scholarly journals Devosia litorisediminis sp. nov., isolated from a sand dune

Author(s):  
Sooyeon Park ◽  
Min Ju Seo ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon

Abstract A Gram-negative, aerobic, non-motile, and rod-shaped bacterial strain, designated BSSL-BM10T, was isolated from a sand dune that was collected from the Yellow Sea, Republic of Korea. It was subjected to a polyphasic taxonomic study. 16S rRNA gene sequence analysis showed that strain BSSL-BM10T fell phylogenetically within the radiation comprising type strains of Devosia species. The 16S rRNA gene sequence of strain BSSL-BM10T shared sequence similarities of 98.2% with the type strain of D. naphthalenivorans and 93.5-97.7% with type strains of other Devosia species. ANI and dDDH values between strain BSSL-BM10T and type strains of 18 Devosia species were 71.0-78.4% and 18.8-21.5%, respectively. The DNA G+C content of strain BSSL-BM10T was 60.9% based on its genomic sequence data. Strain BSSL-BM10T contained Q-10 as the predominant ubiquinone and 11-methyl C18:1 ω7c, C18:1 ω7c, summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), and C16:0 as its major fatty acids. Major polar lipids of strain BSSL-BM10T were phosphatidylglycerol and two unidentified glycolipids. Strain BSSL-BM10T showed distinguished phenotypic properties with its phylogenetic and genetic distinctiveness separated from recognized Devosia species. Based on data presented in this study, strain BSSL-BM10T should be placed in the genus Devosia. The name Devosia litorisediminis sp. nov. is proposed for strain BSSL-BM10T (= KACC 21633T = NBRC 115152T).

Author(s):  
Ho-Won Chang ◽  
Young-Do Nam ◽  
Hyuk-Yong Kwon ◽  
Ja Ryeong Park ◽  
Jung-Sook Lee ◽  
...  

A moderately halophilic, aerobic, Gram-negative bacterium was isolated from a tidal flat area of Dae-Chun, Chung-Nam, Korea. The strain, designated mano11T, comprised rod-shaped cells that were motile by means of polar flagella. It grew with 3–12 % NaCl and at 4–37 °C and pH 5.3–9.3. The predominant menaquinone present in this strain was MK-7 and diaminopimelic acid was not found in the cell-wall peptidoglycan. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain mano11T belongs to the genus Marinobacterium. Strain mano11T exhibited 92.8–98.3 % 16S rRNA gene sequence similarity when compared with the type strains of three other species of the genus Marinobacterium. DNA–DNA hybridization between strain mano11T and Marinobacterium georgiense DSM 11526T, its closest relative in terms of 16S rRNA gene sequence similarity, was 13 %. On the basis of the phenotypic, genetic and phylogenetic data, strain mano11T represents a novel species of the genus Marinobacterium, for which the name Marinobacterium halophilum sp. nov. is proposed. The type strain is mano11T (=KCTC 12240T=DSM 17586T).


2007 ◽  
Vol 57 (9) ◽  
pp. 2009-2013 ◽  
Author(s):  
Wael N. Hozzein ◽  
Michael Goodfellow

A polyphasic taxonomic study was undertaken to establish the status of a novel actinomycete, strain S155T, isolated from a sand dune soil in Egypt. The organism formed characteristic synnemata-like structures and exhibited chemical and morphological features consistent with its classification in the genus Streptomyces. An almost-complete 16S rRNA gene sequence of the isolate was compared with corresponding sequences of representative streptomycetes. The 16S rRNA gene sequence data supported the assignment of the strain to the genus Streptomyces and showed that it formed a distinct phyletic line; the organism was most similar to the type strains of Streptomyces ruber (97.0 %), Streptomyces rubiginosus (97.0 %), Streptomyces roseiscleroticus (96.9 %) and Streptomyces thermoalcalitolerans (97.1 %). It was readily distinguished from the type strains of these species using a combination of phenotypic properties. On the basis of these results, strain S155T (=CGMCC 4.2055T =DSM 41902T) is proposed as the type strain of the novel species Streptomyces synnematoformans sp. nov.


2004 ◽  
Vol 54 (5) ◽  
pp. 1799-1803 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
Soo-Hwan Yeo ◽  
In-Gi Kim ◽  
Tae-Kwang Oh

Two Gram-negative, motile, non-spore-forming and slightly halophilic rods (strains SW-145T and SW-156T) were isolated from sea water of the Yellow Sea in Korea. Strains SW-145T and SW-156T grew optimally at 37 and 30–37 °C, respectively, and in the presence of 2–6 % (w/v) NaCl. Strains SW-145T and SW-156T were chemotaxonomically characterized as having ubiquinone-9 as the predominant respiratory lipoquinone and C16 : 0, C18 : 1 ω9c, C16 : 1 ω9c and C12 : 0 3-OH as the major fatty acids. The DNA G+C contents of strains SW-145T and SW-156T were 58 and 57 mol%, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains SW-145T and SW-156T fell within the evolutionary radiation enclosed by the genus Marinobacter. The 16S rRNA gene sequences of strains SW-145T and SW-156T were 94·8 % similar. Strains SW-145T and SW-156T exhibited 16S rRNA gene sequence similarity levels of 94·3–98·1 and 95·4–97·7 %, respectively, with respect to the type strains of all Marinobacter species. Levels of DNA–DNA relatedness, together with 16S rRNA gene sequence similarity values, indicated that strains SW-145T and SW-156T are members of two species that are distinct from seven Marinobacter species with validly published names. On the basis of phenotypic properties and phylogenetic and genotypic distinctiveness, strains SW-145T (=KCTC 12185T=DSM 16070T) and SW-156T (=KCTC 12184T=DSM 16072T) should be placed in the genus Marinobacter as the type strains of two distinct novel species, for which the names Marinobacter flavimaris sp. nov. and Marinobacter daepoensis sp. nov. are proposed.


2010 ◽  
Vol 60 (4) ◽  
pp. 754-758 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Soo-Young Lee ◽  
Ki-Hoon Oh ◽  
Tae-Kwang Oh

A Gram-positive, non-motile and coccoid-, short rod- or rod-shaped bacterial strain, ISL-16T, was isolated from a marine solar saltern in Korea and its taxonomic position was investigated using a polyphasic taxonomic approach. Strain ISL-16T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ISL-16T joined the cluster comprising species of the genus Planococcus. Its 16S rRNA gene sequence contained the same signature nucleotides as those defined for the genus Planococcus. Strain ISL-16T exhibited 16S rRNA gene sequence similarity values of 96.9–98.2 % to the type strains of species of the genus Planococcus. Strain ISL-16T contained MK-8 and MK-7 as the predominant menaquinones and anteiso-C15 : 0, C16 : 1 ω7c alcohol and anteiso-C17 : 0 as the major fatty acids. The DNA G+C content was 48.3 mol%. DNA–DNA relatedness values between strain ISL-16T and the type strains of species of the genus Planococcus were 15–28 %. Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, enabled strain ISL-16T to be differentiated from recognized species of the genus Planococcus. On the basis of the data presented, strain ISL-16T is considered to represent a novel species of the genus Planococcus, for which the name Planococcus salinarum sp. nov. is proposed. The type strain is ISL-16T (=KCTC 13584T=CCUG 57753T). An emended description of the genus Planococcus is also given.


2011 ◽  
Vol 61 (4) ◽  
pp. 956-960 ◽  
Author(s):  
Gunnar Sturm ◽  
Johanna Jacobs ◽  
Cathrin Spröer ◽  
Peter Schumann ◽  
Johannes Gescher

A Gram-positive, irregular rod-shaped, non-motile, yellow-pigmented bacterium, strain JG 31T, was isolated in the course of identifying chromium-resistant soil bacteria. 16S rRNA gene sequence analysis of the isolated bacterium indicated its phylogenetic position within the genus Leucobacter. Binary 16S rRNA gene sequence alignments of the isolated bacterium with the 11 species of the genus recognized at the time of writing revealed sequence similarities of more than 97 % with Leucobacter alluvii (GenBank accession no: AM072820; 99.4 %), Leucobacter iarius (AM040493; 98.2 %), Leucobacter aridicollis (AJ781047; 97.8 %), Leucobacter komagatae (AB007419; 97.4 %), Leucobacter chironomi (EU346911; 97.1 %) and Leucobacter luti (AM072819; 97.1 %). In contrast, DNA–DNA hybridization experiments showed similarity values below 28 % for DNA samples from the most closely related type strains of L. alluvii, L. aridicollis and L. iarius. Protein analysis by matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and automated RiboPrinting using the restriction enzyme PvuII differentiated strain JG 31T from all type strains of the genus Leucobacter. The dominant fatty acids of the novel isolate were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0, while the quinone system consisted of menaquinones MK-11, MK-10, MK-9 and MK-8. In a B-type cross-linked peptidoglycan, the cell-wall amino acids were alanine, glycine, threonine, glutamic acid and 2,4-diaminobutyric acid. Strain JG 31T was able to grow in a medium containing up to 300 mM K2CrO4 and showed cellular aggregation in response to chromate stress. From biochemical and genomic analyses, the new strain is considered to represent a novel species of the genus Leucobacter, for which the name Leucobacter chromiiresistens sp. nov. is proposed. The type strain is strain JG 31T ( = DSM 22788T  = CCOS 200T).


2011 ◽  
Vol 61 (4) ◽  
pp. 722-727 ◽  
Author(s):  
Se Hee Lee ◽  
Jae Kuk Shim ◽  
Jeong Myeong Kim ◽  
Hyung-Kyoon Choi ◽  
Che Ok Jeon

A Gram-staining-negative, strictly aerobic bacterium, designated strain SD10T, was isolated from a tidal flat of the Yellow Sea, South Korea. Cells were non-spore-forming rods that showed catalase- and oxidase-positive reactions. Growth of strain SD10T was observed at 15–40 °C (optimum, 25–30 °C), at pH 6.0–9.0 (optimum, pH 6.5–8.5) and in the presence of 1–10 % (w/v) NaCl. Strain SD10T contained ubiquinone-10 (Q-10) as a major isoprenoid quinone and C18 : 1ω7c (39.3 %), C16 : 0 (20.2 %), C17 : 0 (8.9 %) and C17 : 1ω6c (8.1 %) as major fatty acids. The cellular polar lipids were identified as phosphatidylglycerol, monoglycosyldiglyceride, glucuronopyranosyldiglyceride and two unidentified glycolipids. The G+C content of the genomic DNA was 55.2 mol%. Based on 16S rRNA gene sequence similarities, the strain was most closely related to Henriciella marina Iso4T and Maribaculum marinum P38T, with similarities of 97.8 and 97.0 %, respectively. The DNA–DNA relatedness between strain SD10T and H. marina Iso4T was 12.0±3.2 %. A phylogenetic analysis based on 16S rRNA gene sequences showed that M. marinum P38T and H. marina Iso4T formed a monophyletic cluster and that their 16S rRNA gene sequence similarity was 98.1 %. DNA–DNA hybridization between H. marina Iso4T and M. marinum LMG 24711T was 22.9±2.7 %, indicating that the two strains belong to separate species. On the basis of chemotaxonomic data and molecular properties, we propose that strain SD10T represents a novel species of the genus Henriciella, for which the name Henriciella litoralis sp. nov. is proposed. The type strain is SD10T ( = KACC 13700T  = DSM 22014T). In addition, we propose to transfer Maribaculum marinum Lai et al. 2009 to the genus Henriciella as Henriciella aquimarina nom. nov. (type strain P38T  = CCTCC AB 208227T  = LMG 24711T  = MCCC 1A01086T), and we present an emended description of the genus Henriciella.


2007 ◽  
Vol 57 (9) ◽  
pp. 1966-1969 ◽  
Author(s):  
Shoichi Hosoya ◽  
Akira Yokota

A Gram-negative, rod-shaped bacterium, IG8T, was isolated from seawater off the Sanriku coast, Japan. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain IG8T represented a separate lineage within the genus Loktanella; the highest 16S rRNA gene sequence similarity values were found with the type strains of Loktanella salsilacus (98.6 %) and Loktanella fryxellensis (98.4 %). DNA–DNA hybridization values between strain IG8T and the type strains of L. salsilacus (27.9–36.1 %) and L. fryxellensis (11.3–31.0 %) were clearly below 70 %, the generally accepted limit for species delineation. The DNA G+C content of strain IG8T was 66.3 mol%. On the basis of DNA–DNA hybridization, some biochemical characteristics and 16S rRNA gene sequence comparison, it is proposed that the isolate represents a novel species, Loktanella atrilutea sp. nov. The type strain is IG8T (=IAM 15450T=NCIMB 14280T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2908-2912 ◽  
Author(s):  
Young-Ok Kim ◽  
Hee Jeong Kong ◽  
Sooyeon Park ◽  
So-Jung Kang ◽  
Kyung-Kil Kim ◽  
...  

A Gram-stain-negative, non-motile, non-spore-forming and short rod- or rod-shaped bacterial strain, designated 22-5T, was isolated from a bluespotted cornetfish, Fistularia commersonii, and subjected to taxonomic study. Strain 22-5T grew optimally at 30 °C and in the presence of 2–5 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain 22-5T belonged to the genus Paracoccus and joined the cluster comprising Paracoccus homiensis DD-R11T and Paracoccus zeaxanthinifaciens ATCC 21588T, with which strain 22-5T exhibited 97.4 and 96.9 % 16S rRNA gene sequence similarity, respectively. Strain 22-5T exhibited 94.0–96.6 % 16S rRNA gene sequence similarity with the other type strains of species of the genus Paracoccus. Strain 22-5T contained Q-10 as the predominant menaquinone and C18 : 1 ω7c as the predominant fatty acid. In this study, P. zeaxanthinifaciens KCTC 22688T also contained Q-10 as the predominant isoprenoid quinone. The DNA G+C content of strain 22-5T was 63.6 mol%. Strain 22-5T exhibited 44 and 32 % DNA–DNA relatedness to P. homiensis KACC 11518T and P. zeaxanthinifaciens KCTC 22688T, respectively. On the basis of phenotypic, phylogenetic and genetic data, strain 22-5T is considered to represent a novel species of the genus Paracoccus, for which the name Paracoccus fistulariae sp. nov. is proposed. The type strain is 22-5T (=KCTC 22803T =CCUG 58401T).


2010 ◽  
Vol 60 (1) ◽  
pp. 205-208 ◽  
Author(s):  
Isao Yumoto ◽  
Kikue Hirota ◽  
Hideyuki Kimoto ◽  
Yoshinobu Nodasaka ◽  
Hidetoshi Matsuyama ◽  
...  

A Gram-negative, non-motile, psychrotolerant bacterium exhibiting high catalase activity, designated strain T-3-2T, was isolated from a drain of a fish-processing plant. Its catalase activity was 12 000 U (mg protein)−1, much higher than the activity of the other Psychrobacter strains tested. The strain grew at 0–30 °C and in the presence of 0–12 % NaCl. The predominant isoprenoid quinone was ubiquinone-8 (Q-8), and C16 : 1 ω9c and C18 : 1 ω9c were the predominant cellular fatty acids. The DNA G+C content of strain T-3-2T was 43.9 mol%. 16S rRNA gene sequence phylogeny suggested that strain T-3-2T is a member of the genus Psychrobacter, with the closest relatives being the type strains of Psychrobacter nivimaris (99.2 % similarity), P. aquimaris (98.7 %) and P. proteolyticus (98.5 %). DNA–DNA hybridization showed less than 65 % relatedness with these strains. A phylogenetic tree based on gyrB gene sequences was more reliable, with higher bootstrap values than the 16S rRNA gene sequence-based tree. The result also differentiated the isolate from previously reported Psychrobacter species. Owing to the significant differences in phenotypic and chemotaxonomic characteristics and the phylogenetic and DNA–DNA relatedness data, the isolate merits classification within a novel species, for which the name Psychrobacter piscatorii sp. nov. is proposed. The type strain is T-3-2T (=JCM 15603T =NCIMB 14510T).


2011 ◽  
Vol 61 (8) ◽  
pp. 1968-1972 ◽  
Author(s):  
Myungjin Lee ◽  
Song-Geun Woo ◽  
Giho Park ◽  
Myung Kyum Kim

A Gram-negative, non-motile bacterium, designated MJ17T, was isolated from sludge at the Daejeon sewage disposal plant in South Korea. Comparative 16S rRNA gene sequence analysis showed that strain MJ17T belonged to the genus Paracoccus in the family Rhodobacteraceae of the class Alphaproteobacteria. 16S rRNA gene sequence similarities between strain MJ17T and type strains of species of the genus Paracoccus were 94.1–97.4 %. The highest similarities were between strain MJ17T and Paracoccus homiensis DD-R11T, Paracoccus zeaxanthinifaciens ATCC 21588T and Paracoccus alcaliphilus JCM 7364T (97.4, 97.2 and 96.3 %, respectively). Strain MJ17T exhibited <22 % DNA–DNA relatedness with P. homiensis KACC 11518T and P. zeaxanthinifaciens JCM 21774T. The G+C content of the genomic DNA was 58.7 mol%. Strain MJ17T contained ubiquinone Q-10. The major fatty acids were C18 : 0 (11.3 %), C16 : 0 (10.2 %) and summed feature 7 (containing one or more of C18 : 1ω7c, C18 : 1ω9c and C18 : 1ω12t; 54.3 %). Poly-β-hydroxybutyrate granules are formed. On the basis of phenotypic and genotypic properties and phylogenetic distinctiveness, strain MJ17T should be classified in a novel species of the genus Paracoccus, for which the name Paracoccus caeni sp. nov. is proposed. The type strain is MJ17T ( = KCTC 22480T  = JCM 16385T  = KEMB 9004-001T).


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