scholarly journals Mucilaginibacter paludis gen. nov., sp. nov. and Mucilaginibacter gracilis sp. nov., pectin-, xylan- and laminarin-degrading members of the family Sphingobacteriaceae from acidic Sphagnum peat bog

2007 ◽  
Vol 57 (10) ◽  
pp. 2349-2354 ◽  
Author(s):  
Timofei A. Pankratov ◽  
Brian J. Tindall ◽  
Werner Liesack ◽  
Svetlana N. Dedysh

Two facultatively aerobic, heterotrophic bacteria capable of degrading pectin, xylan, laminarin and some other polysaccharides were obtained from the acidic Sphagnum peat bog Bakchar, in western Siberia, Russia, and were designated strains TPT18T and TPT56T. Cells of these isolates are Gram-negative, non-motile, long rods that are covered by large capsules. On ageing, they transform into spherical L-forms. Strains TPT18T and TPT56T are acido- and psychrotolerant organisms capable of growth at pH 4.2–8.2 (with an optimum at pH 6.0–6.5) and at 2–33 °C (with an optimum at 20 °C). The major fatty acids are iso-C15 : 0, anteiso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1 ω7c); the quinones are MK-7 and MK-6. Comparative 16S rRNA gene sequence analysis revealed that the novel strains share 97 % sequence similarity and belong to the family Sphingobacteriaceae; however, they are related only distantly to members of the genera Pedobacter (91.8–93.3 % similarity) and Sphingobacterium (89.6–91.2 % similarity). The DNA G+C content of strains TPT18T and TPT56T is 42.4 and 46.1 mol%, respectively. The low DNA–DNA hybridization value (42 %) and a number of phenotypic differences between strains TPT18T and TPT56T indicated that they represent two separate species. Since the two isolates are clearly distinct from all currently described members of the family Sphingobacteriaceae, we propose a novel genus, Mucilaginibacter gen. nov., containing two novel species, Mucilaginibacter gracilis sp. nov. and Mucilaginibacter paludis sp. nov. The type strains of Mucilaginibacter gracilis and Mucilaginibacter paludis are respectively TPT18T (=ATCC BAA-1391T =VKM B-2447T) and TPT56T (=ATCC BAA-1394T =VKM B-2446T).

2004 ◽  
Vol 54 (4) ◽  
pp. 1017-1023 ◽  
Author(s):  
Olga I. Nedashkovskaya ◽  
Seung Bum Kim ◽  
Suk Kyun Han ◽  
Anatoly M. Lysenko ◽  
Manfred Rohde ◽  
...  

Six novel gliding, heterotrophic, Gram-negative, yellow-pigmented, aerobic, oxidase- and catalase-positive bacteria were isolated from the green alga Ulva fenestrata, sea water and a bottom sediment sample collected in the Gulf of Peter the Great, Sea of Japan. 16S rRNA gene sequence analysis revealed that the strains studied were members of the family Flavobacteriaceae. On the basis of their phenotypic, chemotaxonomic, genotypic and phylogenetic characteristics, the novel bacteria have been assigned to the new genus Maribacter gen. nov., as Maribacter sedimenticola sp. nov., Maribacter orientalis sp. nov., Maribacter aquivivus sp. nov. and Maribacter ulvicola sp. nov., with the type strains KMM 3903T (=KCTC 12966T=CCUG 47098T), KMM 3947T (=KCTC 12967T=CCUG 48008T), KMM 3949T (=KCTC 12968T=CCUG 48009T) and KMM 3951T (=KCTC 12969T=DSM 15366T), respectively.


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 501-505 ◽  
Author(s):  
Jonathan Kennedy ◽  
Lekha Menon Margassery ◽  
Niall D. O’Leary ◽  
Fergal O’Gara ◽  
John Morrissey ◽  
...  

A Gram-stain-negative, rod-shaped, orange-coloured, catalase- and oxidase-positive, non-motile bacterium, designated strain 92VT, was isolated from the marine sponge Amphilectus fucorum, collected from Lough Hyne, County Cork, Ireland. 16S rRNA gene sequence analysis revealed that strain 92VT clustered with members of the family Flavobacteriaceae , the closest member being Aquimarina latercula NCIMB 1399T, with a gene sequence similarity of 97.5 %. Strain 92VT required seawater for growth with optimal growth occurring at 25 °C, at pH 6–7 and with 3 % (w/v) NaCl. MK-6 was the sole respiratory quinone present and the major fatty acids were iso-C17 : 0 3-OH, iso-C15 : 0, iso-C17 : 1ω9c and iso-C15 : 0 3-OH. The DNA G+C content was 36.1 mol%. Combined phenotypic differences and phylogenetic analysis indicate that strain 92VT represents a novel species of the genus Aquimarina , for which the name Aquimarina amphilecti sp. nov. is proposed. The type strain is 92VT ( = NCIMB 14723T = DSM 25232T).


2006 ◽  
Vol 56 (10) ◽  
pp. 2391-2396 ◽  
Author(s):  
Soon Dong Lee

A novel actinomycete, strain KST3-10T, was isolated from sand sediment of a beach in Jeju, Korea, and was subjected to polyphasic taxonomic characterization. The organism produced circular, smooth, translucent, apricot-coloured colonies comprising coccoid- or rod-shaped cells. Phylogenetic analyses based on 16S rRNA gene sequences showed that the organism belonged to the family Geodermatophilaceae and consistently formed a distinct sub-branch outside the radiation of the genus Blastococcus. The organism showed 16S rRNA gene sequence similarity values of 98.2 % with respect to Blastococcus aggregatus DSM 4725T and 98.1 % with respect to Blastococcus saxobsidens BC444T. The type strains of the two Blastococcus species shared 98.2 % sequence similarity with respect to each other, whereas the levels of sequence similarity between the novel organism and the type strains of the less closely related neighbours, Modestobacter multiseptatus and Geodermatophilus obscurus, were in the range 96.2–96.9 %. The physiological, biochemical and chemotaxonomic data revealed that the novel organism can be readily differentiated from members of the genus Blastococcus and that it merits separate species status. On the basis of the phenotypic and genotypic evidence, strain KST3-10T represents a novel species of the genus Blastococcus, for which the name Blastococcus jejuensis sp. nov. is proposed. The type strain is KST3-10T (=NRRL B-24440T=KCCM 42251T).


2011 ◽  
Vol 61 (1) ◽  
pp. 165-169 ◽  
Author(s):  
Yuchang Liu ◽  
Fanglan Ge ◽  
Guiying Chen ◽  
Wei Li ◽  
Pingmei Ma ◽  
...  

A cholesterol side-chain-cleaving bacterial strain, AD-6T, was isolated from fresh faeces of a clouded leopard (Neofelis nebulosa) and was studied using a polyphasic taxonomic approach. 16S rRNA gene sequence analysis showed that the novel strain formed a distinct subline within the genus Gordonia, its closest neighbours being the type strains of Gordonia cholesterolivorans, Gordonia sihwensis and Gordonia hydrophobica, with sequence similarity values of 98.2, 97.8 and 97.6 %, respectively. The gyrB gene sequence of strain AD-6T exhibited similarities of 77–91 % with those of the type strains of recognized species of the genus Gordonia, being most similar to the type strains of G. sihwensis, G. hydrophobica and Gordonia hirsuta (91, 87 and 84 % similarity, respectively). The results of whole-cell fatty acid analyses and DNA–DNA relatedness data readily distinguished the new isolate from its nearest neighbours. Strain AD-6T is therefore considered to represent a novel species of the genus Gordonia, for which the name Gordonia neofelifaecis sp. nov. is proposed. The type strain is AD-6T (=NRRL B-59395T=CCTCC AB-209144T).


2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 591-595 ◽  
Author(s):  
Sang-Hee Lee ◽  
Qing-Mei Liu ◽  
Sung-Taik Lee ◽  
Sun-Chang Kim ◽  
Wan-Taek Im

A Gram-reaction-positive, rod-shaped, non-motile, non-spore-forming bacterium (strain BX5-10T) was isolated from the soil of a ginseng field on Baekdu Mountain in Jilin district, China. The taxonomic position of this bacterium was determined in an investigation based on a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain BX5-10T was shown to belong to the family Nocardioidaceae and to be most closely related to Nocardioides plantarum NCIMB 12834T (96.5 % sequence similarity), Nocardioides dokdonensis KCTC 19309T (96.2 %) and Nocardioides fonticola NAA-13T (95.1 %). Strain BX5-10T was characterized chemotaxonomically as having ll-2,6-diaminopimelic acid in its cell-wall peptidoglycan, MK-8(H4) as the predominant menaquinone and C18 : 1ω9c, C16 : 0 and C17 : 1ω8c as its major fatty acids. The G+C content of the genomic DNA was 70.3 mol%. The novel strain could be differentiated genotypically and phenotypically from all recognized species of the genus Nocardioides. Based on the results of the phylogenetic analyses and the genotypic and phenotypic data, a novel species, Nocardioides ginsengagri sp. nov., is proposed. The type strain is BX5-10T ( = KCTC 19467T = DSM 21362T).


2010 ◽  
Vol 60 (10) ◽  
pp. 2358-2363 ◽  
Author(s):  
Sathiyaraj Srinivasan ◽  
Myung Kyum Kim ◽  
Gayathri Sathiyaraj ◽  
Vaidyanathan Veena ◽  
Muthusamy Mahalakshmi ◽  
...  

A Gram-negative, rod-shaped, motile bacterium was isolated from the soil of a ginseng field in Daejeon, South Korea, and characterized in order to determine its taxonomic position. Phylogenetic analysis based on 16S rRNA gene sequence analysis revealed that strain DCY34T belonged to the family Sphingomonadaceae, and the highest degree of sequence similarity was found with Sphingopyxis witflariensis W-50T (97.1 %), Sphingopyxis ginsengisoli Gsoil 250T (97.0 %), Sphingopyxis chilensis S37T (96.9 %), Sphingopyxis macrogoltabida IFO 15033T (96.8 %), Sphingopyxis alaskensis RB2256T (96.7 %) and Sphingopyxis taejonensis JSS54T (96.7 %). Chemotaxonomic data revealed that strain DCY34T possessed ubiquinone Q-10 as the predominant respiratory lipoquinone, which is common to members of the genus Sphingopyxis. The predominant fatty acids were C18 : 1 ω7c (27.5 %), summed feature 4 (C16 : 1 ω7c and/or C15 : 0 iso 2-OH; 18.6 %), C16 : 0 (15.6 %) and summed feature 8 (C19 : 1 ω6c and/or unknown 18.864; 15.4 %). The major polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, sphingoglycolipid and an unknown polar lipid. The results of physiological and biochemical tests clearly demonstrated that strain DCY34T represented a separate species and supported its affiliation to the genus Sphingopyxis. Based on these data, the new isolate represents a novel species, for which the name Sphingopyxis panaciterrulae sp. nov. is proposed. The type strain is DCY34T (=KCTC 22112T=JCM 14844T).


2007 ◽  
Vol 57 (6) ◽  
pp. 1346-1350 ◽  
Author(s):  
Jui-Hsing Chou ◽  
Yi-Ju Chou ◽  
Kuan-Yin Lin ◽  
Shih-Yi Sheu ◽  
Der-Shyan Sheu ◽  
...  

A novel bacterial strain, designated ZLT, isolated from a warm spring in Jhonglun, Taiwan, was characterized by using a polyphasic taxonomic approach. The novel strain had chemotaxonomic and morphological properties consistent with its classification in the genus Paenibacillus. Cells were Gram-variable, aerobic, sporulating, motile rods. 16S rRNA gene sequence analysis demonstrated that this novel isolate was unique, showing 94.3 % sequence similarity to Paenibacillus assamensis GPTSA 11T and lower levels to Paenibacillus timonensis 2301032T (94.0 %), Paenibacillus macerans ATCC 8244T (93.3 %), Paenibacillus barengoltzii SAFN-016T (93.3 %) and Paenibacillus sanguinis 2301083T (93.2 %). The novel isolate could be distinguished from the type strains of all of these species based on a range of phenotypic data. The major cellular phospholipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and one unknown phosphoglycolipid. The predominant isoprenologue was an unsaturated menaquinone with seven isoprene units (MK-7). The major fatty acids of strain ZLT were C16 : 0 (33.5 %), anteiso-C15 : 0 (32.5 %) and iso-C16 : 0 (9.3 %). The G+C content of the genomic DNA was 49.2 mol%. It is evident from the genotypic and phenotypic data that strain ZLT should be classified as representing a novel species of the genus Paenibacillus, for which the name Paenibacillus fonticola sp. nov. is proposed. The type strain is ZLT (=BCRC 17579T=LMG 23577T).


2007 ◽  
Vol 57 (11) ◽  
pp. 2655-2659 ◽  
Author(s):  
Olga I. Nedashkovskaya ◽  
Seung Bum Kim ◽  
Anatoly M. Lysenko ◽  
Kang Hyun Lee ◽  
Kyung Sook Bae ◽  
...  

Two marine, heterotrophic, aerobic, pigmented and gliding bacteria, isolated from the sea urchin Strongylocentrotus intermedius were subjected to a polyphasic taxonomy study. The 16S rRNA gene sequence analysis revealed that strains KMM 6032T and KMM 6047 formed a distinct branch within the genus Arenibacter, a member of the family Flavobacteriaceae. The level of sequence similarity between the novel isolates and members of the genus Arenibacter was 94.5–98.9 %. The DNA G+C content was 39–40 mol%. The dominant fatty acids were iso-C15 : 1, iso-C15 : 0, C15 : 0, C15 : 1 ω6c, iso-C15 : 0 3-OH, iso-C17 : 1 ω9c, iso-C17 : 0 3-OH and summed feature 3 (comprising iso-C15 : 0 2-OH and/or C16 : 1 ω7c). The results of DNA–DNA hybridization experiments supported by phenotypic data indicated that the isolates represent a novel species within the genus Arenibacter, for which the name Arenibacter echinorum sp. nov. is proposed. The type strain is KMM 6032T (=KCTC 22013T=LMG 22574T).


2010 ◽  
Vol 60 (9) ◽  
pp. 2066-2070 ◽  
Author(s):  
Peter Kämpfer ◽  
Chiu-Chung Young ◽  
Wen-Ming Chen ◽  
P. D. Rekha ◽  
Kerstin Fallschissel ◽  
...  

The taxonomic position of a bright orange-pigmented bacterial strain, designated CC-GZM-130T, isolated from a water sample of the Guan-zing-ling hot spring, southern Taiwan, was studied. The strain was able to grow on nutrient agar at 25–40 °C and in the presence of 1–3 % (w/v) NaCl. Comparative analyses of the 16S rRNA gene sequence showed that the isolate was grouped in the vicinity of the genus Aquiflexum with the highest sequence similarity of 92.1 % to the type strain of Aquiflexum balticum, followed by sequence similarities of 92.0, 91.6 and 91.5 % to the type strains of Algoriphagus ornithinivorans, Algoriphagus hitonicola and Belliella baltica, respectively. The polyamine pattern showed that the major compound was sym-homospermidine. The quinone system was menaquinone MK-7. The polar lipid profile was composed predominantly of phosphatidylethanolamine, three polar lipids and one aminolipid. Minor amounts of other lipids were also detectable. The main characteristics of the fatty acid profiles of strain CC-GZM-130T, B. baltica and Aquiflexum balticum were similar, with iso-C15 : 0, iso-C17 : 1 ω9c and iso-C17 : 0 3-OH as the major fatty acids, but some qualitative and quantitative differences were observed. The DNA G+C content of the novel strain was 53.2 mol%. The isolate clearly differed genotypically and phenotypically from representatives of the most closely related genera. On the basis of these differences, a novel species in a new genus, Fontibacter flavus gen. nov., sp. nov., is proposed with CC-GZM-130T (=CCUG 57694T=CCM 7650T) as the type strain of the type species.


2010 ◽  
Vol 60 (6) ◽  
pp. 1401-1406 ◽  
Author(s):  
Yeon-Ju Kim ◽  
Myung Kyum Kim ◽  
Wan-Taek Im ◽  
Sathiyaraj Srinivasan ◽  
Deok-Chun Yang

A novel betaproteobacterium, designated strain Ch07T, was isolated from granules from the wastewater-treatment bioreactor of an alcohol fermentation factory in South Korea. In order to determine its taxonomic position, the novel strain was characterized using a polyphasic approach. The new strain was Gram-negative, facultatively anaerobic, non-spore-forming, motile and short rod-shaped. 16S rRNA gene sequence analysis revealed that strain Ch07T belonged to the class Betaproteobacteria, being related to Pusillimonas noertemannii BN9T (gene sequence similarity 97.30 %), Achromobacter xylosoxidans subsp. xylosoxidans DSM 10346T (97.09 %), Bordetella pertussis DSM 5571T (97.01 %), Pigmentiphaga kullae DSM 13608T (96.68 %) and Castellaniella defragrans DSM 1214T (96.47 %). The results of DNA–DNA hybridization tests showed that reassociation values were less than 62 % with respect to these closely related type strains. Chemotaxonomic data showed that strain Ch07T possessed ubiquinone Q-8. The G+C content of the genomic DNA was 67.9±0.1 mol%. The major polyamine of strain Ch07T was putrescine. The major polar lipids of strain Ch07T were phosphatidylethanolamine, followed by diphosphatidylglycerol and phosphatidylglycerol. When strain Ch07T was incubated on tryptic soy agar, the major cellular fatty acids were C16 : 0, C17 : 0 cyclo, summed feature 3 (C16 : 1 ω7c/iso C15 : 0 2-OH) and summed feature 5 (C18 : 1 ω7c/ω9t/ω12t). The results of DNA–DNA hybridizations, in combination with the chemotaxonomic and physiological data, demonstrated that strain Ch07T represents a novel species of a new genus, for which the name Parapusillimonas granuli gen. nov., sp. nov. is proposed. The type strain of the type species is Ch07T (=KCTC 12668T=LMG 24012T).


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