molecular methods. A PCR with the Paenibacillus-specific primer PAEN515F and the 16S rRNA gene sequence indicated that strain C/2T belongs to the genus Paenibacillus and is closely related to Paenibacillus phyllosphaerae (94·0 % sequence similarity). Strain C/2T generated a unique phenotypic profile, in particular for the production of acid from substrates. The DNA G+C content (50·8 mol%) and the major fatty acid (anteiso-C15 : 0) are consistent with the genus Paenibacillus. DNA–DNA hybridization distinguished strain C/2T from other phylogenetically related Paenibacillus species and, therefore, strain C/2T (=CCM 4839T=LMG 23002T) is here described as the type strain of a novel species, for which the name Paenibacillus mendelii sp. nov. is proposed.


2010 ◽  
Vol 60 (7) ◽  
pp. 1581-1584 ◽  
Author(s):  
De-Chao Zhang ◽  
Hong-Can Liu ◽  
Yu-Hua Xin ◽  
Yu-Guang Zhou ◽  
Franz Schinner ◽  
...  

Strain BZ92rT was isolated from hydrocarbon-contaminated soil. Cells were Gram-negative, aerobic, rod-shaped and cold-adapted (growth at 1–25 °C). The major fatty acids were iso-C15 : 0 (25.6 %), iso-C17 : 1 ω9c (24.9 %), iso-C11 : 0 (18.4 %) and iso-C11 : 0 3-OH (16.2 %). The predominant ubiquinone was ubiquinone-8. The genomic DNA G+C content was 72.0 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain BZ92rT was a member of the genus Luteimonas (94.5–95.2 % 16S rRNA gene sequence similarity). On the basis of phenotypic, chemotaxonomic and phylogenetic distinctiveness, strain BZ92rT was considered to represent a novel species of the genus Luteimonas. The name Luteimonas terricola sp. nov. is proposed, with BZ92rT (=DSM 22344T =CGMCC 1.8985T) as the type strain.


2007 ◽  
Vol 57 (7) ◽  
pp. 1424-1428 ◽  
Author(s):  
Wen-Jun Li ◽  
Ping Xu ◽  
Peter Schumann ◽  
Yu-Qin Zhang ◽  
Rüdiger Pukall ◽  
...  

A Gram-positive, motile, short-rod-shaped strain, designated YIM 004T, was isolated from a forest-soil sample collected from Lijiang, Yunnan Province, China, and was investigated using a polyphasic taxonomic approach. The isolate contained chemotaxonomic markers that corresponded to those of its phylogenetic neighbour, Georgenia muralis, i.e. it possessed peptidoglycan type A4α with lysine as the diagnostic cell-wall diamino acid, the predominant menaquinone was MK-8(H4) and the major fatty acid was ai-C15 : 0. The G+C content of the genomic DNA was 72.9 mol%. Strain YIM 004T exhibited a 16S rRNA gene sequence similarity of 97.3 % and a DNA–DNA relatedness value of 18 % with respect to G. muralis DSM 14418T. On the basis of the phenotypic and genotypic differences between the isolate and G. muralis, strain YIM 004T represents a novel species of the genus Georgenia, for which the name Georgenia ruanii sp. nov. is proposed. The type strain is YIM 004T (=CCTCC AB 204065T=DSM 17458T=KCTC 19029T). In addition, an emended description of the genus Georgenia is presented.


2007 ◽  
Vol 57 (2) ◽  
pp. 302-305 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Tae-Kwang Oh

A Gram-negative, non-motile, rod- or oval-shaped Sulfitobacter-like bacterial strain, SW-265T, was isolated from seawater at Hwajinpo, Korea, and was subjected to a polyphasic taxonomic study. Strain SW-265T grew optimally at pH 7.0–8.0 and 30 °C in the presence of 2 % (w/v) NaCl. It contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. The DNA G+C content was 57.8 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain SW-265T fell within the cluster comprising Sulfitobacter species. The levels of 16S rRNA gene sequence similarity between strain SW-265T and the type strains of Sulfitobacter species ranged from 97.1 to 98.7 %. DNA–DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain SW-265T differs from recognized Sulfitobacter species. On the basis of the phenotypic, phylogenetic and genetic data, strain SW-265T represents a novel species of the genus Sulfitobacter, for which the name Sulfitobacter marinus sp. nov. is proposed. The type strain is SW-265T (=KCTC 12738T=JCM 13602T).


2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 580-585 ◽  
Author(s):  
Jiewei Wang ◽  
Jianli Zhang ◽  
Huancheng Pang ◽  
Yabo Zhang ◽  
Yuyi Li ◽  
...  

A Gram-stain-negative, rod-shaped bacterium, designated strain Y9T, was isolated from a soil sample collected in Ningxia Province in China and was characterized to determine its taxonomic position. Strain Y9T contained Q-8 as the predominant ubiquinone. Major fatty acid components were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and C16 : 0. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The G+C content of the genomic DNA of strain Y9T was 68.7 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that the strain fell within the evolutionary radiation encompassed by the genus Massilia. Levels of 16S rRNA gene sequence similarity between strain Y9T and the type strains of recognized Massilia species ranged from 95.2 to 98.2 %, the highest values being with Massilia albidiflava 45T (98.2 %) and Massilia lutea 101T (98.0 %). However, levels of DNA–DNA relatedness between strain Y9T and M. albidiflava KCTC 12343T and M. lutea KCTC 12345T were 37 and 26 %, respectively. Strain Y9T was clearly differentiated from its nearest phylogenetic relatives in the genus Massilia based on phenotypic, chemotaxonomic and phylogenetic properties. Therefore, strain Y9T is considered to represent a novel species of the genus Massilia, for which the name Massilia flava sp. nov. is proposed. The type strain is Y9T ( = CGMCC 1.10685T  = KCTC 23585T).


2006 ◽  
Vol 56 (10) ◽  
pp. 2341-2344 ◽  
Author(s):  
Jakub Šmerda ◽  
Ivo Sedláček ◽  
Zdena Páčová ◽  
Eva Krejčí ◽  
Ladislav Havel

In 2001, a Gram-variable, facultatively anaerobic, endospore-forming bacterium isolated from biodeteriorated mural paintings in the Servilia tomb of the Roman necropolis of Carmona was deposited as Paenibacillus strain LMG 19508. Subsequently, the strain was characterized in detail using phenotypic and molecular methods. The 16S rRNA gene sequence confirmed that the strain belongs to the genus Paenibacillus and indicated its relationship to Paenibacillus mendelii CCM 4839T (96.7 % sequence similarity). The predominant menaquinone was MK-7. The cell wall contained meso-diaminopimelic acid of the A1γ type. The DNA G+C content (50 mol%) and the major fatty acid (anteiso-C15 : 0) of strain LMG 19508T were also consistent with its affiliation to the genus Paenibacillus. DNA–DNA hybridization distinguished strain LMG 19508T from other phylogenetically related Paenibacillus species. Therefore, the isolate represents a novel species, for which the name Paenibacillus sepulcri sp. nov. is proposed. The type strain is CCM 7311T (=LMG 19508T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2612-2617 ◽  
Author(s):  
P. Shalem Raj ◽  
Ch. Sasikala ◽  
E. V. V. Ramaprasad ◽  
Y. Subhash ◽  
H.-J. Busse ◽  
...  

A rod-shaped, non-motile, Gram-stain-positive, catalase-positive, starch-hydrolysing strain, JC16T, was isolated from a semi-arid tropical soil from India. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain JC16T clustered with the type species of the genus Chryseomicrobium, Chryseomicrobium imtechense MW 10T, a member of the family Planococcaceae within the phylum Firmicutes with 99.3 % sequence similarity. Major (>10 %) fatty acids of strain JC16T were iso-C15 : 0 and iso-C16 : 0. Minor (<10 and >1 %) amounts of C16 : 0, iso-C14 : 0, anteiso-C15 : 0, iso-C17 : 0, anteiso-C17 : 0, iso-C17 : 1ω10c and C16 : 1ω11c are present in strain JC16T. Polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phospholipids (PL2–4), aminolipids (AL1, 2) and an unknown lipid. Cell wall peptidoglycan was of the type l-Orn–d-Glu. The quinone system was composed of MK-7, MK-8 and MK-6. Genomic DNA G+C content of strain JC16T was 57.6 mol%. Distinct physiological, chemotaxonomic and genotypic differences (37 % reassociation based on DNA–DNA hybridization) from Chryseomicrobium imtechense MW 10T support the classification of strain JC16T as a representative of a novel species in the genus Chryseomicobium, for which the name Chryseomicrobium amylolyticum sp. nov. (type strain JC16T = DSM 23442T = NBRC 105215T) is proposed.


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