- Volume 53, Issue 5, 2003
Volume 53, Issue 5, 2003
- New Taxa
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- Gram-Positive Bacteria
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Brevibacterium lutescens sp. nov., from human and environmental samples
Three strains of coryneform rods isolated from clinical samples and one of environmental origin exhibited phenotypic and chemotaxonomic properties characteristic of the genus Brevibacterium and their 16S rRNA gene sequences were closely related (98·5–99·0 %) to that of Brevibacterium otitidis. However, DNA–DNA hybridization of one strain (CF87T) showed only 59·6 % relatedness to the type strain of B. otitidis, DSM 10718T, and 75–82 % relatedness to the three other strains. The four strains could be differentiated from B. otitidis by cellular fatty acid composition and some phenotypic characteristics. These findings suggest that the four strains belong to a novel species, for which the name Brevibacterium lutescens sp. nov. is proposed. The type strain of B. lutescens is CF87T (=DSM 15022T=CCUG 46604T).
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Rhodococcus tukisamuensis sp. nov., isolated from soil
More LessA novel strictly aerobic, heterotrophic, mesophilic bacterium, strain Mb8T, was isolated from soil in Sapporo City, Hokkaido, Japan. The G+C content of strain Mb8T was 66·0 mol%. It had mycolic acids with 44–52 carbon atoms and C16 : 0 and C18 : 1 (9) as the major fatty acids. The major isoprenoid quinone was MK-8(H2). The cell wall contained meso-diaminopimelic acid, arabinose and galactose. 16S rDNA, chemotaxonomic and morphological data indicated that this strain clearly belonged to the genus Rhodococcus. Based on phenotypic properties and DNA–DNA hybridization data, strain Mb8T (=JCM 11308T=NCIMB 13903T) has been assigned to the genus Rhodococcus as the type strain of Rhodococcus tukisamuensis sp. nov.
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Sporosarcina macmurdoensis sp. nov., from a cyanobacterial mat sample from a pond in the McMurdo Dry Valleys, Antarctica
More LessStrain CMS 21wT was isolated from a cyanobacterial mat sample taken from a pond located in the McMurdo Dry Valleys, Antarctica. Based on its phenotypic, chemotaxonomic and phylogenetic properties, strain CMS 21wT was identified as a member of the genus Sporosarcina. At the 16S rRNA gene level, CMS 21wT exhibited about 93–96 % similarity to all reported species of Sporosarcina and exhibited a maximum similarity of 96 % to both Sporosarcina globispora and Sporosarcina psychrophila. Based on more than 3 % difference at the 16S rRNA gene sequence level and the presence of distinct differences with respect to phenotypic, biochemical and chemotaxonomic features, strain CMS 21wT (=MTCC 4670T=DSM 15428T=CIP 107784T) is proposed as the type strain of a novel species of Sporosarcina, Sporosarcina macmurdoensis sp. nov.
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Paenibacillus stellifer sp. nov., a cyclodextrin-producing species isolated from paperboard
The microflora isolated from food-packaging board is dominated by paenibacilli; a number of these micro-organisms have been characterized using a polyphasic approach. The highest 16S rRNA gene similarity was found between these isolates and Paenibacillus azotofixans ATCC 35681T (97·7 %). The main fatty acid of the paperboard isolates was C16 : 0 (34–45 %); straight-chain fatty acids made up 41–60 % of the total cellular fatty acids, thus distinguishing these strains from other Paenibacillus species. The paperboard isolates produced cyclodextrins from starch. The spore surface had a characteristic ribbed ornamentation. Spores and vegetative cells frequently had pilus-like appendages. Based on phylogenetic data and phenotypic and chemotaxonomic characteristics, it is proposed that the isolates represent a novel species, Paenibacillus stellifer sp. nov., with IS 1T (=DSM 14472T=CCUG 45566T) as the type strain.
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Sporomusa aerivorans sp. nov., an oxygen-reducing homoacetogenic bacterium from the gut of a soil-feeding termite
More LessPreviously undescribed, homoacetogenic bacteria were isolated from gut homogenates of the soil-feeding termite Thoracotermes macrothorax. The isolates were slightly curved, banana-shaped rods (0·6–0·7×1·3–7·0 μm) and were motile by one or more lateral flagella. In older cultures, cells formed club-like sporangia that developed into terminal, heat-resistant endospores. Cells stained Gram-positive but were Gram-negative in the KOH test. The isolates were mesophilic and grew homoacetogenically on H2/CO2 and l-lactate. Strain TmAO3T, which was characterized further, also grew homoacetogenically on pyruvate, citrate, l-alanine, d-mannitol, ethanol, formate and methanol. Succinate was decarboxylated to propionate; fumarate, l-malate and oxaloacetate were fermented to propionate and acetate. Hexoses were not used as substrates. Resting cells had a large capacity for hydrogen-dependent oxygen reduction [826 nmol min−1 (mg protein)−1], which enabled them to initiate growth in non-reduced basal medium that originally contained up to 1·5 kPa oxygen in the headspace, although growth commenced only after the medium had been rendered anoxic. Redox difference spectra of cell extracts indicated the presence of membrane-bound b-type cytochrome(s). Comparative 16S rRNA gene sequence analysis revealed that strain TmAO3T belongs to a subgroup of the phylum of Gram-positive bacteria that is characterized by low DNA G+C content and a Gram-negative cell wall. It is related most closely to representatives of the genus Sporomusa. Based on morphological and physiological properties and on 16S rRNA gene sequence similarity of 94–97 % to other Sporomusa species, the isolates are assigned to Sporomusa aerivorans sp. nov. (type strain, TmAO3T=DSM 13326T=ATCC BAA-625T).
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Streptomonospora alba sp. nov., a novel halophilic actinomycete, and emended description of the genus Streptomonospora Cui et al. 2001
A halophilic actinomycete, strain YIM 90003T, was isolated from a soil sample collected from Xinjiang Province, China, by using starch-casein agar with a salt concentration of 20 % (w/v), pH 7·0. The strain grew well on most media tested. No diffusible pigment was produced. Aerial mycelium and substrate mycelium were well developed on most media. The aerial mycelium formed short spore chains, bearing non-motile, straight to flexuous spores with wrinkled surfaces. The cell walls of strain YIM 90003T contained meso-diaminopimelic acid as the diagnostic diamino acid. Cell-wall hydrolysates contained galactose and arabinose. Menaquinone composition varied with the medium used for cell cultivation; on glucose-yeast extract medium supplemented with 10 % NaCl, the major menaquinone was MK-9(H4), while, on vitamin-enriched ISP 2 medium, the major menaquinones were MK-10(H2), MK-9(H8) and MK-10(H4). Phospholipids were phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, diphosphatidyl glycerol, methylphosphatidylethanolamine, phosphatidylserine, phosphatidylcholine and an unidentified phospholipid. 16S rRNA gene sequence analysis showed Streptomonospora salina as the closest phylogenetic neighbour. On the basis of these analyses, strain YIM 90003T is a member of the genus Streptomonospora, though its properties do not match the generic description fully with respect to the menaquinone composition and peptidoglycan amino acid. Analyses of mechanically disrupted cell walls of the type species, Streptomonospora salina DSM 44593T, and strain YIM 90003T, purified by tryptic digestion and subsequent SDS treatment, revealed the exclusive presence of meso-diaminopimelic acid as the diagnostic diamino acid of peptidoglycan. Thus, the genus description of Streptomonospora, indicating the presence of several amino acids usually not found in the peptidoglycan moiety, is therefore emended. DNA–DNA hybridization and comparison of physiological and chemotaxonomic characteristics demonstrated strain YIM 90003T to be different from Streptomonospora salina. The name Streptomonospora alba sp. nov. is proposed, with strain YIM 90003T (=CCTCC AA001013T=DSM 44588T) as the type strain.
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Gordonia sihwensis sp. nov., a novel nitrate-reducing bacterium isolated from a wastewater-treatment bioreactor
More LessA nitrate-reducing bacterium, strain SPR2T, was isolated from a sulphur-oxidizing, autotrophic denitrification reactor used for advanced treatment of wastewater from the lake of Sihwa, Korea. The strain was aerobic but could grow under anaerobic conditions. It was Gram-positive, exhibited rough white colonies on complex nutrient agar, produced elementary branching hyphae that fragmented into rod/coccus-like elements and showed chemotaxonomic markers that were consistent with classification in the genus Gordonia, i.e. meso-diaminopimelic acid, arabinose and galactose in whole-cell hydrolysates, N-glycolylmuramic acid in the peptidoglycan wall, unbranched saturated and monounsaturated fatty acids plus tuberculostearic acid (TBSA), mycolic acids that comprised 48–56 carbon atoms and MK-9(H2) as the predominant menaquinone. The 16S rDNA sequence of strain SPR2T showed highest similarity to Gordonia amicalis DSM 44461T and Gordonia hydrophobica DSM 44015T, with values of 98·2 and 97·9 %, respectively. These values were far below 99·5 % (usually found at the intraspecies level) and they were in the range that separates species at the intrageneric level. The separate phylogenetic position of SPR2T was supported by differences in fatty acid and mycolic acid compositions and in carbon utilization tests that distinguished strain SPR2T from all known Gordonia species. Combined genotypic and phenotypic data show that strain SPR2T merits recognition as a novel species within the genus Gordonia, for which the name Gordonia sihwensis sp. nov. is proposed; the type strain is SPR2T (=DSM 44576T=NRRL B-24155T).
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Agromyces albus sp. nov., isolated from a plant (Androsace sp.)
More LessAgromyces albus sp. nov. is proposed for an aerobic, oxidase- and catalase-positive actinomycete that was isolated from the above-ground part of a plant (Androsace sp., in the family Primulaceae). The strain is characterized by white colonies, fragmenting hyphae that penetrate into agar media and chemotaxonomic properties that are typical of the genus Agromyces. Analysis of 16S rDNA sequences confirmed that the strain belongs to the genus Agromyces and revealed its close phylogenetic relationship with Agromyces ramosus. DNA–DNA pairing studies showed that the strain belongs to a separate genomic species; this is consistent with its distinction from other Agromyces species at the phenotypic level. The G+C content of the DNA was 69·0 mol%. The type strain is VKM Ac-1800T (=UCM Ac-623T).
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Reclassification of Desulfotomaculum auripigmentum as Desulfosporosinus auripigmenti corrig., comb. nov.
More LessThe species Desulfotomaculum auripigmentum is reclassified as Desulfosporosinus auripigmenti corrig., comb. nov. on the basis of morphological and physiological traits, phylogenetic position and chemotaxonomic properties. Characteristics supplementary to those provided in the original description reveal that the type strain, DSM 13351T (=ATCC 700205T), forms oval, subterminal to terminal spores, possesses ll-diaminopimelic acid and contains MK-7 as the predominant menaquinone, while the whole-cell methanolysate contains even-carbon, straight-chain saturated and mono-unsaturated fatty acids and 1,1-dimethylacetals as major components. DNA–DNA reassociation values below 30 % for Desulfosporosinus orientis DSM 765T and Desulfosporosinus meridiei DSM 13257T demonstrate that strain DSM 13351T shows sufficient genomic differences to maintain its species status. Lack of motility, a smaller cell diameter and the ability to use malate and glycerol as electron donors and fumarate and arsenate as electron acceptors are the main properties that differentiate Desulfosporosinus auripigmenti from the other two species of the genus.
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Actinomyces nasicola sp. nov., isolated from a human nose
More LessA previously undescribed facultatively anaerobic, catalase-negative, Actinomyces-like bacterium was isolated from the nose of a human. On the basis of its cellular morphology and the results of biochemical testing, the micro-organism was tentatively identified as a member of the genus Actinomyces, but it did not correspond to any currently recognized species. Comparative 16S rRNA gene sequencing studies showed the bacterium to be a hitherto unknown subline within the genus Actinomyces, displaying sequence divergence values of more than 6 % with respect to recognized species of the genus. On the basis of biochemical, molecular chemical and molecular phylogenetic evidence, it is proposed that the unknown organism, strain R2014T (=CCUG 46092T=CIP 107668T), be classified as the type strain of a novel species, Actinomyces nasicola sp. nov.
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Promicromonospora vindobonensis sp. nov. and Promicromonospora aerolata sp. nov., isolated from the air in the medieval ‘Virgilkapelle’ in Vienna
Two airborne bacterial isolates designated V45T and V54AT were characterized in order to determine their taxonomic position. 16S rDNA sequence analysis showed that the two isolates shared 98·1 % sequence similarity. Highest sequence similarities (98·0–98·5 %) were found to Promicromonospora citrea DSM 43110T and Promicromonospora sukumoe IFO 14650T. Detection of a quinone system with the predominant compound MK-9(H4), a polar lipid pattern containing phosphatidylglycerol, a fatty acid profile with the predominant acids C15 : 0 iso and C15 : 0 anteiso and the diagnostic cell-wall diamino acid l-lysine supported the assignment of the novel isolates to the genus Promicromonospora. The two isolates could be distinguished from P. sukumoe by the presence of glycine in the peptidoglycan, and the detection of the cell-wall sugar galactose differentiates them from the two established species of the genus Promicromonospora. Each of the two isolates displayed a unique biochemical profile. Results from DNA–DNA hybridizations clearly demonstrated that V45T and V54AT represent separate species. Based on these data, it is proposed that V45T (=IFO 16525T=CCM 7044T) and V54AT (=IFO 16526T =CCM 7043T) be classified as the type strains of two novel Promicromonospora species, for which the names Promicromonospora vindobonensis sp. nov. and Promicromonospora aerolata sp. nov. are proposed.
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Garciella nitratireducens gen. nov., sp. nov., an anaerobic, thermophilic, nitrate- and thiosulfate-reducing bacterium isolated from an oilfield separator in the Gulf of Mexico
A novel Gram-positive, anaerobic and thermophilic bacterium, strain MET79T, was isolated from an oil well located in the Gulf of Mexico. Cells were straight rods, motile by a subpolar flagellum. Spores were formed in old cultures. Inner gas vacuoles swelled the cells when exposed to air. The optimum growth conditions were 55 °C, pH 7·5 and 1 % NaCl. Yeast extract was required for growth. Strain MET79T fermented several sugars, some organic acids and Casamino acids. Glucose was fermented into lactate, acetate, butyrate, H2 and CO2. Strain MET79T reduced thiosulfate to hydrogen sulfide and nitrate to ammonium. The DNA G+C content was 30·9 mol%. The closest phylogenetic relative of strain MET79T was Caloranaerobacter azorensis (88·7 % 16S rDNA sequence similarity). As strain MET79T (=DSM 15102T=CIP 107615T) was physiologically and phylogenetically different from its closest relatives, it is assigned as the type strain of a novel species of a new genus, Garciella nitratireducens gen. nov., sp. nov.
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Actinomyces oricola sp. nov., from a human dental abscess
A previously undescribed Actinomyces-like bacterium was isolated from a human dental abscess. Based on its cellular morphology and the results of biochemical testing the organism was tentatively identified as a member of the genus Actinomyces, but it did not correspond to any currently recognized species of this genus. Comparative 16S rRNA gene sequencing studies showed the bacterium represents a hitherto unknown subline within the genus Actinomyces, clustering within a group of species, which includes Actinomyces bovis, the type species of the genus. Based on biochemical and molecular phylogenetic evidence, it is proposed that the unknown organism recovered from a dental abscess be classified as a new species, Actinomyces oricola sp. nov. The type strain of Actinomyces oricola is R5292T (=CCUG 46090T=CIP 107639T).
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Taxonomic re-evaluation of whorl-forming Streptomyces (formerly Streptoverticillium) species by using phenotypes, DNA–DNA hybridization and sequences of gyrB, and proposal of Streptomyces luteireticuli (ex Katoh and Arai 1957) corrig., sp. nov., nom. rev.
More LessThe taxonomic status of 64 strains of whorl-forming Streptomyces (formerly Streptoverticillium) species was re-evaluated and strains were reclassified on the basis of their phenotypes, DNA–DNA hybridization data and partial sequences of gyrB, the structural gene of the B subunit of DNA gyrase. These strains, which consisted of 46 species and eight subspecies with validly published names and 13 species whose names have not been validly published [including 10 strains examined by the International Streptomyces Project (ISP)], were divided into two groups, namely typical and atypical whorl-forming Streptomyces species, based on their phenotypes and gyrB gene sequences. The typical whorl-forming species (59 strains) were divided into six major clusters of three or more species, seven minor clusters of two species and five single-member clusters, based on the threshold value of 97 % gyrB sequence similarity. Major clusters were typified by Streptomyces abikoensis, Streptomyces cinnamoneus, Streptomyces distallicus, Streptomyces griseocarneus, Streptomyces hiroshimensis and Streptomyces netropsis. Phenotypically, members of each cluster resembled each other closely except for the S. distallicus cluster, which was divided phenotypically into the S. distallicus and Streptomyces stramineus subclusters, and the S. netropsis cluster, which was divided into the S. netropsis and Streptomyces eurocidicus subclusters. Strains in each minor cluster closely resembled each other phenotypically. DNA–DNA relatedness between the representative species and others in each major cluster and/or subcluster, and between strains in the minor clusters, was >70 %, indicating that the major clusters and/or subclusters and the minor clusters each comprise a single species. It was concluded that 59 strains of typical whorl-forming Streptomyces species consisted of the following 18 species, including subjective synonym(s): S. abikoensis, Streptomyces ardus, Streptomyces blastmyceticus, S. cinnamoneus, S. eurocidicus, S. griseocarneus, S. hiroshimensis, Streptomyces lilacinus, ‘Streptomyces luteoreticuli’, Streptomyces luteosporeus, Streptomyces mashuensis, Streptomyces mobaraensis, Streptomyces morookaense, S. netropsis, Streptomyces orinoci, S. stramineus, Streptomyces thioluteus and Streptomyces viridiflavus.
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Bacillus krulwichiae sp. nov., a halotolerant obligate alkaliphile that utilizes benzoate and m-hydroxybenzoate
Obligate alkaliphilic strains, AM31DT and AM11D, that utilize benzoate and m-hydroxybenzoate were isolated from soil obtained from Tsukuba, Ibaraki, Japan. The isolates grew at pH 8–10, but not at neutral pH. They were Gram-positive, facultatively anaerobic, straight rods with peritrichous flagella and produced ellipsoidal spores. The isolates reduced nitrate to nitrite and grew in 0–14 % NaCl, but not in higher concentrations. The major isoprenoid quinones were menaquinone-5, -6 and -7, and the cellular fatty acid profile consisted of significant amounts of 15-C branched-chain acids, isoC15 : 0 and anteisoC15 : 0. Phylogenetic analysis based on 16S rRNA gene sequencing indicated that strain AM31DT was a member of group 6 (alkaliphiles) in the genus Bacillus. DNA–DNA hybridization revealed a low relatedness of the isolates with several phylogenetically close neighbours, including Bacillus alcalophilus and Bacillus pseudalcaliphilus (less than 19·3 %). Based on phenotypic characteristics, phylogenetic data and DNA–DNA relatedness data, it was concluded that these isolates merited classification as a new species, for which the name Bacillus krulwichiae is proposed. The type strain of this species is AM31DT (=NCIMB 13904T=JCM 11691T=IAM 15000T).
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Alicyclobacillus pomorum sp. nov., a novel thermo-acidophilic, endospore-forming bacterium that does not possess ω-alicyclic fatty acids, and emended description of the genus Alicyclobacillus
More LessA thermo-acidophilic endospore-forming bacterium was isolated from a mixed fruit juice. The organism, strain 3AT, was rod-shaped, grew aerobically at 30–60 °C (optimum 45–50 °C), pH 3·0–6·0 (optimum pH 4·0–4·5) and produced acid from various sugars. It contained menaquinone-7 as the major isoprenoid quinone. The G+C content of the DNA was 53·1 mol%. The predominant cellular fatty acids of the strain were iso-C15 : 0, anteiso-C15 : 0, iso-C16 : 0, iso-C17 : 0 and anteiso-C17 : 0, but ω-alicyclic fatty acids, which are characteristic of the genus Alicyclobacillus, were not found in the strain. Phylogenetic analyses based on both 16S rRNA and gyrB (DNA gyrase B subunit gene) gene sequences showed that strain 3AT falls into the Alicyclobacillus cluster, validated by significant bootstrap values. However, strain 3AT did not show a close relationship to the other species of the cluster. The level of 16S rDNA similarity between strain 3AT and other strains of the cluster was between 92·5 and 95·5 %. The level of gyrB sequence similarity between strain 3AT and other strains of the cluster was between 68·5 and 74·4 %. DNA–DNA hybridization values between strain 3AT and phylogenetically related strains of the genera Alicyclobacillus, Bacillus and Sulfobacillus were under 13 %, indicating that strain 3AT represents a distinct species. On the basis of these results, strain 3AT should be classified as a novel Alicyclobacillus species. The name Alicyclobacillus pomorum is proposed for this organism. The type strain of Alicyclobacillus pomorum is strain 3AT (=DSM 14955T=IAM 14988T).
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Prauserella halophila sp. nov. and Prauserella alba sp. nov., moderately halophilic actinomycetes from saline soil
The actinomycete strains YIM 90001T and YIM 90005T were isolated on starch-casein agar [20 % (w/v) NaCl, pH 7·0] from a soil sample collected from Xinjiang Province in the west of China. The two isolates were aerobic and Gram-positive. The substrate mycelium was fragmented and an aerial mycelium was well developed on Czapek medium. The aerial mycelium formed long spore chains with branched short or long spore chains at maturity, which were straight to flexuous, and spores were non-motile. Based on the results of metabolic, chemotaxonomic and molecular analyses, the two isolates were identified as two new species of the genus Prauserella, for which the names Prauserella halophila for strain YIM 90001T (=DSM 44617T=CCTCC AA001015T) and Prauserella alba for strain YIM 90005T (=DSM 44590T=CCTCC AA001016T) are proposed.
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Longispora albida gen. nov., sp. nov., a novel genus of the family Micromonosporaceae
More LessA novel actinomycete strain was isolated from a soil sample collected in Japan by using gellan gum as a solidifying agent. Spore-chains from the short sporophores were straight and each had more than 20 spores per chain. Spores possessed no motility. Cell-wall peptidoglycan contained meso-diaminopimelic acid, glycine, alanine and glutamic acid; whole-cell hydrolysates contained arabinose, galactose and xylose. The acyl type of the peptidoglycan was glycolyl. The predominant menaquinones were MK-10(H4) and MK-10(H6); MK-10(H8) was a minor component. Mycolic acids were not detected. The diagostic phospholipid was phosphatidylethanolamine. Cellular fatty acids included heptadecenoic (C17 : 1), 14-methylpentadecanoic (i-C16 : 0) and octadecenoic (C18 : 1) acids. The G+C content of the DNA was 70 mol%. On the basis of morphogical and chemotaxonomic properties and phylogenetic analysis based on 16S rDNA sequence data, it is proposed that this strain should be classified in a novel genus and species, Longispora albida gen. nov., sp. nov., in the family Micromonosporaceae. The type strain is K97-0003T (=NRRL B-24201T=JCM 11711T).
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Aerobic growth of Anoxybacillus pushchinoensis K1T: emended descriptions of A. pushchinoensis and the genus Anoxybacillus
More LessIn this work, corrections are made to the descriptions of the species Anoxybacillus pushchinoensis corrig. and the genus Anoxybacillus. Experiments to determine the relationship of A. pushchinoensis K1T to oxygen showed that it was capable of aerobic growth, but preferred to grow anaerobically. During aerobic growth, the redox indicator resazurin was reduced as a result of hydrogen gas production. The facultatively anaerobic nature of K1T was ascertained by cultivation in aerobic liquid medium, where growth began at the bottom of the tube. The anaerobic nature of K1T was also indicated by a negative catalase reaction. This work is submitted to correct the description of the species A. pushchinoensis from obligate anaerobe to aerotolerant anaerobe and to emend the description of the genus Anoxybacillus from obligate anaerobes or facultative anaerobes to aerotolerant anaerobes or facultative anaerobes.
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Saccharomonospora paurometabolica sp. nov., a moderately halophilic actinomycete isolated from soil in China
A novel, moderately halophilic actinomycete, strain YIM 90007T, was isolated from a soil sample collected from the Xinjiang Province, China, and characterized. The optimum growth temperature of the strain was between 35 and 37 °C and growth occurred optimally in 10 % (w/v) NaCl. The cell wall of strain YIM 90007T contained meso-diaminopimelic acid. Whole-cell sugars were galactose, arabinose and ribose. The principal menaquinone was MK-9(H4), while MK-9(H2) was found in smaller amounts. The phospholipids were phosphatidylinositol, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and hydroxyphosphatidylethanolamine. The predominant cellular fatty acids were of the iso- and anteiso-branched and unbranched types; significant amounts of 2-hydroxy fatty acids were also found but 10-methyl-branched fatty acids were missing. The DNA G+C content of strain YIM 900007T was 71 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed strain YIM 90007T to be closely related to Saccharomonospora halophila (98·7 % similarity). DNA–DNA hybridization revealed a relatedness of 53·8 % between strain YIM 90007T and S. halophila DSM 44411T. Based on physiological and biochemical characteristics, phylogenetic analysis (based on 16S rRNA gene sequences) and DNA–DNA relatedness, it is concluded that strain YIM 90007T represents a novel species of the genus Saccharomonospora, for which the name Saccharomonospora paurometabolica (type strain YIM 90007T=CCTCC AA001018T=CCRC 16315T=DSM 44619T) is proposed.
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