scholarly journals Flavobacterium ceti sp. nov., isolated from beaked whales (Ziphius cavirostris)

2007 ◽  
Vol 57 (11) ◽  
pp. 2604-2608 ◽  
Author(s):  
A. I. Vela ◽  
A. Fernandez ◽  
C. Sánchez-Porro ◽  
E. Sierra ◽  
M. Mendez ◽  
...  

Three isolates of a Gram-negative, catalase- and oxidase-positive, rod-shaped bacterium, isolated from the lung and liver of two beaked whales, were characterized by phenotypic and molecular genetic methods. Based on cellular morphology and biochemical criteria, the isolates were tentatively assigned to the family Flavobacteriaceae, although they did not appear to correspond to any recognized species. Comparative 16S rRNA gene sequencing showed that the three new isolates shared 100 % sequence similarity. The unknown bacterium was phylogenetically closely related to, but distinct from the type strains of Flavobacterium johnsoniae (93.7 % sequence similarity), Flavobacterium frigidimaris (93.4 %), Flavobacterium aquidurense (93.4 %), Flavobacterium hibernum (93.4 %) and Flavobacterium degerlachei (93.4 %). The novel isolates were readily distinguished from these and other related Flavobacterium species by physiological and biochemical tests. On the basis of phenotypic and phylogenetic evidence, it is proposed that the unknown isolates from whales are classified as a novel species of the genus Flavobacterium, Flavobacterium ceti sp. nov. The type strain is 454-2T (=CECT 7184T =CCUG 52969T).

2006 ◽  
Vol 56 (11) ◽  
pp. 2671-2676 ◽  
Author(s):  
Ana I. Vela ◽  
María C. Gutiérrez ◽  
Enevold Falsen ◽  
Eduardo Rollán ◽  
Isabel Simarro ◽  
...  

An unusual Gram-negative, catalase- and oxidase-positive, rod-shaped bacterium isolated from different clinical samples from two monkeys (Callithrix geoffroyi) was characterized by phenotypic and molecular genetic methods. The micro-organism was tentatively identified as a Pseudomonas species on the basis of the results of cellular morphological and biochemical tests. Fatty acid studies confirmed this generic placement and comparative 16S rRNA gene sequencing studies demonstrated that the unknown isolates were phylogenetically closely related to each other (100 % sequence similarity) and were part of the ‘Pseudomonas fluorescens intrageneric cluster’. The novel bacterium, however, was distinguished from other phylogenetically related species of Pseudomonas by DNA–DNA hybridization studies and biochemical tests. On the basis of both phenotypic and phylogenetic findings, it is proposed that the novel Pseudomonas isolates are classified as Pseudomonas simiae sp. nov. The type strain of P. simiae is OLiT (=CCUG 50988T=CECT 7078T).


2019 ◽  
Vol 69 (4) ◽  
pp. 1142-1148 ◽  
Author(s):  
Nisha B. Patel ◽  
Alexandra J. Obregón-Tito ◽  
Raul Y. Tito ◽  
Omar Trujillo-Villaroel ◽  
Luis Marin-Reyes ◽  
...  

A novel Gram-stain-positive, non-motile, non-spore-forming coccus-shaped obligately anaerobic bacterium was recovered from a fecal sample obtained from an individual from a traditional community located on the southern coast of Peru. The results of analysis based on 16S rRNA gene sequencing indicated the novel bacterium to be phylogenetically distinct from other genera of members of the Peptoniphilaceae family, sharing a loose affinity with the genera Ezakiella , Finegoldia , Gallicola and Parvimonas . The major cellular fatty acids of the novel isolate were determined to be C16:0, C17:1ω8c, and C18:1ω9c. The DNA G+C content was 29.9 mol%. End products of metabolism from peptone yeast glucose broth (PYG) were determined to be acetate and methyl succinate. The diagnostic diamino acid present in the cell wall was lysine. On the basis of the phenotypic, chemotaxonomic and phylogenetic results the organism is a member of a novel genus belonging to the family Peptoniphilaceae for which the name Citroniella saccharovorans gen nov. sp. nov., is proposed. The type strain is M6.X9T (DSM 29873T=CCUG 66799T).


2010 ◽  
Vol 60 (9) ◽  
pp. 2170-2175 ◽  
Author(s):  
Kwang Kyu Kim ◽  
Jung-Sook Lee ◽  
Keun Chul Lee ◽  
Hee-Mock Oh ◽  
Song-Gun Kim

The alphaproteobacterial strains GRP21T and PH34, which were isolated from coastal sediment of the East Sea, Korea, were subjected to a polyphasic taxonomic investigation. The strains were Gram-negative, non-motile, non-spore-forming, oval-shaped rods that produced creamy-white colonies on tryptic soy agar, required NaCl for growth, contained Q-10 as the predominant ubiquinone, contained 16 : 0, 18 : 1ω7c and 19 : 0 cyclo ω8c as major fatty acids and had polar lipid profiles consisting of phosphatidylcholine, phosphatidylglycerol, an unknown aminolipid, an unknown phospholipid and three unknown lipids. Phylogenetic analysis, based on 16S rRNA gene sequencing, showed that the strains were most closely related to Donghicola eburneus KCTC 12735T, with 94.5 % sequence similarity, but formed a separate lineage within the family Rhodobacteraceae. The combined genotypic and phenotypic data supported the conclusion that the strains represent a novel genus and species, for which the name Pontibaca methylaminivorans gen. nov., sp. nov. is proposed. The type strain of Pontibaca methylaminivorans is GRP21T (=KCTC 22497T =DSM 21219T).


2007 ◽  
Vol 57 (4) ◽  
pp. 687-691 ◽  
Author(s):  
Ying-Shun Cui ◽  
Wan-Taek Im ◽  
Cheng-Ri Yin ◽  
Jung-Sook Lee ◽  
Keun Chul Lee ◽  
...  

A Gram-positive, rod-shaped, non-spore-forming and strictly aerobic bacterium (Gsoil 161T) was isolated from soil of a ginseng field in Pocheon Province, South Korea. The novel isolate was characterized using a polyphasic approach in order to determine its taxonomic position. On the basis of 16S rRNA gene sequence similarity, strain Gsoil 161T was shown to belong to the family Nocardioidaceae and was related to Aeromicrobium marinum (98.0 % similarity to the type strain), Aeromicrobium alkaliterrae (97.6 %), Aeromicrobium fastidiosum (97.0 %) and Aeromicrobium erythreum (96.7 %); the sequence similarity with other species within the family was less than 94.4 %. It was characterized chemotaxonomically as having ll-2,6-diaminopimelic acid in the cell-wall peptidoglycan, MK-9(H4) as the predominant menaquinone and C16 : 0, 10-methyl C18 : 0 (tuberculostearic acid), C16 : 0 2-OH, 10-methyl C17 : 0 and 10-methyl-C16 : 0 as the major fatty acids. The G+C content of the genomic DNA was 65.5 mol%. These chemotaxonomic properties and phenotypic characteristics support the affiliation of strain Gsoil 161T to the genus Aeromicrobium. Results of physiological and biochemical tests enabled strain Gsoil 161T to be differentiated genotypically and phenotypically from currently known Aeromicrobium species. Therefore, strain Gsoil 161T represents a novel species, for which the name Aeromicrobium panaciterrae sp. nov. is proposed. The type strain is strain Gsoil 161T (=KCTC 19131T=DSM 17939T=CCUG 52476T).


Author(s):  
Noriko Shinozaki-Kuwahara ◽  
Kazuko Takada ◽  
Masatomo Hirasawa

Three Gram-positive, catalase-negative, coccus-shaped organisms were isolated from the oral cavities of bears. The isolates were tentatively identified as a streptococcal species based on the results of biochemical tests. Comparative 16S rRNA gene sequencing studies confirmed that the organisms were members of the genus Streptococcus, but they did not correspond to any recognized species of the genus. The nearest phylogenetic relative of the new isolates was Streptococcus ratti ATCC 19645T (98.6 %), however, DNA–DNA hybridization analysis showed that the isolates displayed less than 15 % DNA–DNA relatedness with the type strain of S. ratti. Colonies of the novel strains grown on mitis salivarius agar showed an extracellular polysaccharide-producing colony morphology. Based on phenotypic and phylogenetic evidence, it is proposed that the novel isolates are classified in the genus Streptococcus as Streptococcus ursoris sp. nov. The type strain of S. ursoris is NUM 1615T (=JCM 16316T=DSM 22768T).


Author(s):  
P. Kämpfer ◽  
N. Lodders ◽  
E. Falsen

Three bacterial strains, designated CCUG 51397T, CCUG 53736 and CCUG 53920, isolated from water samples taken at different locations in southern Sweden were studied to determine their taxonomic position using a polyphasic approach. Comparative analysis of 16S rRNA gene sequences showed that these bacteria had <93 % sequence similarity to all described species of the genera Sediminibacterium, Lacibacter, Flavihumibacter, Flavisolibacter, Niabella, Niastella, Segetibacter, Parasegetibacter, Terrimonas, Ferruginibacter, Filimonas and Chitinophaga. The three organisms grouped most closely with Sediminibacterium salmoneum NJ-44T but showed only 92.5 % sequence similarity to this strain, the only recognized species of this genus. The fatty acid profiles showed large amounts of iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G with smaller amounts of iso-C15 : 0 3-OH, iso-C16 : 0 3-OH and other fatty acids, which differentiated the novel strains from related genera. Biochemical tests performed on strains CCUG 51397T, CCUG 53736 and CCUG 53920 also gave different results from those of Sediminibacterium salmoneum NJ-44T and other related genera. Based on this evidence, strains CCUG 51397T, CCUG 53736 and CCUG 53920 represent a novel species of a new genus, for which the name Hydrotalea flava gen. nov., sp. nov. is proposed. The type strain of Hydrotalea flava is CCUG 51397T (=CCM 7760T). A formal allocation of the genera Sediminibacterium, Lacibacter, Flavihumibacter, Flavisolibacter, Niabella, Niastella, Segetibacter, Parasegetibacter, Terrimonas, Ferruginibacter, Filimonas and Chitinophaga to the family Chitinophagaceae fam. nov. is also proposed.


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1486-1490 ◽  
Author(s):  
Dominique Clermont ◽  
Laurence Motreff ◽  
Virginie Passet ◽  
José-Carlos Fernandez ◽  
Chantal Bizet ◽  
...  

Strains originating from various sources and classified as members of the genus Citrobacter within the family Enterobacteriaceae were characterized by sequencing internal portions of genes rpoB, fusA, pyrG and leuS, 16S rRNA gene sequencing, average nucleotide identity (ANI) of genomic sequences and biochemical tests. Phylogenetic analysis based on the four housekeeping genes showed that the 11 species of the genus Citrobacter with validly published names are well demarcated. Strains CIP 55.13T and CIP 55.9 formed a distinct branch associated with Citrobacter youngae . The ANI between CIP 55.9 and CIP 55.13T was 99.19 %, whereas it was 94.75 % between CIP 55.13T and strain CIP 105016T of the species C. youngae , the most closely related species. Biochemical characteristics consolidated the fact that the two isolates represent a separate species, for which the name Citrobacter pasteurii sp. nov. is proposed. The type strain is CIP 55.13T ( = DSM 28879T = Na 1aT).


2011 ◽  
Vol 61 (2) ◽  
pp. 369-374 ◽  
Author(s):  
Keun Chul Lee ◽  
Kwang Kyu Kim ◽  
Mi Kyung Eom ◽  
Mi Jeong Kim ◽  
Jung-Sook Lee

A facultatively anaerobic, endospore-forming bacterium, designated strain P11-6T, was isolated from soil of a ginseng field located in Geumsan County, Republic of Korea. Cells of strain P11-6T were Gram-stain-negative, catalase-negative, motile rods and produced semi-translucent, circular, white colonies on tryptic soy agar. The isolate contained MK-7 as the only menaquinone and anteiso-C15 : 0 as the major fatty acid. Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, an unknown aminophosphoglycolipid, an unknown aminophospholipid, two unknown phospholipids, three unknown glycolipids and three unknown lipids were detected in the polar lipid profile. The DNA G+C content of strain P11-6T was 41.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequencing showed that strain P11-6T was most closely related to Fontibacillus aquaticus GPTSA 19T (97.2 % sequence similarity) and that it formed a separate lineage with F. aquaticus in the family Paenibacillaceae. Combined phenotypic and DNA–DNA hybridization data supported the conclusion that strain P11-6T represents a novel species in the genus Fontibacillus, for which the name Fontibacillus panacisegetis sp. nov. is proposed; the type strain is P11-6T (=KCTC 13564T =CECT 7605T).


2006 ◽  
Vol 56 (11) ◽  
pp. 2529-2533 ◽  
Author(s):  
Ho-Bin Kim ◽  
Min-Ju Park ◽  
Hee-Chan Yang ◽  
Dong-Shan An ◽  
Hai-Zhu Jin ◽  
...  

A bacterial strain (designated KMY03T) that possesses β-glucosidase activity was isolated from soil from a ginseng field in South Korea and was characterized in order to determine its taxonomic position. The bacterium was found to comprise Gram-negative, rod-shaped, motile cells with unipolar polytrichous flagella. On the basis of 16S rRNA gene sequence similarity, strain KMY03T was shown to belong to the family Burkholderiaceae of the Betaproteobacteria, being most closely related to Burkholderia caledonica LMG 19076T (97.8 %), Burkholderia terricola LMG 20594T (97.5 %), Burkholderia xenovorans LMG 21463T (97.4 %) and Burkholderia phytofirmans LMG 22146T (97.3 %). Chemotaxonomic data (major ubiquinone, Q-8; major fatty acids, C17 : 0 cyclo, C16 : 0, C19 : 0 cyclo ω8c and summed feature 2) supported the affiliation of the novel strain with the genus Burkholderia. The results of DNA–DNA hybridizations and physiological and biochemical tests allowed the strain to be differentiated genotypically and phenotypically from Burkholderia species with validly published names. On the basis of these data, strain KMY03T represents a novel species of the genus Burkholderia, for which the name Burkholderia ginsengisoli sp. nov. is proposed. The type strain is KMY03T (=KCTC 12389T=NBRC 100965T).


2007 ◽  
Vol 57 (6) ◽  
pp. 1291-1294 ◽  
Author(s):  
A. I. Vela ◽  
N. García ◽  
M. V. Latre ◽  
A. Casamayor ◽  
C. Sánchez-Porro ◽  
...  

Biochemical and molecular genetic studies were performed for five isolates of unknown Gram-positive, catalase-negative, cocci-shaped micro-organisms obtained from clinical samples from pigs. The micro-organisms were tentatively identified as Aerococcus species on the basis of the results from cellular morphological and biochemical tests. 16S rRNA gene sequencing studies confirmed the provisional identification of the isolates as members of the genus Aerococcus, but the micro-organism did not correspond to any recognized species of this genus. The nearest phylogenetic relatives of these unknown cocci isolated from pigs were Aerococcus viridans (95.9 % 16S rRNA gene sequence similarity) and Aerococcus urinaeequi (95.8 %). The unknown bacterium, however, was distinguishable from these two species and from other animal aerococci by using biochemical tests. On the basis of both phenotypic and phylogenetic findings, the isolates represent a novel species of the genus Aerococcus, for which the name Aerococcus suis sp. nov. is proposed. The type strain is 1821/02T (=CECT 7139T=CCUG 52530T).


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