scholarly journals Halonotius pteroides gen. nov., sp. nov., an extremely halophilic archaeon recovered from a saltern crystallizer

2010 ◽  
Vol 60 (5) ◽  
pp. 1196-1199 ◽  
Author(s):  
David G. Burns ◽  
Peter H. Janssen ◽  
Takashi Itoh ◽  
Masahiro Kamekura ◽  
Akinobu Echigo ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
Cross Hybridization ◽  
Extremely Halophilic Archaeon ◽  
Additional Reference ◽  
Reference Strains

Strains 1.15.5T, 2.27.5, 5.24.4 and 6.14.5 were isolated from a solar saltern. They have flattened, rod-shaped cells and are aerobic, extremely halophilic members of the domain Archaea and family Halobacteriaceae. Cells stained Gram-negative and grew optimally in media around neutral pH and containing 20–24 % (w/v) (strains 1.15.5T and 2.27.5) or 22–24 % (w/v) (5.24.4 and 6.14.5) salts. Mg2+ was not required. The DNA G+C contents of these isolates were all close to 58 mol%, and DNA–DNA cross-hybridization showed a mean relatedness of 77 %. Their 16S rRNA gene sequences differed by no more than 1.6 % from each other. Phylogenetic tree reconstructions with other recognized members of the Halobacteriaceae indicated that they formed a distinct clade, with the closest relative being Halorubrum saccharovorum (86.6–87.6 % 16S rRNA gene sequence similarity to the type strain). The only major polar lipid of all four isolates was the sulfated diglycosyl diether lipid S-DGD-1. By phase-contrast microscopy, the long, flattened cells of these strains often displayed a ‘wing-like’ shape. The phenotypic and phylogenetic data support the placement of these isolates into a novel species in a new genus within the Halobacteriaceae, for which we propose the name Halonotius pteroides gen. nov., sp. nov. The type strain of Halonotius pteroides is 1.15.5T (=JCM 14355T =CECT 7525T =DSM 18729T), with the additional reference strains 2.27.5 (=JCM 14356 =DSM 18671), 5.24.4 (=JCM 14357 =DSM 18673) and 6.14.5 (=JCM 14358 =DSM 18692).

scholarly journals Cohnella yongneupensis sp. nov. and Cohnella ginsengisoli sp. nov., isolated from two different soils

2010 ◽  
Vol 60 (3) ◽  
pp. 526-530 ◽  
Author(s):  
Soo-Jin Kim ◽  
Hang-Yeon Weon ◽  
Yi-Seul Kim ◽  
Rangasamy Anandham ◽  
Young-Ah Jeon ◽  
...  
Keyword(s):  
Fatty Acids ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
Rrna Gene Sequence

Two aerobic, Gram-positive, rod-shaped bacterial strains, 5YN10-14T and GR21-5T, were isolated from the Yongneup wetland and ginseng soil in Korea, respectively. The two strains formed ellipsoidal or oval spores positioned centrally or paracentrally in swollen sporangia. On the basis of 16S rRNA gene sequence analysis, these strains were related to members of the genus Cohnella. 16S rRNA gene sequence similarity between strains 5YN10-14T and GR21-5T was 95.9 %. Strains 5YN10-14T and GR21-5T showed, respectively, 94.3 and 95.2 % 16S rRNA gene sequence similarity to Cohnella thermotolerans CCUG 47242T, 94.6 and 94.4 % to Cohnella hongkongensis HKU3T, 94.7 and 94.7 % to Cohnella laeviribosi RI-39T, and 95.4 and 94.8 % to Cohnella phaseoli GSPC1T. The major fatty acids of strain 5YN10-14T were anteiso-C15 : 0 (51.1 %), iso-C16 : 0 (18.5 %) and C16 : 0 (13.2 %), and the major fatty acids of strain GR21-5T were anteiso-C15 : 0 (48.9 %), iso-C16 : 0 (15.0 %) and iso-C15 : 0 (12.2 %). The two strains contained menaquinone with seven isoprene units (MK-7) as the predominant quinone, and diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine as major polar lipids; however, strain 5YN10-14T also contained lysylphosphatidylglycerol as a major polar lipid, whereas strain GR21-5T had an unknown aminophospholipid as another major polar lipid. The DNA G+C contents of strains 5YN10-14T and GR21-5T were 58.8 and 61.3 mol%, respectively. Based on the results of the phylogenetic and phenotypic data presented, it was concluded that the two strains represent two novel species of the genus Cohnella, for which the names Cohnella yongneupensis sp. nov. (type strain 5YN10-14T=KACC 11768T=DSM 18998T) and Cohnella ginsengisoli sp. nov. (type strain GR21-5T=KACC 11771T=DSM 18997T) are proposed.

scholarly journals Parapedobacter luteus sp. nov. and Parapedobacter composti sp. nov., isolated from cotton waste compost

2010 ◽  
Vol 60 (8) ◽  
pp. 1849-1853 ◽  
Author(s):  
Soo-Jin Kim ◽  
Hang-Yeon Weon ◽  
Yi-Seul Kim ◽  
Seung-Hee Yoo ◽  
Byung-Yong Kim ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
Rrna Gene Sequence ◽  
Phenotypic Data

Two aerobic, Gram-reaction-negative, non-spore-forming bacterial strains, 4M29T and 4M40T, were isolated from cotton composts. The two strains grew in the presence of 0–5 % (w/v) NaCl (optimum growth in the absence of NaCl), at pH 6.0–8.0 (optimum, pH 7.0) and at 15–45 °C (optimum, 30 °C). The strains shared 97.1 % 16S rRNA gene sequence similarity. Strains 4M29T and 4M40T showed the next highest levels of 16S rRNA gene sequence similarity to Parapedobacter koreensis Jip14T (95.6 and 94.4 %, respectively) and Parapedobacter soli DCY14T (95.2 and 93.8 %). The level of DNA–DNA relatedness between strains 4M29T and 4M40T was 38 %. The two strains contained iso-C15 : 0, summed feature 3 (comprising iso-C15 : 0 2-OH and/or C16 : 1 ω7c) and iso-C17 : 0 3-OH as major fatty acids, MK-7 as the major respiratory quinone, homospermidine as the only polyamine and phosphatidylethanolamine as the major polar lipid. The DNA G+C contents of strains 4M29T and 4M40T were 47.6 and 48.6 mol%, respectively. On the basis of phylogenetic and phenotypic data, strains 4M29T and 4M40T are considered to represent two novel species of the genus Parapedobacter, for which the names Parapedobacter luteus sp. nov. (type strain 4M29T =KACC 10955T =JCM 15977T) and Parapedobacter composti sp. nov. (type strain 4M40T =KACC 10972T =JCM 15978T) are proposed.

scholarly journals Pedobacter lignilitoris sp. nov., isolated from wood falls

2015 ◽  
Vol 65 (Pt_10) ◽  
pp. 3481-3486 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Yong-Taek Jung ◽  
Sung-Min Won ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
The Novel ◽  
Phenotypic Properties ◽  
South Sea ◽  
Type Strains

A Gram-stain-negative, aerobic, non-motile and rod-shaped bacterial strain, designated W-WS13T, was isolated from wood falls collected around Wando, an island in the South Sea of South Korea, and subjected to a polyphasic taxonomic study. Strain W-WS13T grew optimally at 30 °C, at pH 7.5 and in the presence of 0.5 % NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain W-WS13T belonged to the genus Pedobacter, clustering robustly with the type strain of Pedobacter arcticus, sharing 95.9 % sequence similarity. Strain W-WS13T exhibited 16S rRNA gene sequence similarity of 90.1–95.6 % to the type strains of the other species of the genus Pedobacter. Strain W-WS13T contained MK-7 as the predominant menaquinone and iso-C15 : 0, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipid detected in strain W-WS13T was phosphatidylethanolamine. The DNA G+C content of strain W-WS13T was 36.9 mol%. Phylogenetic distinctiveness and differential phenotypic properties of strain W-WS13T revealed that the novel strain is separated from recognized species of the genus Pedobacter. On the basis of the data presented, strain W-WS13T is considered to represent a novel species of the genus Pedobacter, for which the name Pedobacter lignilitoris sp. nov. is proposed. The type strain is W-WS13T ( = KCTC 42500T = CECT 8725T).

scholarly journals Halolamina sediminis sp. nov., an extremely halophilic archaeon isolated from solar salt

2015 ◽  
Vol 65 (Pt_8) ◽  
pp. 2479-2484 ◽  
Author(s):  
Hyeon-Woo Koh ◽  
Hye Seon Song ◽  
Uhram Song ◽  
Kyung June Yim ◽  
Seong Woon Roh ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Unidentified Phospholipid ◽  
Solar Salt ◽  
Nacl Concentration ◽  
Optimum Ph ◽  
Extremely Halophilic Archaeon ◽  
Reference Strains

An extremely halophilic archaeal strain, halo-7T, was isolated from brine sediment of the Gomso solar saltern, Republic of Korea. Cells of strain halo-7T were pleomorphic, stained Gram-negative, lysed in distilled water and formed red-pigmented colonies. Strain halo-7T grew in the range of 25–45 °C (optimum 37–40 °C), pH 6.5–9.5 (optimum pH 7.0–8.0), 15–30 % (w/v) NaCl (optimum, 20–25 %), and 0.05–0.5 M MgCl2 (optimum 0.1–0.3 M). The minimal NaCl concentration to prevent cell lysis of strain halo-7T was 10 % (w/v). The major polar lipids of the isolate were phosphatidylglycerol, phosphatidylglycerolphosphate methyl ester, an unidentified phospholipid, an unidentified lipid, and two unidentified glycolipids. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain halo-7T is closely related to the members of the genus Halolamina, Halolamina salina WSY15-H3T (98.7 % 16S rRNA gene sequence similarity), Halolamina pelagica TBN21T (98.2 %) and Halolamina rubra CBA1107T (97.4 %). The genomic DNA G+C content determined for strain halo-7T (68.0 mol%) was slightly higher than those of H. salina JCM 18549T and H. rubra CBA1107T. DNA–DNA hybridization values between strain halo-7T and reference strains were < 25 %. Based on phenotypic, chemotaxonomic and phylogenetic properties, we describe a novel species of the genus Halolamina, represented by strain halo-7T, for which we propose the name Halolamina sediminis sp. nov. The type strain is halo-7T ( = JCM 30187T = CECT 8739T).

scholarly journals Pseudoseohaeicola caenipelagi gen. nov., sp. nov., isolated from a tidal flat

2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1819-1824 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Song-Gun Kim ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Strain ◽  
Type Species ◽  
Phylogenetic Trees ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

A Gram-stain-negative, non-motile, aerobic and pleomorphic bacterium, designated BS-W13T, was isolated from a tidal flat on the South Sea, South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain BS-W13T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 1.0–2.0 % (w/v) NaCl. Neighbour-joining and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain BS-W13T clustered with the type strain of Seohaeicola saemankumensis , showing the highest sequence similarity (95.96 %) to this strain. Strain BS-W13T exhibited 16S rRNA gene sequence similarity values of 95.95, 95.91, 95.72 and 95.68 % to the type strains of Sulfitobacter donghicola , Sulfitobacter porphyrae , Sulfitobacter mediterraneus and Roseobacter litoralis , respectively. Strain BS-W13T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The polar lipid profile of strain BS-W13T, containing phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid as major components, was distinguishable from those of some phylogenetically related taxa. The DNA G+C content of strain BS-W13T was 58.1 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain BS-W13T constitutes a novel genus and species within family Rhodobacteraceae of the class Alphaproteobacteria , for which the name Pseudoseohaeicola caenipelagi gen. nov., sp. nov. is proposed. The type strain is BS-W13T ( = KCTC 42349T = CECT 8724T).

scholarly journals Exiguobacterium aestuarii sp. nov. and Exiguobacterium marinum sp. nov., isolated from a tidal flat of the Yellow Sea in Korea

2005 ◽  
Vol 55 (2) ◽  
pp. 885-889 ◽  
Author(s):  
In-Gi Kim ◽  
Mi-Hwa Lee ◽  
Seo-Youn Jung ◽  
Jae Jun Song ◽  
Tae-Kwang Oh ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Yellow Sea ◽  
Type Strain ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence

Three Gram-variable, rod-shaped bacterial strains, TF-16T, TF-19 and TF-80T, were isolated from a tidal flat of Daepo Beach (Yellow Sea) near Mokpo City, Korea, and their taxonomic positions were investigated by a polyphasic approach. These isolates grew optimally in the presence of 2 % NaCl and at 30 °C. Their peptidoglycan types were based on l-Lys–Gly. The predominant menaquinone detected in the three strains was MK-7. The three strains contained large amounts of the branched fatty acids iso-C17 : 0, anteiso-C13 : 0, iso-C13 : 0 and iso-C15 : 0. The DNA G+C contents of strains TF-16T, TF-19 and TF-80T were 48·6, 48·4 and 48·0 mol%, respectively. The three strains formed a coherent cluster with Exiguobacterium species in a phylogenetic tree based on 16S rRNA gene sequences. They showed closest phylogenetic affiliation to Exiguobacterium aurantiacum, with 16S rRNA gene sequence similarity values of 98·1–98·3 %. The three strains exhibited 16S rRNA gene sequence similarity values of 94·0–94·6 % to the type strains of other Exiguobacterium species. Levels of DNA–DNA relatedness indicated that strains TF-16T and TF-19 and strain TF-80T are members of two species that are separate from E. aurantiacum. On the basis of phenotypic, phylogenetic and genetic data, strains TF-16T and TF-19 and strain TF-80T represent two novel species in the genus Exiguobacterium; the names Exiguobacterium aestuarii sp. nov. (type strain TF-16T=KCTC 19035T=DSM 16306T; reference strain TF-19) and Exiguobacterium marinum sp. nov. (type strain TF-80T=KCTC 19036T=DSM 16307T) are proposed.

scholarly journals Halalkalicoccus jeotgali sp. nov., a halophilic archaeon from shrimp jeotgal, a traditional Korean fermented seafood

2007 ◽  
Vol 57 (10) ◽  
pp. 2296-2298 ◽  
Author(s):  
Seong Woon Roh ◽  
Young-Do Nam ◽  
Ho-Won Chang ◽  
Youlboong Sung ◽  
Kyoung-Ho Kim ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Rrna Gene ◽  
Halophilic Archaeon ◽  
Gene Sequences ◽  
16S Rrna Gene Sequences ◽  
Biochemical Tests ◽  
Extremely Halophilic Archaeon ◽  
Physiological And Biochemical

A novel, extremely halophilic archaeon B3T was isolated from shrimp-salted seafood. Its morphology, physiology, biochemical features and 16S rRNA gene sequence were characterized. Strain B3T is non-motile, Gram-variable, requires at least 10 % (w/v) NaCl for growth and grows in the ranges of 21–50 °C and pH 6.5–9.0. The DNA G+C content of strain B3T was 63.2 mol%. Phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain B3T belonged to the genus Halalkalicoccus and was phylogenetically closely related to the type strain Halalkalicoccus tibetensis (98.64 %). However, DNA–DNA hybridization experiments showed 7.0 % relatedness between strain B3T and a strain of a reference species of the genus Halalkalicoccus. Combined analysis of 16S rRNA gene sequences, DNA–DNA relatedness data, physiological and biochemical tests indicated that the genotypic and phenotypic characteristics differentiate strain B3T from other Halalkalicoccus species. On the basis of the evidence presented in this report, strain B3T represents a novel species of the genus Halalkalicoccus, for which the name Halalkalicoccus jeotgali. sp. nov. is proposed. The type strain is B3T (=KCTC 4019T=DSM 18796T=JCM 14584T=CECT 7217T).

scholarly journals Bacillus thermolactis sp. nov., isolated from dairy farms, and emended description of Bacillus thermoamylovorans

2011 ◽  
Vol 61 (8) ◽  
pp. 1954-1961 ◽  
Author(s):  
An Coorevits ◽  
Niall A. Logan ◽  
Anna E. Dinsdale ◽  
Gillian Halket ◽  
Patsy Scheldeman ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Diaminopimelic Acid ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Emended Description

A polyphasic taxonomic study was performed on 22 thermotolerant, aerobic, endospore-forming bacteria from dairy environments. Seventeen isolates were retrieved from raw milk, one from a filter cloth and four from grass, straw or milking equipment. These latter four isolates (R-6546, R-7499, R-7764 and R-7440) were identified as Bacillus thermoamylovorans based on DNA–DNA hybridizations (values above 70 % with Bacillus thermoamylovorans LMG 18084T) but showed discrepancies in characteristics with the original species description, so an emended description of this species is given. According to 16S rRNA gene sequence analysis and DNA–DNA hybridization experiments, the remaining 18 isolates (R-6488T, R-28193, R-6491, R-6492, R-7336, R-33367, R-6486, R-6770, R-31288, R-28160, R-26358, R-7632, R-26955, R-26950, R-33520, R-6484, R-26954 and R-7165) represented one single species, most closely related to Bacillus thermoamylovorans (93.9 % 16S rRNA gene sequence similarity), for which the name Bacillus thermolactis is proposed. Cells were Gram-stain-positive, facultatively anaerobic, endospore-forming rods that grew optimally at 40–50 °C. The cell wall peptidoglycan type of strain R-6488T, the proposed type strain, was A1γ based on meso-diaminopimelic acid. Major fatty acids of the strains were C16 : 0 (28.0 %), iso-C16 : 0 (12.1 %) and iso-C15 : 0 (12.0 %). MK-7 was the predominant menaquinone, and major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and some unidentified phospholipids. DNA G+C content was 35.0 mol%. Phenotypic properties allowed discrimination from other thermotolerant species of the genus Bacillus and supported the description of the novel species Bacillus thermolactis, with strain R-6488T ( = LMG 25569T  = DSM 23332T) as the proposed type strain.

scholarly journals Marinobacter gudaonensis sp. nov., isolated from an oil-polluted saline soil in a Chinese oilfield

2007 ◽  
Vol 57 (2) ◽  
pp. 250-254 ◽  
Author(s):  
Jun Gu ◽  
Hua Cai ◽  
Su-Lin Yu ◽  
Ri Qu ◽  
Bin Yin ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Saline Soil ◽  
Sequence Similarity ◽  
Eastern China ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Shengli Oilfield ◽  
Major Respiratory Quinone ◽  
Reference Strains

Two novel strains, SL014B61AT and SL014B11A, were isolated from an oil-polluted saline soil from Gudao in the coastal Shengli Oilfield, eastern China. Cells of strains SL014B61AT and SL014B11A were motile, Gram-negative and rod-shaped. Growth occurred at NaCl concentrations of between 0 and 15 % and at temperatures of between 10 and 45 °C. Strain SL014B61AT had Q9 as the major respiratory quinone and C16 : 0 (21.2 %), C18 : 1ω9c (20.3 %), C16 : 1ω7c (7.3 %) and C16 : 1ω9c (6.4 %) as predominant fatty acids. The G+C content of the DNA was 57.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SL014B61AT belonged to the genus Marinobacter in the class Gammaproteobacteria. Strain SL014B61AT showed the highest 16S rRNA gene sequence similarity with Marinobacter bryozoorum (97.9 %) and showed 97.8 % sequence similarity to Marinobacter lipolyticus. DNA–DNA relatedness to the reference strains Marinobacter bryozoorum and Marinobacter lipolyticus was 35.5 % and 33.8 %, respectively. On the basis of these data, it is proposed that strains SL014B61AT and SL014B11A represent a novel species, Marinobacter gudaonensis sp. nov. The type strain is strain SL014B61AT (=DSM 18066T=LMG 23509T=CGMCC 1.6294T).

scholarly journals Methanobacterium movens sp. nov. and Methanobacterium flexile sp. nov., isolated from lake sediment

2011 ◽  
Vol 61 (12) ◽  
pp. 2974-2978 ◽  
Author(s):  
Jinxing Zhu ◽  
Xiaoli Liu ◽  
Xiuzhu Dong
Keyword(s):  
Phylogenetic Analysis ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Qaidam Basin ◽  
Sequence Similarity ◽  
Single Cells ◽  
Rrna Gene ◽  
Qinghai Province ◽  
Gram Staining

Two mesophilic methanogenic strains, designated TS-2T and GHT, were isolated from sediments of Tuosu lake and Gahai lake, respectively, in the Qaidam basin, Qinghai province, China. Cells of both isolates were rods (about 0.3–0.5×2–5 µm) with blunt rounded ends and Gram-staining-positive. Strain TS-2T was motile with one or two polar flagella and used only H2/CO2 for growth and methanogenesis. Strain GHT was non-motile, used both H2/CO2 and formate and displayed a variable cell arrangement depending on the substrate: long chains when growing in formate (50 mM) or under high pressure H2 and single cells under low pressure H2. Phylogenetic analysis based on 16S rRNA gene sequences placed the two isolates in the genus Methanobacterium. Strain TS-2T was most closely related to Methanobacterium alcaliphilum NBRC 105226T (96 % 16S rRNA gene sequence similarity). Phylogenetic analysis based on the alpha subunit of methyl-coenzyme M reductase also supported the affiliation of the two isolates with the genus Methanobacterium. DNA–DNA relatedness between the isolates and M. alcaliphilum DSM 3387T was 39–53 %. Hence we propose two novel species, Methanobacterium movens sp. nov. (type strain TS-2T = AS 1.5093T = JCM 15415T) and Methanobacterium flexile sp. nov. (type strain GHT = AS 1.5092T = JCM 15416T).

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