scholarly journals Paenibacillus wooponensis sp. nov., isolated from wetland freshwater

2011 ◽  
Vol 61 (11) ◽  
pp. 2763-2768 ◽  
Author(s):  
Keun Sik Baik ◽  
Han Na Choe ◽  
Seong Chan Park ◽  
Eun Mi Kim ◽  
Chi Nam Seong

A rod-shaped, endospore-forming, Gram-reaction-positive bacterium, designated strain WPCB018T, was isolated from a fresh water sample collected from Woopo wetland, Korea. The isolate was identified as a member of the genus Paenibacillus on the basis of phenotypic characteristics and phylogenetic inference based on 16S rRNA gene sequence analysis. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and unknown aminophospholipids. The diamino acid found in the cell-wall peptidoglycan was meso-diaminopimelic acid. The predominant menaquinone was MK-7. The major cellular fatty acids were anteiso-C15 : 0 (32.2 %), C16 : 0 (20.1 %) and C18 : 0 (18.1 %). The DNA G+C content was 56.0 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain WPCB018T belongs to a cluster comprising species of the genus Paenibacillus, its closest neighbours being Paenibacillus humicus PC-147T (97.5 %) and Paenibcillus pasadenensis SAFN-007T (96.2 %). Genomic DNA–DNA hybridizations performed with strain WPCB018T and type strains of the species P. humicus, P. pinihumi, P. phyllosphaerae, P. pasadenensis and P. tarimensis showed relatedness values of only 10, 17, 18, 19 and 20 %, respectively. On the basis of phenotypic, molecular and genetic evidence, strain WPCB018T represents a novel species of the genus Paenibacillus, for which the name Paenibacillus wooponensis sp. nov. is proposed. The type strain of the novel species is WPCB018T ( = KCTC 13280T  = JCM 16350T).

2011 ◽  
Vol 61 (3) ◽  
pp. 529-534 ◽  
Author(s):  
Keun Sik Baik ◽  
Chae Hong Lim ◽  
Han Na Choe ◽  
Eun Mi Kim ◽  
Chi Nam Seong

A rod-shaped, endospore-forming, Gram-reaction-variable bacterial strain, designated WPCB173T, was isolated from freshwater collected from the Woopo wetland, Republic of Korea. Based on its phenotypic characteristics and phylogenetic position inferred from 16S rRNA gene sequence analysis, the isolate was identified as being a member of the genus Paenibacillus. Major polar lipids present in strain WPCB173T included phosphatidylethanolamine and several unidentified phospholipids. The diamino acid found in the cell-wall peptidoglycan was meso-diaminopimelic acid. The predominant menaquinone was MK-7. The major cellular fatty acid was anteiso-C15 : 0 (65.2 %). The DNA G+C content was 48.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain WPCB173T clustered with species of the genus Paenibacillus, its closest neighbours being Paenibacillus chinjuensis WN9T (96.7 %) and Paenibacillus soli DCY03T (96.4 %). DNA–DNA hybridization of strain WPCB173T with P. soli DCY03T and P. chinjuensis WN9T showed relatedness values of only 10 and 19 %, respectively. On the basis of the phenotypic and phylogenetic evidence, strain WPCB173T represents a novel species of the genus Paenibacillus, for which the name Paenibacillus rigui sp. nov. is proposed. The type strain of the novel species is WPCB173T (=KCTC 13282T =JCM 16352T).


2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3183-3189 ◽  
Author(s):  
Junwei Zhao ◽  
Lifeng Guo ◽  
Chongxi Liu ◽  
Pengyu Sun ◽  
Jiansong Li ◽  
...  

A novel actinomycete, designated strain NEAU-Jh2-17T, was isolated from muddy soil collected from a riverbank in Jilin Province, northern China, and characterized using a polyphasic approach. The 16S rRNA gene sequence of strain NEAU-Jh2-17T showed highest similarity to those of Streptomonospora nanhaiensis 12A09T (99.26 %), Nocardiopsis rosea YIM 90094T (97.31 %), Streptomonospora halophila YIM 91355T (97.24 %) and Streptomonospora arabica S186T (97.02 %). Phylogenetic analysis based on 16S rRNA gene sequences demonstrated that strain NEAU-Jh2-17T fell within a cluster consisting of the type strains of species of the genus Streptomonospora and formed a stable clade with S. nanhaiensis 12A09T in trees generated with two algorithms. Key morphological and chemotaxonomic properties also confirmed the affiliation of strain NEAU-Jh2-17T to the genus Streptomonospora. The cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid and whole-cell hydrolysates contained glucose, ribose and galactose. The polar lipids were diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phosphatidylcholine (PC), phosphatidylinositol (PI), phosphatidylinositol mannoside (PIM), two unknown phospholipids (PLs) and two unknown glycolipids (GLs). The predominant menaquinones were MK-10(H2), MK-10(H8), MK-10(H6) and MK-10(H4). Major fatty acids were C18 : 0 10-methyl, anteiso-C17 : 0, C16 : 0 10-methyl, iso-C15 : 0, C17 : 0 10-methyl and C18 : 0. The DNA G+C content was 71.82 mol%. However, a combination of DNA–DNA hybridization results and some phenotypic characteristics demonstrated that strain NEAU-Jh2-17T could be distinguished from its closely related relatives. Therefore, strain NEAU-Jh2-17T is considered to represent a novel species of the genus Streptomonospora, for which the name Streptomonospora halotolerans sp. nov. is proposed. The type strain is NEAU-Jh2-17T ( = CGMCC 4.7218T = JCM 30347T).


2007 ◽  
Vol 57 (5) ◽  
pp. 947-950 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Jung-Sook Lee ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped, Flavobacterium-like bacterial strain, DS-20T, was isolated from soil from the island of Dokdo, Korea, and subjected to a polyphasic taxonomic study. Strain DS-20T grew optimally at pH 6.5–7.0 and 25 °C. It contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 0 3-OH and iso-C17 : 1 ω9c as the major fatty acids. The DNA G+C content was 38.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-20T belonged to the genus Flavobacterium. Levels of 16S rRNA gene sequence similarity between strain DS-20T and the type strains of recognized Flavobacterium species were below 94.9 %. Strain DS-20T differed from phylogenetically related Flavobacterium species in several phenotypic characteristics. On the basis of its phenotypic and phylogenetic distinctiveness, strain DS-20T was classified in the genus Flavobacterium as representing a novel species, for which the name Flavobacterium terrigena sp. nov. is proposed. The type strain is DS-20T (=KCTC 12761T=DSM 17934T).


2004 ◽  
Vol 54 (6) ◽  
pp. 1927-1931 ◽  
Author(s):  
Akiko Kageyama ◽  
Katsukiyo Yazawa ◽  
Akira Mukai ◽  
Mari Kinoshita ◽  
Nobukatsu Takata ◽  
...  

Three actinomycete strains isolated from soils and one strain isolated from a patient with lung nocardiosis in 1999 and 2001 in Japan have been provisionally assigned to the genus Nocardia on the basis of morphological criteria. These isolates were further investigated to determine their specific taxonomic status. Detailed chemotaxonomic characterization and 16S rRNA gene sequence analysis of these isolates confirmed that they belong to the genus Nocardia. The 16S rRNA gene sequences of the four strains were most similar to that of Nocardia farcinica. However, the sequence similarity values between these four strains and N. farcinica were <98·9 %. These four strains were susceptible to 5-fluorouracil, and they have the ability to decompose urea, which is a very characteristic trait. Furthermore, DNA–DNA relatedness data revealed that IFM 10311T, IFM 10312 and IFM 10313 comprise a single novel species of Nocardia, that IFM 10084T represents another novel species of Nocardia and that these two novel species could be distinguished from N. farcinica. The names Nocardia shimofusensis sp. nov. and Nocardia higoensis sp. nov. are proposed, with IFM 10311T (=NBRC 100134T=JCM 12122T=DSM 44733T) and IFM 10084T (=NBRC 100133T=JCM 12121T=DSM 44732T) as the respective type strains.


2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2130-2134 ◽  
Author(s):  
Sha Liu ◽  
Dong Jin ◽  
Ruiting Lan ◽  
Yiting Wang ◽  
Qiong Meng ◽  
...  

The taxonomic position of a group of seven closely related lactose-negative enterobacterial strains, which were isolated from fresh faecal samples of Marmota himalayana collected from the Qinghai-Tibetan plateau, China, was determined by using a polyphasic approach. Cells were Gram-reaction-negative, non-sporulating, non-motile, short rods (0.5–1 × 1–2.5 μm). By 16S rRNA gene sequences, the representative strain, HT073016T, showed highest similarity values with Escherichia fergusonii ATCC 35469T at 99.3 %, Escherichia coli ATCC 11775T at 99.2 %, Escherichia albertii LMG 20976T at 98.9 %, Escherichia hermannii CIP 103176T at 98.4 %, and Escherichia vulneris ATCC 33821T at 97.7 %. Phylogenetic analysis based on the 16S rRNA gene sequences showed that the seven strains formed a monophyletic group with five other species of the genus Escherichia. Digital DNA–DNA hybridization studies between strain HT073016T and five other species of the genus Escherichia showed that it shared less than 70 % DNA–DNA relatedness with all known species of the genus Escherichia, supporting the novel species status of the strain. The DNA G+C content of strain HT073016T was 53.8 mol%. On the basis of phenotypic and phylogenetic characteristics, strain HT073016T and the six other HT073016T-like strains were clearly distinct from the type strains of other recognized species of the genus Escherichia and represent a novel species of the genus Escherichia, for which the name Escherichia marmotae sp. nov. is proposed, with HT073016T ( = CGMCC 1.12862T = DSM 28771T) as the type strain.


2006 ◽  
Vol 56 (9) ◽  
pp. 2229-2233 ◽  
Author(s):  
Soon-Wo Kwon ◽  
Byung-Yong Kim ◽  
Hang-Yeon Weon ◽  
Youn-Kyung Baek ◽  
Bon-Sung Koo ◽  
...  

A halophilic, aerobic bacterium, designated PO-M2T, was isolated from seashore sand, from Pohang, Korea and characterized on the basis of physiological and biochemical features. Phylogenetic analysis of 16S rRNA gene sequences revealed a clear affiliation of the novel strain with members of the genus Idiomarina. Sequence similarities between strain PO-M2T and the type strains of species belonging to the genus Idiomarina ranged from 94.3 to 95.5 %. Cells of strain PO-M2T were straight or slightly curved rods and formed light-yellow colonies on marine agar medium. The major isoprenoid quinone was ubiquinone (Q-8) and the predominant cellular fatty acids were C15 : 0 iso (19.3 %), C17 : 1 ω9c iso (11.9 %), C17 : 0 iso (10.9 %), C18 : 1 ω7c (10.4 %), C16 : 0 (9.0 %) and C16 : 1 ω7c and/or C15 : 0 iso 2-OH (7.2 %). The G+C content of the DNA was 45.1 mol%. Based on physiological, biochemical and chemotaxonomic traits and comparative 16S rRNA gene sequence analysis, it is demonstrated that the isolate represents a novel species of the genus Idiomarina, for which the name Idiomarina homiensis sp. nov. is proposed. The type strain is PO-M2T (=KACC 11514T=DSM 17923T).


2007 ◽  
Vol 57 (10) ◽  
pp. 2236-2240 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Jung-Sook Lee ◽  
Hyun Woo Oh ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped, Brevundimonas-like bacterial strain, DS-18T, was isolated from soil in Dokdo, Korea, and its exact taxonomic position was investigated by using a polyphasic approach. Strain DS-18T grew optimally at pH 6.5–7.0 and 25 °C without NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-18T belonged to the genus Brevundimonas. Strain DS-18T contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c and C16 : 0 as the major fatty acids. The DNA G+C content was 68.7 mol%. Strain DS-18T exhibited levels of 16S rRNA gene sequence similarity of 96.3–98.7 % to the type strains of Brevundimonas species and Mycoplana bullata. Mean DNA–DNA relatedness values between strain DS-18T and the type strains of phylogenetically related Brevundimonas species and M. bullata were in the range 15–32 %. Strain DS-18T differed from Brevundimonas species and M. bullata in several phenotypic characteristics. On the basis of phenotypic, phylogenetic and genetic data, strain DS-18T represents a novel species of the genus Brevundimonas, for which the name Brevundimonas lenta sp. nov. is proposed. The type strain is DS-18T (=KCTC 12871T =JCM 14602T).


2004 ◽  
Vol 54 (6) ◽  
pp. 1991-1995 ◽  
Author(s):  
Nomeda Kuisiene ◽  
Juozas Raugalas ◽  
Donaldas Chitavichius

Obligately thermophilic, aerobic, proteolytic, endospore-forming strain N-3T was isolated from a high-temperature oilfield in Lithuania. 16S rRNA gene sequence analysis placed this strain in genetic group 5 of the endospore formers. Geobacillus thermoleovorans appeared to be the closest phylogenetic neighbour (99·4 % sequence similarity). The G+C content of strain N-3T was 52·5 mol% and matched the range established for the genus Geobacillus. Studies of DNA–DNA relatedness and morphological and physiological analyses enabled strain N-3T to be described as a member of the genus Geobacillus, but could not assign this strain to any other known species of this genus. Results of this polyphasic study allowed characterization of strain N-3T as a novel species in the genus Geobacillus – Geobacillus lituanicus sp. nov. This species can be distinguished from G. thermoleovorans and Geobacillus stearothermophilus on the basis of 16S rRNA gene PCR-RFLP assays with the restriction endonucleases AluI, HaeIII and TaqI. The type strain of the novel species is N-3T (=DSM 15325T=VKM B-2294T).


2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 489-494 ◽  
Author(s):  
Shiou-Huei Chao ◽  
Yuko Kudo ◽  
Ying-Chieh Tsai ◽  
Koichi Watanabe

Three Gram-stain-positive strains were isolated from fermented mustard and were rod-shaped, non-motile, asporogenous, facultatively anaerobic, homofermentative and did not exhibit catalase activity. Comparative analyses of 16S rRNA, pheS and rpoA gene sequences demonstrated that the novel strains were members of the genus Lactobacillus. On the basis of 16S rRNA gene sequence analysis, the type strains of Lactobacillus crustorum (98.7 % similarity), Lactobacillus farciminis (98.9 %) and Lactobacillus mindensis (97.9 %) were the closest neighbours. However, DNA–DNA reassociation values with these strains were less than 50 %. Phenotypic and genotypic features demonstrated that these isolates represent a novel species of the genus Lactobacillus, for which the name Lactobacillus futsaii sp. nov. is proposed; the type strain is YM 0097T ( = JCM 17355T = BCRC 80278T).


Author(s):  
Dominic A. Stoll ◽  
Nicolas Danylec ◽  
Sebastian T. Soukup ◽  
Birgit Hetzer ◽  
Sabine E. Kulling ◽  
...  

The novel, anaerobic, Gram-positive, rod-shaped bacterial strain, ResAG-91T, was isolated from a faecal sample of a male human volunteer. Analysis of the 16S rRNA gene sequence revealed that strain ResAG-91T showed high similarity to the type strains of Adlercreutzia equolifaciens subsp. equolifaciens and Adlercreutzia equolifaciens subsp. celatus . Analysis of the whole draft genome sequences, i.e. digital DNA–DNA hybridization (dDDH) and average nucleotide identity (ANI), of strain ResAG-91T and the type strains of Adlercreutzia species revealed that strain ResAG-91T represents a novel species of the genus Adlercreutzia . The genome size of strain ResAG-91T is 2.8 Mbp and the G+C content is 63.3 mol%. The major respiratory quinone of strain ResAG-91T was MMK-5 (methylmenaquinone). Major cellular fatty acids were C15 : 0 anteiso, C14 : 0 iso and C14 : 0 2-OH. Galactose and ribose were detected as major whole cell sugars. Furthermore, the peptidoglycan type of strain ResAG-91T was A1γ with meso-diaminopimelic acid. The polar lipids were phosphatidylglycerol, diphosphatidylglycerol, one unidentified lipid, three unidentified phospholipids and five unidentified glycolipids. Strain ResAG-91T was able to metabolize the stilbene resveratrol into dihydroresveratrol. On the basis of this polyphasic approach, including phenotypical, molecular (16S rRNA gene and whole genome sequencing) and biochemical (fatty acids, quinones, polar lipids, peptidoglycan, whole cell sugars, Rapid ID32A and API20A) analyses, we propose the novel species Adlercreutzia rubneri sp. nov. with the type and only strain ResAG-91T (=DSM 111416T=JCM 34176T=LMG 31897T).


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