Dissulfuribacter thermophilus gen. nov., sp. nov., a thermophilic, autotrophic, sulfur-disproportionating, deeply branching deltaproteobacterium from a deep-sea hydrothermal vent

2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 1967-1971 ◽  
Author(s):  
A. I. Slobodkin ◽  
A.-L. Reysenbach ◽  
G. B. Slobodkina ◽  
T. V. Kolganova ◽  
N. A. Kostrikina ◽  
...  
Keyword(s):  
Energy Source ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Elemental Sulfur ◽  
Phylogenetic Analyses ◽  
Spreading Center ◽  
Rrna Gene ◽  
Content Type ◽  
Physiological Properties ◽  
Ph Range

A thermophilic, anaerobic, chemolithoautotrophic bacterium (strain S69T) was isolated from a deep-sea hydrothermal vent chimney located on the Eastern Lau Spreading Center and Valu Fa Ridge, Pacific Ocean, at a depth of 1910 m using anoxic medium with elemental sulfur as the only energy source. Cells of strain S69T were Gram-negative short rods, 0.4–0.6 µm in diameter and 1.0–2.5 µm in length, motile with a single polar flagellum. The temperature range for growth was 28–70 °C, with an optimum at 61 °C. The pH range for growth was 5.6–7.9, with optimum growth at pH 6.8. Growth of strain S69T was observed at NaCl concentrations ranging from 0.9 to 5.0 %, with an optimum at 1.8–2.7 (w/v). Strain S69T grew anaerobically with elemental sulfur as an energy source and bicarbonate/CO2 as a carbon source. Elemental sulfur was disproportionated to sulfide and sulfate. Growth was enhanced in the presence of poorly crystalline Fe(III) oxide (ferrihydrite) as a sulfide-scavenging agent. Strain S69T was also able to grow by disproportionation of thiosulfate and sulfite. Sulfate was not used as an electron acceptor either with H2 or with organic electron donors. Analysis of the 16S rRNA gene sequence revealed that the isolate formed a distinct phylogenetic branch within the Deltaproteobacteria . On the basis of its physiological properties and results of phylogenetic analyses, strain S69T is considered to represent a novel species of a new genus, for which the name Dissulfuribacter thermophilus gen. nov., sp. nov. is proposed. The type strain of Dissulfuribacter thermophilus is S69T ( = DSM 25762T = VKM B-2760T).

Thermosulfurimonas dismutans gen. nov., sp. nov., an extremely thermophilic sulfur-disproportionating bacterium from a deep-sea hydrothermal vent

2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2565-2571 ◽  
Author(s):  
A. I. Slobodkin ◽  
A.-L. Reysenbach ◽  
G. B. Slobodkina ◽  
R. V. Baslerov ◽  
N. A. Kostrikina ◽  
...  
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
Elemental Sulfur ◽  
Phylogenetic Analyses ◽  
Spreading Center ◽  
Rrna Gene ◽  
Content Type ◽  
Physiological Properties ◽  
Bacterium Strain ◽  
Ph Range

An extremely thermophilic, anaerobic, chemolithoautotrophic bacterium (strain S95T) was isolated from a deep-sea hydrothermal vent chimney located on the Eastern Lau Spreading Center, Pacific Ocean, at a depth of 1910 m. Cells of strain S95T were oval to short Gram-negative rods, 0.5–0.6 µm in diameter and 1.0–1.5 µm in length, growing singly or in pairs. Cells were motile with a single polar flagellum. The temperature range for growth was 50–92 °C, with an optimum at 74 °C. The pH range for growth was 5.5–8.0, with an optimum at pH 7.0. Growth of strain S95T was observed at NaCl concentrations ranging from 1.5 to 3.5 % (w/v). Strain S95T grew anaerobically with elemental sulfur as an energy source and bicarbonate/CO2 as a carbon source. Elemental sulfur was disproportionated to sulfide and sulfate. Growth was enhanced in the presence of poorly crystalline iron(III) oxide (ferrihydrite) as a sulfide-scavenging agent. Strain S95T was also able to grow by disproportionation of thiosulfate and sulfite. Sulfate was not used as an electron acceptor. Analysis of the 16S rRNA gene sequence revealed that the isolate belongs to the phylum Thermodesulfobacteria . On the basis of its physiological properties and results of phylogenetic analyses, it is proposed that the isolate represents the sole species of a new genus, Thermosulfurimonas dismutans gen. nov., sp. nov.; S95T ( = DSM 24515T = VKM B-2683T) is the type strain of the type species. This is the first description of a thermophilic micro-organism that disproportionates elemental sulfur.

Deferrisoma camini gen. nov., sp. nov., a moderately thermophilic, dissimilatory iron(III)-reducing bacterium from a deep-sea hydrothermal vent that forms a distinct phylogenetic branch in the Deltaproteobacteria

2012 ◽  
Vol 62 (Pt_10) ◽  
pp. 2463-2468 ◽  
Author(s):  
G. B. Slobodkina ◽  
A.-L. Reysenbach ◽  
A. N. Panteleeva ◽  
N. A. Kostrikina ◽  
I. D. Wagner ◽  
...  
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Electron Donors ◽  
Rrna Gene ◽  
Content Type ◽  
Moderately Thermophilic ◽  
Link Type ◽  
Ph Range

A moderately thermophilic, anaerobic, dissimilatory iron(III)-reducing bacterium (strain S3R1T) was isolated from a deep-sea hydrothermal vent chimney located on the Eastern Lau Spreading Centre in the Pacific Ocean at a depth of about 2150 m. Cells of strain S3R1T were ovals to short rods with a single polar flagellum, Gram-stain-negative, 0.5–0.6 µm in diameter and 0.8–1.3 µm long, growing singly or in pairs. The temperature range for growth was 36–62 °C, with an optimum at 50 °C. The pH range for growth was 5.5–7.5, with an optimum at pH 6.5. Growth of strain S3R1T was observed at NaCl concentrations ranging from 1.0 to 5.0 % (w/v), with an optimum at 2.0–2.5 % (w/v). The isolate used acetate, fumarate, malate, maleinate, succinate, propanol, palmitate, stearate, peptone and yeast extract as electron donors for growth and iron(III) reduction. All electron donors were oxidized completely to CO2 and H2O. Iron(III) (in the form of ferrihydrite, ferric citrate or ferric nitrilotriacetate) and elemental sulfur (S0) were the electron acceptors that supported growth. The DNA G+C content was 64.4 mol%. Results of 16S rRNA gene sequence analysis showed that the novel bacterium was related to representatives of the orders Desulfuromonadales and Syntrophobacterales with 84–86 % sequence similarity and formed a distinct phylogenetic branch in the Deltaproteobacteria . On the basis of its physiological properties and results of phylogenetic analyses, it is proposed that the new isolate represents the sole species of a novel genus, Deferrisoma camini gen. nov., sp. nov. The type strain of Deferrisoma camini is S3R1T ( = DSM 24185T  = VKM B-2672T).

Palaeococcus pacificus sp. nov., an archaeon from deep-sea hydrothermal sediment

2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2155-2159 ◽  
Author(s):  
Xiang Zeng ◽  
Xiaobo Zhang ◽  
Lijing Jiang ◽  
Karine Alain ◽  
Mohamed Jebbar ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Elemental Sulfur ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Strictly Anaerobic ◽  
Content Type ◽  
Physiological Properties ◽  
Casamino Acids ◽  
Gene Similarity

A hyperthermophilic, anaerobic, piezophilic archaeon (strain DY20341T) was isolated from a sediment sample collected from an East Pacific Ocean hydrothermal field (1° 37′ S 102° 45′ W) at a depth of 2737 m. The cells were irregular cocci, 0.8–1.5 µm in diameter. Growth was observed between 50 and 90 °C (optimum 80 °C), pH 5.0 and 8.0 (optimum pH 7.0), 1 % and 7 % (w/v) sea salts (Sigma, optimum 3 %), 1 % and 4 % (w/v) NaCl (optimum 3 %) and 0.1 and 80 MPa (optimum 30 MPa). The minimum doubling time was 66 min at 30 MPa and 80 °C. The isolate was an obligate chemoorganoheterotroph, capable of utilizing complex organic compounds and organic acids including yeast extract, peptone, tryptone, casein, starch, Casamino acids, citrate, lactate, acetate, fumarate, propanoate and pyruvate for growth. It was strictly anaerobic and facultatively dependent on elemental sulfur or sulfate as electron acceptors, but did not reduce sulfite, thiosulfate, Fe(III) or nitrate. The presence of elemental sulfur enhanced growth. The G+C content of the genomic DNA was 43.6±1 mol%. 16S rRNA gene sequence analysis revealed that the closest relative of the isolated organism was Palaeococcus ferrophilus DMJT (95.7 % 16S rRNA gene similarity). On the basis of its physiological properties and phylogenetic analyses, the isolate is considered to represent a novel species, for which the name Palaeococcus pacificus sp. nov. is proposed. The type strain is strain DY20341T ( = JCM 17873T = DSM 24777T).

scholarly journals Defluviimonas indica sp. nov., a marine bacterium isolated from a deep-sea hydrothermal vent environment

2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 2084-2088 ◽  
Author(s):  
Lijing Jiang ◽  
Hongxiu Xu ◽  
Zongze Shao ◽  
Minnan Long
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
Type Species ◽  
Marine Bacterium ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Content Type ◽  
Link Type

A Gram-stain-negative, strictly aerobic, chemoheterotrophic marine bacterium, designated 20V17T, was isolated from a deep-sea hydrothermal vent chimney collected from the South-west Indian Ridge. Cells of strain 20V17T were motile, short rods, 1.2–1.8 µm in length and 0.5–0.7 µm in width. Growth was observed at between 20 and 37 °C (optimum 25 °C–28 °C), pH 5.0 and 8.0 (optimum pH 7.0) and 0.5 and 8 % (w/v) NaCl (optimum 1.5–2.0 % NaCl). The major fatty acids were C18 : 1ω7c (74.4 %), C19 : 0 cyclo ω8c (11 %), C18 : 0 (5.1 %) and C18 : 0 3-OH (2.8 %), and the polar lipid profile comprised diphosphatidylglycerol, phosphatidylethanolamine, an unidentified glycolipid and four unidentified phospholipids. Ubiquinone 10 was the major quinone. The G+C content of genomic DNA was 66.3 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain 20V17T belonged to the genus Defluviimonas and shared 96.5 and 96.1 % sequence similarity with Defluviimonas denitrificans D9-3T and Defluviimonas aestuarii BS14T, respectively. On the basis of the taxonomic data obtained in this study, strain 20V17T represents a novel species of the genus Defluviimonas , for which the name Defluviimonas indica sp. nov. is proposed. The type strain is 20V17T (CGMCC 1.10859T = JCM 17871T = MCCC 1A01802T).

Mesoaciditoga lauensis gen. nov., sp. nov., a moderately thermoacidophilic member of the order Thermotogales from a deep-sea hydrothermal vent

2013 ◽  
Vol 63 (Pt_12) ◽  
pp. 4724-4729 ◽  
Author(s):  
Anna-Louise Reysenbach ◽  
Yitai Liu ◽  
Annie R. Lindgren ◽  
Isaac D. Wagner ◽  
Christine D. Sislak ◽  
...  
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
New Genus ◽  
Heterotrophic Bacterium ◽  
Spreading Center ◽  
Rrna Gene ◽  
Content Type ◽  
Moderately Thermophilic ◽  
Optimum Ph ◽  
The 16S Rrna Gene

A novel moderately thermophilic, heterotrophic bacterium was isolated from a deep-sea hydrothermal vent deposit from the Mariner field along the Eastern Lau Spreading Center of the south-western Pacific Ocean. Cells were short motile rods (about 0.4×0.8 µm) that occurred singly or in pairs and were surrounded by a sheath-like membrane or ‘toga’. The cells grew between 45 and 65 °C (optimum 57–60 °C) and at pH 4.1–6.0 (optimum pH 5.5–5.7) and grew optimally at 3 % (w/v) NaCl. The isolate grew on a range of carbon and proteinaceous substrates and reduced sulfur. The G+C content of the DNA was about 45 mol%. Phylogenetic analysis of the 16S rRNA gene sequence placed the new isolate as a deeply diverging lineage within the order Thermotogales . Based on the physiological, morphological and phylogenetic data, the isolate represents a novel species of a new genus with the proposed name Mesoaciditoga lauensis gen. nov., sp. nov. The type strain of Mesoaciditoga lauensis is cd-1655RT ( = DSM 25116T = OCM 1212T).

Sulfurovum indicum sp. nov., a novel hydrogen- and sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal plume in the Northwestern Indian Ocean

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Shaobin Xie ◽  
Shasha Wang ◽  
Dengfeng Li ◽  
Zongze Shao ◽  
Qiliang Lai ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Deep Sea ◽  
Type Species ◽  
Elemental Sulfur ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Phenotypic Data ◽  
Content Type ◽  
Link Type ◽  
Sulfur Oxidizing

A novel mesophilic, hydrogen-, and sulfur-oxidizing bacterium, designated strain ST-419T, was isolated from a deep-sea hydrothermal vent plume on the Carlsberg Ridge of the Northwestern Indian Ocean. The isolate was a Gram-staining-negative, non-motile and coccoid to oval-shaped bacterium. Growth was observed at 4–50 °C (optimum 37 °C), pH 5.0–8.6 (optimum pH 6.0) and 1.0–5.0 % (w/v) NaCl (optimum 3.0 %). ST-419T could grow chemlithoautotrophically with molecular hydrogen, sulfide, elemental sulfur and thiosulfate as energy sources. Molecular oxygen, nitrate and elemental sulfur could be used as electron acceptors. The predominant fatty acids were C16 : 1ω7c, C18 : 1ω7c and C16 : 0. The major polar lipids were phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylglycerol. The respiratory quinone was menaquinone MK-6 and the G+C content of the genomic DNA was 42.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that ST-419T represented a member of genus Sulfurovum and was most closely related to Sulfurovum riftiae 1812ET, with 97.6 % sequence similarity. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between ST-419T and S. riftiae 1812ET were 74.6 and 19.6 %, respectively. The combined genotypic and phenotypic data indicate that ST-419T represents a novel species within the genus Sulfurovum , for which the name Sulfurovum indicum sp. nov. is proposed. The type strain is ST-419T (=MCCC 1A17954T=KCTC 25164T).

scholarly journals Thiobacimonas profunda gen. nov., sp. nov., a member of the family Rhodobacteraceae isolated from deep-sea water

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 359-364 ◽  
Author(s):  
Shuhui Li ◽  
Kai Tang ◽  
Keshao Liu ◽  
Nianzhi Jiao
Keyword(s):  
Deep Sea ◽  
Sea Water ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Content Type ◽  
Deep Sea Water ◽  
Link Type ◽  
Novel Genus And Species ◽  
Family Rhodobacteraceae

A bacterial strain, JLT2016T, was isolated from a sample of South-eastern Pacific deep-sea water. Cells were Gram-stain-negative, aerobic, devoid of flagella, motile by gliding and rod-shaped. Colonies were mucoid and cream. Growth occurred at 1.0–11.0 % (w/v) NaCl, 10–40 °C and pH 4.0–9.0. The major fatty acids were summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) (60.5 %), C19 : 0 cyclo ω8c (10.9 %) and C16 : 0 (9.0 %). The polar lipids included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and two sphingoglycolipids. The DNA G+C content was 67.1 mol%. The closest relative of strain JLT2016T was Salipiger mucosus A3T (96.7 % 16S rRNA gene sequence similarity). The results of phylogenetic analyses with different treeing algorithms indicated that this strain belonged to the Roseobacter clade in the order Rhodobacterales . Based on polyphasic analysis, strain JLT2016T is considered to represent a novel genus and species, for which the name Thiobacimonas profunda gen. nov., sp. nov. is proposed. The type strain is JLT2016T ( = LMG 27365T = CGMCC 1.12377T).

Sulfobacillus thermotolerans sp. nov., a thermotolerant, chemolithotrophic bacterium

2006 ◽  
Vol 56 (5) ◽  
pp. 1039-1042 ◽  
Author(s):  
Tat'yana I. Bogdanova ◽  
Iraida A. Tsaplina ◽  
Tamara F. Kondrat'eva ◽  
Vitalii I. Duda ◽  
Natalya E. Suzina ◽  
...  
Keyword(s):  
Ferrous Iron ◽  
Phylogenetic Analyses ◽  
Bootstrap Support ◽  
Rrna Gene ◽  
Organic Substrates ◽  
Physiological Properties ◽  
Dna Reassociation ◽  
Bacterium Strain ◽  
Ph Range ◽  
High Degree

A thermotolerant, Gram-positive, aerobic, endospore-forming, acidophilic bacterium (strain Kr1T) was isolated from the pulp of a gold-containing sulfide concentrate processed at 40 °C in a gold-recovery plant (Siberia). Cells of strain Kr1T were straight to slightly curved rods, 0.8–1.2 μm in diameter and 1.5–4.5 μm in length. Strain Kr1T formed spherical and oval, refractile, subterminally located endospores. The temperature range for growth was 20–60 °C, with an optimum at 40 °C. The pH range for growth on medium containing ferrous iron was 1.2–2.4, with an optimum at pH 2.0; the pH range for growth on medium containing S0 was 2.0–5.0, with an optimum at pH 2.5. Strain Kr1T was mixotrophic, oxidizing ferrous iron, S0, tetrathionate or sulfide minerals as energy sources in the presence of 0.02 % yeast extract or other organic substrates. The G+C content of the DNA of strain Kr1T was 48.2±0.5 mol%. Strain Kr1T showed a low level of DNA–DNA reassociation with the known Sulfobacillus species (11–44 %). 16S rRNA gene sequence analysis revealed that Kr1T formed a separate phylogenetic group with a high degree of similarity between the nucleotide sequences (98.3–99.6 %) and 100 % bootstrap support within the phylogenetic Sulfobacillus cluster. On the basis of its physiological properties and the results of phylogenetic analyses, strain Kr1T can be affiliated to a novel species of the genus Sulfobacillus, for which the name Sulfobacillus thermotolerans sp. nov. is proposed. The type strain is Kr1T (=VKM B-2339T=DSM 17362T).

scholarly journals Carboxydocella manganica sp. nov., a thermophilic, dissimilatory Mn(IV)- and Fe(III)-reducing bacterium from a Kamchatka hot spring

2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 890-894 ◽  
Author(s):  
G. B. Slobodkina ◽  
A. N. Panteleeva ◽  
T. G. Sokolova ◽  
E. A. Bonch-Osmolovskaya ◽  
A. I. Slobodkin
Keyword(s):  
Hot Spring ◽  
Phylogenetic Analyses ◽  
Optimal Growth ◽  
Kamchatka Peninsula ◽  
Growth Conditions ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Physiological Properties ◽  
Bacterium Strain

A thermophilic, anaerobic, dissimilatory Mn(IV)- and Fe(III)-reducing bacterium (strain SLM 61T) was isolated from a terrestrial hot spring on the Kamchatka peninsula. The cells were straight rods, 0.5–0.6 µm in diameter and 1.0–6.0 µm long, and exhibited tumbling motility by means of peritrichous flagellation. The strain grew at 26–70 °C, with an optimum at 58–60 °C, and at pH 5.5–8.0, with an optimum at pH 6.5. Growth of SLM 61T was observed at 0–2.0 % (w/v) NaCl, with an optimum at 0.5 % (w/v). The generation time under optimal growth conditions was 40 min. Strain SLM 61T grew and reduced Mn(IV), Fe(III) or nitrate with a number of organic acids and complex proteinaceous compounds as electron donors. It was capable of chemolithoautotrophic growth using molecular hydrogen as an electron donor, Fe(III) but not Mn(IV) or nitrate as an electron acceptor and CO2 as a carbon source. It also was able to ferment pyruvate, yeast extract, glucose, fructose, sucrose and maltose. The G+C content of DNA of strain SLM 61T was 50.9 mol%. 16S rRNA gene sequence analysis revealed that the closest relative of the isolated organism was Carboxydocella thermautotrophica 41T (96.9 % similarity). On the basis of its physiological properties and phylogenetic analyses, the isolate is considered to represent a novel species, for which the name Carboxydocella manganica sp. nov. is proposed. The type strain is SLM 61T ( = DSM 23132T  = VKM B-2609T). C. manganica is the first described representative of the genus Carboxydocella that possesses the ability to reduce metals and does not utilize CO.

scholarly journals Hippea jasoniae sp. nov. and Hippea alviniae sp. nov., thermoacidophilic members of the class Deltaproteobacteria isolated from deep-sea hydrothermal vent deposits

2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1252-1258 ◽  
Author(s):  
Gilberto E. Flores ◽  
Ryan C. Hunter ◽  
Yitai Liu ◽  
Anchelique Mets ◽  
Stefan Schouten ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Type Strain ◽  
Type Species ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

Thirteen novel, obligately anaerobic, thermoacidophilic bacteria were isolated from deep-sea hydrothermal vent sites. Four of the strains, designated EP5-rT, KM1, Mar08-272rT and Mar08-368r, were selected for metabolic and physiological characterization. With the exception of strain EP5-rT, all strains were short rods that grew between 40 and 72 °C, with optimal growth at 60–65 °C. Strain EP5-rT was more ovoid in shape and grew between 45 and 75 °C, with optimum growth at 60 °C. The pH range for growth of all the isolates was between pH 3.5 and 5.5 (optimum pH 4.5 to 5.0). Strain Mar08-272rT could only grow up to pH 5.0. Elemental sulfur was required for heterotrophic growth on acetate, succinate, Casamino acids and yeast extract. Strains EP5-rT, Mar08-272rT and Mar08-368r could also use fumarate, while strains EP5-rT, KM1 and Mar08-272rT could also use propionate. All isolates were able to grow chemolithotrophically on H2, CO2, sulfur and vitamins. Phylogenetic analysis of 16S rRNA gene sequences placed all isolates within the family Desulfurellaceae of the class Deltaproteobacteria , with the closest cultured relative being Hippea maritima MH2 T (~95–98 % gene sequence similarity). Phylogenetic analysis also identified several isolates with at least one intervening sequence within the 16S rRNA gene. The genomic DNA G+C contents of strains EP5-rT, KM1, Mar08-272rT and Mar08-368r were 37.1, 42.0, 35.6 and 37.9 mol%, respectively. The new isolates differed most significantly from H. maritima MH2 T in their phylogenetic placement and in that they were obligate thermoacidophiles. Based on these phylogenetic and phenotypic properties, the following two novel species are proposed: Hippea jasoniae sp. nov. (type strain Mar08-272rT = DSM 24585T = OCM 985T) and Hippea alviniae sp. nov. (type strain EP5-rT = DSM 24586T = OCM 986T).

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