scholarly journals Stenotrophomonas terrae sp. nov. and Stenotrophomonas humi sp. nov., two nitrate-reducing bacteria isolated from soil

2007 ◽  
Vol 57 (9) ◽  
pp. 2056-2061 ◽  
Author(s):  
Kim Heylen ◽  
Bram Vanparys ◽  
Filip Peirsegaele ◽  
Liesbeth Lebbe ◽  
Paul De Vos

Three Gram-negative, rod-shaped, non-spore-forming, nitrate-reducing isolates (R-32746, R-32768T and R-32729T) were obtained from soil. Analysis of repetitive sequence-based PCR showed that the three isolates represented two different strains. 16S rRNA gene sequence analysis and DNA–DNA hybridization placed them within the genus Stenotrophomonas and revealed that they were genotypically different from each other and from all recognized Stenotrophomonas species. Analysis of the fatty acid composition and physiological and biochemical tests allowed differentiation from their closest phylogenetic neighbours. They are therefore considered to represent two novel species, for which the names Stenotrophomonas terrae sp. nov. and Stenotrophomonas humi sp. nov. are proposed, with strains R-32768T (=LMG 23958T=DSM 18941T) and R-32729T (=LMG 23959T=DSM 18929T), respectively, as the type strains.

2006 ◽  
Vol 56 (8) ◽  
pp. 1875-1881 ◽  
Author(s):  
Bram Vanparys ◽  
Kim Heylen ◽  
Liesbeth Lebbe ◽  
Paul De Vos

Sixteen Gram-negative, rod-shaped, non-spore-forming isolates were obtained from a nitrifying inoculum. Analysis of repetitive sequence-based PCR and SDS-PAGE banding patterns, 16S rRNA gene sequence analysis and DNA–DNA hybridizations showed that the isolates belonged to various groups within the genus Pseudomonas. One group of isolates could be assigned to Pseudomonas migulae and a second to Pseudomonas veronii. Two groups could be differentiated genotypically from each other and from all other currently known Pseudomonas species. Analysis of the fatty acid composition and physiological and biochemical tests allowed differentiation of these groups from their closest phylogenetic neighbours and they therefore represent two novel species within the genus Pseudomonas, for which the names Pseudomonas peli sp. nov. and Pseudomonas borbori sp. nov. are proposed, with strains LMG 23201T (=DSM 17833T=R-20805T) and LMG 23199T (=DSM 17834T=R-20821T), respectively, as the type strains.


2010 ◽  
Vol 60 (4) ◽  
pp. 824-827 ◽  
Author(s):  
P. Kämpfer ◽  
Chiu-Chung Young ◽  
H.-J. Busse ◽  
Jiunn-Nan Chu ◽  
P. Schumann ◽  
...  

A Gram-stain-positive, coccoid, non-endospore-forming actinobacterium (strain CC-12602T) was isolated from a spawn used for growing the edible mushroom Agaricus brasiliensis in the laboratory. On the basis of 16S rRNA gene sequence analysis, strain CC-12602T was shown to belong to the genus Microlunatus and was related most closely to the type strains of Microlunatus ginsengisoli (96.1 % similarity), M. phosphovorus (95.9 %), M. panaciterrae (95.8 %) and M. aurantiacus (95.5 %). The quinone system comprised menaquinone MK-9(H4) as the major component and the polyamine pattern consisted of spermidine and spermine as major compounds. The predominant polar lipids were phosphatidylglycerol and unknown phospholipid PL3. Moderate amounts of diphosphatidylglycerol, an unknown glycolipid and three unknown phospholipids and minor amounts of an unknown phospholipid and a polar lipid were detected. The peptidoglycan type was A3γ′, based on ll-2,6-diaminopimelic acid with an interpeptide bridge consisting of a single glycine residue and a second glycine residue at position 1 of the peptide subunit. Peptidoglycan structure and major fatty acids (anteiso-C15 : 0, iso-C16 : 0 and iso-C15 : 0) supported the affiliation of strain CC-12602T to the genus Microlunatus. The results of physiological and biochemical tests allowed strain CC-12602T to be differentiated phenotypically from recognized Microlunatus species. Strain CC-12602T is therefore considered to represent a novel species of the genus Microlunatus, for which the name Microlunatus soli sp. nov. is proposed. The type strain is CC-12602T (=DSM 21800T =CCM 7685T).


2011 ◽  
Vol 61 (2) ◽  
pp. 275-280 ◽  
Author(s):  
P. Kämpfer ◽  
A. B. Arun ◽  
H.-J. Busse ◽  
S. Langer ◽  
C.-C. Young ◽  
...  

A Gram-positive bacterium (strain CC-YMP-6T) was isolated from soil samples collected from Yang-Ming Mountain, Taiwan. On the basis of 16S rRNA gene sequence analysis, strain CC-YMP-6T clearly belonged to the genus Virgibacillus and was most closely related to the type strains of Virgibacillus halophilus (96.2 % similarity) and Virgibacillus kekensis (96.3 %). The predominant isoprenoid quinone was menaquinone MK-7 and the polar lipid profile was composed of the major components diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and one unidentified phospholipid plus moderate amounts of two unidentified aminophospholipids and a phospholipid. The polyamine pattern comprised spermidine as the single major component with spermine and putrescine present in minor amounts. The major fatty acids of strain CC-YMP-6T were iso-C15 : 0 and anteiso-C15 : 0. The results of physiological and biochemical tests allowed the clear phenotypic differentiation of strain CC-YMP-6T from all recognized species of the genus Virgibacillus. Strain CC-YMP-6T is therefore considered to represent a novel species of the genus Virgibacillus, for which the name Virgibacillus soli sp. nov. is proposed. The type strain is CC-YMP-6T (=DSM 22952T=CCM 7714T).


2011 ◽  
Vol 61 (4) ◽  
pp. 979-984 ◽  
Author(s):  
Lars Ganzert ◽  
Felizitas Bajerski ◽  
Kai Mangelsdorf ◽  
André Lipski ◽  
Dirk Wagner

Two novel cold-tolerant, Gram-stain-positive, motile, facultatively anaerobic bacterial strains, LI2T and LI3T, were isolated from moss-covered soil from Livingston Island, Antarctica, near the Bulgarian station St Kliment Ohridski. A rod–coccus cycle was observed for both strains. 16S rRNA gene sequence analysis revealed an affiliation to the genus Arthrobacter, with the highest similarity to Arthrobacter stackebrandtii and Arthrobacter psychrochitiniphilus for strain LI2T (97.8 and 97.7 % similarity to the respective type strains) and to Arthrobacter kerguelensis and Arthrobacter psychrophenolicus for strain LI3T (97.4 and 97.3 % similarity to the respective type strains). The growth temperature range was −6 to 28 °C for LI2T and −6 to 24 °C for LI3T, with an optimum at 16 °C for both strains. Growth occurred at 0–10 % (w/v) NaCl, with optimum growth at 0–1 % (w/v) for LI2T and 0.5–3 % (w/v) for LI3T. The pH range for growth was pH 4–9.5 with an optimum of pH 8 for LI2T and pH 6.5 for LI3T. The predominant fatty acids were anteiso-C15 : 0, C18 : 0 and anteiso-C17 : 0 for LI2T and anteiso-C15 : 0 and C18 : 0 for LI3T. Physiological and biochemical tests clearly differentiated strain LI2T from A. stackebrandtii and A. psychrochitiniphilus and strain LI3T from A. kerguelensis and A. psychrophenolicus. Therefore, two novel species within the genus Arthrobacter are proposed: Arthrobacter livingstonensis sp. nov. (type strain LI2T  = DSM 22825T  = NCCB 100314T) and Arthrobacter cryotolerans sp. nov. (type strain LI3T  = DSM 22826T  = NCCB 100315T).


2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 596-600 ◽  
Author(s):  
Huo Hu ◽  
Hai-Peng Lin ◽  
Qingyi Xie ◽  
Lei Li ◽  
Xin-Qiang Xie ◽  
...  

A Streptomyces-like strain, 172205T, was obtained from mangrove soil collected at Qinglan Harbour, Wenchang, Hainan, China. The strain was characterized by white aerial mycelium and long spore chains. Comparison of 16S rRNA gene sequences indicated that the strain represents a novel member of the genus Streptomyces, exhibiting highest levels of similarity (<98.29 %) to the type strains of members of the genus Streptomyces. However, DNA–DNA relatedness and phenotypic data readily distinguished strain 172205T from phylogenetically related type strains. The predominant menaquinones were MK-9(H6) and MK-9(H8). The major fatty acids were iso-C15 : 0 (10.31 %), anteiso-C15 : 0 (35.19 %), iso-C16 : 0 (20.24 %) and anteiso-C17 : 0 (10.05 %). The diagnostic phospholipid was phosphatidylethanolamine. The cell wall contained ll-diaminopimelic acid and meso-diaminopimelic acid and whole-cell hydrolysates contained ribose, galactose and glucose. The results of DNA–DNA hybridization, physiological and biochemical tests allowed the genotypic and phenotypic differentiation of strain 172205T from phylogenetically related type strains. Therefore, strain 172205T is considered to represent a novel species of the genus Streptomyces, for which the name Streptomyces qinglanensis sp. nov. is proposed. The type strain is 172205T ( = CGMCC 4.6825T  = DSM 42035T).


2004 ◽  
Vol 54 (4) ◽  
pp. 1213-1216 ◽  
Author(s):  
Huapeng Fan ◽  
Yanfen Xue ◽  
Yanhe Ma ◽  
Antonio Ventosa ◽  
William D. Grant

A novel haloalkaliphilic archaeon, strain 8W8T, was isolated from Lake Zabuye, on the Tibetan Plateau, China. On the basis of 16S rRNA gene sequence analysis, strain 8W8T was shown to belong to the genus Halorubrum and was related to Halorubrum vacuolatum (96·7 % sequence similarity), Halorubrum saccharovorum (96·0 %), Halorubrum lacusprofundi (95·4 %) and Halorubrum sodomense (95·3 %). The phylogenetic distance from any species within the other genera of Halobacteriales was lower than 90 %. The major polar lipids of strain 8W8T were C20C20 and C20C25 derivatives of phosphatidylglycerol phosphate and phosphatidylglycerol phosphate methyl ester. The results of DNA–DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain 8W8T from the eight Halorubrum species with validly published names. Therefore, strain 8W8T represents a novel species, for which the name Halorubrum tibetense sp. nov. is proposed, with the type strain 8W8T (=AS 1.3239T=JCM 11889T).


2006 ◽  
Vol 56 (3) ◽  
pp. 541-547 ◽  
Author(s):  
Ingvild Wartiainen ◽  
Anne Grethe Hestnes ◽  
Ian R. McDonald ◽  
Mette M. Svenning

A Gram-negative, rod-shaped, non-motile, non-spore-forming, pink-pigmented bacterium, SV97T, was isolated from a wetland soil near Ny-Ålesund, Svalbard Islands, Norway (78° N). On the basis of 16S rRNA gene sequence similarity, strain SV97T was shown to belong to the Alphaproteobacteria and was highly related to a number of non-characterized Methylocystis strains with GenBank accession nos AJ458507 and AJ458502 (100 %) and AF177299, AJ458510, AJ458467, AJ458471, AJ431384, AJ458475, AJ458484, AJ458501 and AJ458466 (99 %). The most closely related type strains were Methylocystis parvus OBBPT (97·2 %) and Methylocystis echinoides IMET 10491T (97 %). The closest related recognized species within the genus Methylosinus was Methylosinus sporium NCIMB 11126T (96·0 % similarity). Chemotaxonomic and phenotypic data (C18 : 1 ω8 as the major fatty acid, non-motile, no rosette formation) supported the affiliation of strain SV97T to the genus Methylocystis. The results of DNA–DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain SV97T from the two recognized Methylocystis species. Strain SV97T therefore represents a novel species, for which the name Methylocystis rosea sp. nov. is proposed, with the type strain SV97T (=DSM 17261T=ATCC BAA-1196T).


2007 ◽  
Vol 57 (6) ◽  
pp. 1336-1341 ◽  
Author(s):  
Myung Kyum Kim ◽  
Ju-Ryun Na ◽  
Dong Ha Cho ◽  
Nak-Kyun Soung ◽  
Deok-Chun Yang

Strain Jip14T, a Gram-negative, non-spore-forming, rod-shaped, non-motile bacterium, was isolated from dried rice straw and characterized in order to determine its taxonomic position. 16S rRNA gene sequence analysis revealed that strain Jip14T belongs to the family Sphingobacteriaceae, and the highest degree of sequence similarity was determined to be to Pedobacter saltans DSM 12145T (88.5 %), Pedobacter africanus DSM 12126T (87.6 %), Pedobacter heparinus DSM 2366T (87.1 %) and Pedobacter caeni LMG 22862T (86.9 %). Chemotaxonomic data revealed that strain Jip14T possesses menaquinone MK-7 and the predominant fatty acids C15 : 0 iso, C16 : 0, C16 : 0 10-methyl, C17 : 0 iso 3-OH and summed feature 3 (C15 : 0 iso 2-OH/C16 : 1 ω7c). The results of physiological and biochemical tests clearly demonstrated that strain Jip14T represents a distinct species. Based on these data, Jip14T should be classified within a novel genus and species, for which the name Parapedobacter koreensis gen. nov., sp. nov. is proposed. The type strain of Parapedobacter koreensis is Jip14T (=KCTC 12643T=LMG 23493T).


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).


2006 ◽  
Vol 56 (7) ◽  
pp. 1615-1619 ◽  
Author(s):  
Myung Kyum Kim ◽  
Wan-Taek Im ◽  
Jun-Gyo In ◽  
Sung-Hoon Kim ◽  
Deok-Chun Yang

A Gram-negative, non-spore-forming, rod-shaped, motile bacterium, strain Ko06T, was isolated from soil from a ginseng field in South Korea and was characterized in order to determine its taxonomic position. 16S rRNA gene sequence analysis revealed that strain Ko06T belongs to the Gammaproteobacteria, and the highest levels of sequence similarity were with Thermomonas brevis LMG 21746T (98.4 %), Thermomonas fusca LMG 21737T (97.7 %), Thermomonas haemolytica A50-7-3T (96.5 %) and Thermomonas hydrothermalis SGM-6T (95.8 %). Chemotaxonomic data revealed that strain Ko06T possesses ubiquinone Q-8 and that the predominant fatty acids are C15 : 0 iso, C11 : 0 iso and C11 : 0 iso 3-OH, all of which corroborated assignment of the strain to the genus Thermomonas. The results of DNA–DNA hybridization and physiological and biochemical tests clearly demonstrated that strain Ko06T represents a distinct species. On the basis of these data, strain Ko06T (=KCTC 12540T=NBRC 101155T) should be classified as the type strain of a novel Thermomonas species, for which the name Thermomonas koreensis sp. nov. is proposed.


Sign in / Sign up

Export Citation Format

Share Document