scholarly journals Pseudomonas psychrotolerans sp. nov.

2004 ◽  
Vol 54 (5) ◽  
pp. 1633-1637 ◽  
Author(s):  
Elke Hauser ◽  
Peter Kämpfer ◽  
Hans-Jürgen Busse

Three yellow-pigmented, Gram-negative, rod-shaped, non-spore-forming bacterial strains, C36T, C37 and C39, were isolated in the Medical Clinic for Small Animals and Ungulates at the University for Veterinary Medicine in Vienna, Austria. On the basis of 16S rRNA gene sequence similarity, strain C36T was shown to belong to the genus Pseudomonas; Pseudomonas oleovorans DSM 1045T was the nearest relative (99·5 % sequence similarity). Other Pseudomonas species shared <97 % sequence similarity with strain C36T. The presence of Q-9 as the major ubiquinone, the predominance of putrescine and spermidine in its polyamine patterns and its fatty acid profile [i.e. the predominance of C16 : 0, summed feature 3 (C16 : 1 ω7c and/or 2-OH C15 : 0 iso), C18 : 1 ω7c and the presence of 3-OH C10 : 0, 3-OH C12 : 0 and 2-OH C12 : 0] were in agreement with identification of this strain as a member of the genus Pseudomonas. Physiological and biochemical characteristics and the results of genomic fingerprinting clearly differentiated strain C36T from its phylogenetic relative P. oleovorans DSM 1045T. Results from DNA–DNA hybridization showed that strain C36T represents a species that is distinct from P. oleovorans DSM 1045T. These data demonstrate that strain C36T represents a novel species of the genus Pseudomonas, for which the name Pseudomonas psychrotolerans sp. nov. is proposed. The type strain is C36T (=LMG 21977T=DSM 15758T). Additionally, physiological, biochemical, chemotaxonomic and genomic fingerprints indicate that P. oleovorans ATCC 29347 may not be a member of the species P. oleovorans sensu stricto.

2005 ◽  
Vol 55 (6) ◽  
pp. 2565-2569 ◽  
Author(s):  
Hans-Jürgen Busse ◽  
Elke Hauser ◽  
Peter Kämpfer

Two Gram-negative, rod-shaped, non-spore-forming bacterial strains designated C42T and C52T were isolated in the Medical Clinic for Small Animals and Ungulates at the University for Veterinary Medicine Vienna, Austria. On the basis of 16S rRNA gene sequence similarity, both strains were shown to belong to the genus Sphingomonas. Strain C42T showed the greatest levels of sequence similarity with Sphingomonas melonis DSM 14444T and Sphingomonas aquatilis KCTC 2881T (both 97·7 %). Strain C52T showed the greatest levels of sequence similarity with Sphingomonas koreensis KCTC 2882T (97·2 %), Sphingomonas aquatilis KCTC 2881T (97·1 %) and S. melonis DSM 14444T (97·0 %). The presence of Q-10 as the main ubiquinone, the predominance of the compound sym-homospermidine in the polyamine patterns, the presence of a Sphingomonadaceae-specific sphingoglycolipid in the polar lipid patterns, the presence of the fatty acid 2-OH C14 : 0 and the lack of 3-hydroxy fatty acids supported the identification of the two novel strains as members of the genus Sphingomonas sensu stricto. Unique physiological characteristics, protein patterns, quantitative differences in their fatty acid profiles and the results of genomic fingerprinting and DNA–DNA hybridizations differentiated strains C42T and C52T from closely related Sphingomonas species. Hence, the two strains are described as novel species of the genus Sphingomonas sensu stricto. The names Sphingomonas abaci sp. nov. (type strain C42T=LMG 21978T=DSM 15867T) and Sphingomonas panni sp. nov. (type strain C52T=LMG 21979T=DSM 15761T) are proposed.


2010 ◽  
Vol 60 (12) ◽  
pp. 2913-2917 ◽  
Author(s):  
Saowapar Khianngam ◽  
Somboon Tanasupawat ◽  
Ancharida Akaracharanya ◽  
Kwang Kyu Kim ◽  
Keun Chul Lee ◽  
...  

Two xylan-degrading bacteria, strains MX15-2T and MX21-2T, were isolated from soils collected in Nan province, Thailand. Cells were Gram-reaction-positive, facultatively anaerobic, spore-forming and rod-shaped. They contained meso-diaminopimelic acid in the cell-wall peptidoglycan. The major menaquinone was MK-7. iso-C16 : 0 and anteiso-C15 : 0 were the predominant cellular fatty acids. Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and lysyl-phosphatidylglycerol were the major polar lipids. The genomic DNA G+C contents of strains MX15-2T and MX21-2T were 63.0 and 65.1 mol%, respectively. Phylogenetic analysis using 16S rRNA gene sequences showed that strains MX15-2T and MX21-2T were affiliated with the genus Cohnella and were closely related to Cohnella thermotolerans CCUG 47242T, with 96.5 and 95.6 % sequence similarity, respectively. The strains could be clearly distinguished from each other and from all known species of the genus Cohnella based on their physiological and biochemical characteristics as well as their phylogenetic positions and levels of DNA–DNA hybridization. Therefore, these two strains represent novel species of the genus Cohnella, for which the names Cohnella xylanilytica sp. nov. (type strain MX15-2T =KCTC 22294T =PCU 309T =TISTR 1891T) and Cohnella terrae sp. nov. (type strain MX21-2T =KCTC 22295T =PCU 310T =TISTR 1892T) are proposed.


2015 ◽  
Vol 65 (Pt_12) ◽  
pp. 4455-4460 ◽  
Author(s):  
Xuexin Wei ◽  
Shouwei Yan ◽  
Dai Li ◽  
Huancheng Pang ◽  
Yuyi Li ◽  
...  

A Gram-stain-negative, non-spore-forming, rod-shaped and aerobic bacterium, designated Xi19T, was isolated from a soil sample collected from the rhizosphere of sunflower (Helianthus annuus) in Wuyuan county of Inner Mongolia, China and was characterized taxonomically by using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the novel isolate was related to species of the genus Rhizobium, sharing the greatest 16S rRNA gene sequence similarity with Rhizobium rhizoryzae J3-AN59T (98.4 %), followed by Rhizobium pseudoryzae J3-A127T (97.4 %). There were low similarities ( < 91 %) between the atpD, recA and glnII gene sequences of the novel strain and those of members of the genus Rhizobium. DNA–DNA hybridization values between strain Xi19T and the most related strain Rhizobium rhizoryzae J3-AN59T were low. The major cellular fatty acids of strain Xi19T were C16 : 0, summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and C19 : 0 cyclo ω8c. Q-10 was identified as the predominant ubiquinone and the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidylcholine. The DNA G+C content of strain Xi19T was 60.2 mol%. On the basis of physiological and biochemical characteristics, coupled with genotypic data obtained in this work, strain Xi19T represents a novel species of the genus Rhizobium, for which the name Rhizobium helianthi is proposed. The type strain is Xi19T ( = CGMCC 1.12192T = KCTC 23879T).


2011 ◽  
Vol 61 (12) ◽  
pp. 2811-2815 ◽  
Author(s):  
Honghui Zhu ◽  
Shumei Jiang ◽  
Qing Yao ◽  
Yonghong Wang ◽  
Meibiao Chen ◽  
...  

An actinomycete, designated strain GIMN4.003T, was isolated from seawater collected in Sanya, China. It produced white aerial mycelium and yellow substrate mycelium on Gause’s synthetic agar medium no. 1. The substrate mycelium colour was not sensitive to pH. Scanning electron microscopy observations revealed that GIMN4.003T produced straight to flexuous spore chains of rough to warty spores. ll-Diaminopimelic acid was present in the cell-wall hydrolysate. Based on chemotaxonomy and morphological features, strain GIMN4.003T was identified as a member of the genus Streptomyces. Melanin was not produced. No antimicrobial activity was detected against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Penicillium citrinum or Candida albicans. Analysis of the 16S rRNA gene sequence revealed that the highest sequence similarity was to Streptomyces radiopugnans R97T (99.0 %). However, DNA relatedness between GIMN4.003T and S. radiopugnans DSM 41901T was low (41.24±1.47 %). Furthermore, the morphological, physiological and biochemical characteristics of strain GIMN4.003T were different from those of S. radiopugnans DSM 41901T and the type strains of other closely related Streptomyces species. On the basis of its physiological and molecular properties, it is evident that strain GIMN4.003T ( = CCTCCM 208215T  = NRRL B-24801T) represents the type strain of a novel species within the genus Streptomyces, for which the name Streptomyces fenghuangensis sp. nov. is proposed.


2010 ◽  
Vol 60 (2) ◽  
pp. 271-274 ◽  
Author(s):  
Jenny Schäfer ◽  
Karin Martin ◽  
Peter Kämpfer

A Gram-positive, coccoid-shaped organism (strain 02-Je-010T), forming yellow-pigmented colonies was isolated from the wall of an indoor environment. On the basis of 16S rRNA gene sequence similarity studies, it was shown that strain 02-Je-010T belongs to the genus Citricoccus with sequence similarities of 98.9 % to Citricoccus alkalitolerans DSM 15665T and 98.6 % to Citricoccus muralis DSM 14442T. Cell-wall sugars were mannose and glucose. The diagnostic diamino acid of the peptidoglycan was lysine. The major menaquinones detected were MK-9(H2) and MK-8(H2). The polar lipid profile consisted of the major lipids diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol and moderate amounts of two unknown phospholipids and two unknown glycolipids. The fatty acid profile comprised major amounts of anteiso-C15 : 0, anteiso-C17 : 0 and iso-C15 : 0. All these data supported the affiliation of strain 02-Je-010T to the genus Citricoccus. The results of DNA–DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain 02-Je-010T from the two recognized Citricoccus species. For these reasons, strain 02-Je-010T represents a novel species, for which the name Citricoccus parietis sp. nov. is proposed, with the type strain 02-Je-010T (=CCUG 57388T=CCM 7609T).


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).


2005 ◽  
Vol 55 (3) ◽  
pp. 1305-1309 ◽  
Author(s):  
Raúl Rivas ◽  
Carmen Gutiérrez ◽  
Adriana Abril ◽  
Pedro F. Mateos ◽  
Eustoquio Martínez-Molina ◽  
...  

Two sporulating bacterial strains designated CECAP06T and CECAP16 were isolated from the rhizosphere of the legume Cicer arietinum in Argentina. Almost-complete 16S rRNA gene sequences identified the isolates as a Paenibacillus species. It was most closely related to Paenibacillus cineris LMG 18439T (99·6 % sequence similarity), Paenibacillus favisporus LMG 20987T (99·4 % sequence similarity) and Paenibacillus azoreducens DSM 13822T (97·7 % sequence similarity). The cells of this novel species were motile, sporulating, rod-shaped, Gram-positive and strictly aerobic. The predominant fatty acids were anteiso-C15 : 0, C16 : 0 and iso-C16 : 0. The DNA G+C content of strains CECAP06T and CECAP16 was 51·3 and 50·9 mol%, respectively. Growth was observed from many carbohydrates, but gas production was not observed from glucose. Catalase and oxidase activities were present. The isolates produced β-galactosidase and hydrolysed aesculin. Gelatinase, caseinase and urease were not produced. The results of DNA–DNA hybridization showed that the strains from this study constitute a novel species of the genus Paenibacillus, for which the name Paenibacillus rhizosphaerae sp. nov. is proposed. The type strain is CECAP06T (=LMG 21955T=CECT 5831T).


2010 ◽  
Vol 60 (10) ◽  
pp. 2284-2287 ◽  
Author(s):  
Saowapar Khianngam ◽  
Somboon Tanasupawat ◽  
Ancharida Akaracharanya ◽  
Kwang Kyu Kim ◽  
Keun Chul Lee ◽  
...  

A xylanolytic bacterium, strain S1-3T, was isolated from soil collected in Nan province, Thailand. It was characterized taxonomically based on phenotypic characteristics and 16S rRNA gene sequence comparison. The strain was a Gram-stain-positive, facultatively anaerobic, spore-forming, rod-shaped bacterium. It contained meso-diaminopimelic acid in the cell-wall peptidoglycan. The major menaquinone was MK-7. Iso-C16 : 0 (39.5 %) and anteiso-C15 : 0 (26.8 %) were predominant cellular fatty acids. Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and lysyl-phosphatidylglycerol were the major polar lipids. The DNA G+C content was 53.3 mol%. Phylogenetic analysis using 16S rRNA gene sequences showed that strain S1-3T was affiliated to the genus Cohnella, and was closely related to Cohnella ginsengisoli GR21-5T and Cohnella thermotolerans CCUG 47242T with 95.7 and 95.3 % sequence similarity, respectively. Strain S1-3T could be clearly distinguished from related species of the genus Cohnella by its physiological and biochemical characteristics as well as by its phylogenetic position. Therefore, the strain represents a novel species of the genus Cohnella, for which the name Cohnella thailandensis sp. nov. is proposed. The type strain is S1-3T (=KCTC 22296T =TISTR 1890T =PCU 306T).


2007 ◽  
Vol 57 (3) ◽  
pp. 577-581 ◽  
Author(s):  
Yi-Ju Chou ◽  
Geoffrey N. Elliott ◽  
Euan K. James ◽  
Kuan-Yin Lin ◽  
Jui-Hsing Chou ◽  
...  

A bacterium designated strain Liujia-146T was isolated in the Tainan area of southern Taiwan from root nodules of the aquatic legume Neptunia oleracea. 16S rRNA gene sequence analysis indicated that strain Liujia-146T was highly similar to Labrys monachus VKM B-1479T (97.8 %) and Labrys methylaminiphilus JLW10T (95.5 %) and belonged to the order Rhizobiales in the Alphaproteobacteria. On the basis of phylogenetic analysis, DNA–DNA hybridization data, physiological and biochemical characteristics and fatty acid compositions, the organism was shown to belong to the genus Labrys whilst representing a novel species within this genus. We propose to classify strain Liujia-146T (=BCRC 17578T=LMG 23578T) as the type strain of Labrys neptuniae sp. nov.


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