- Volume 57, Issue 6, 2007
Volume 57, Issue 6, 2007
- Obituary
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- Notification List
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Notification that new names and new combinations have appeared in volume 57, part 3, of the IJSEM
This listing of names published in a previous issue of the IJSEM is provided as a service to bacteriology to assist in the recognition of new names and new combinations. This procedure was proposed by the Judicial Commission [Minute 11(ii), Int J Syst Bacteriol 41 (1991), p. 185]. The names given herein are listed according to the Rules of priority (i.e. page number and order of valid publication of names in the original articles). Taxonomic opinions included in this List (i.e. the creation of synonyms or the emendation of circumscriptions) cannot be considered as validly published nor, in any other way, approved by the International Committee on Systematics of Prokaryotes and its Judicial Commission.
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- New Taxa
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- Actinobacteria
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Frondicola australicus gen. nov., sp. nov., isolated from decaying leaf litter from a pine forest
More LessAn aerobic bacterium, designated strain E1HC-02T, was isolated from the decaying leaf litter of a slash pine forest located in southeast Queensland, Australia. Cells of strain E1HC-02T were short irregular rods (0.5–1.0×0.2–0.4 μm) which stained Gram-positive and possessed a cell-wall ultrastructure which appeared to be made of protein subunits. The novel strain grew optimally in 1 % trypticase soy broth (TSB) at 25 °C and at a pH of 9.1. Strain E1HC-02T metabolized a range of carbohydrates, organic acids and amino acids. The G+C content of the DNA was 71±1 mol% as determined by the thermal denaturation method. 16S rRNA gene sequence analysis of strain E1HC-02T showed that it was a member of the family Microbacteriaceae, phylum Actinobacteria. The cell wall contained a type B2β peptidoglycan, the dominant cellular fatty acid was 18 : 1ω7c and the major hydroxy fatty acid was 2-OH 14 : 0. The major menaquinones were MK-8 (76 %) and MK-7 (24 %) and the glycolipids present were disphosphatidylglycerol, phosphatidylglycerol and three unidentified phospholipids. The chemotaxonomic properties of strain E1HC-02T were distinctly different to all of the 17 genera of the family Microbacteriaceae and hence strain E1HC-02T is designated as representing a novel species of a new genus, Frondicola australicus gen. nov., sp. nov. The type strain of the type species is E1HC-02T (=JCM 13598T=DSM 17894T).
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Nocardia acidivorans sp. nov., isolated from soil of the island of Stromboli
A Gram-positive, non-spore-forming bacterium (strain GW4-1778T) was isolated from soil of the Italian island of Stromboli. 16S rRNA gene sequence similarity studies showed that strain GW4-1778T is a member of the genus Nocardia, most closely related to Nocardia pseudobrasiliensis (GenBank accession no. DQ659914; 98.6 %), Nocardia nova (Z36930; 98.6 %), Nocardia niigatensis (AB092563; 98.4 %), Nocardia jiangxiensis (AY639902; 98.0 %), Nocardia uniformis (Z46752; 98.0 %) and Nocardia miyunensis (AY639901; 97.8 %). Strain GW4-1778T could be distinguished from any other established Nocardia species by sequence similarity values of less than 97.5 %. Strain GW4-1778T exhibited a quinone system with the predominant compound MK-8 (H4, ω-cycl) (99.5 %) and traces of MK-8 (H4), characteristic for the genus Nocardia. The polar lipid profile of strain GW4-1778T consisted of the predominant compound diphosphatidylglycerol, moderate amounts of phosphatidylethanolamine, phosphatidylinositol, two phosphatidylinositol mannosides, a unknown polar lipid and trace amounts of two unknown lipids and the major fatty acids were C15 : 0, C16 : 0, C17 : 1 ω8c and 10-methyl C17 : 0. The results of DNA–DNA hybridizations and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain GW4-1778T from related species with 16S rRNA gene similarities of >97.5 %. Therefore, strain GW4-1778T merits species status, for which the name Nocardia acidivorans sp. nov. is proposed, with the type strain GW4-1778T (=CCUG 53410T=CIP 109315T=DSM 45049T).
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Corynebacterium ureicelerivorans sp. nov., a lipophilic bacterium isolated from blood culture
More LessA lipophilic coryneform bacterium isolated from a blood culture from a patient with signs of septicaemia was characterized by means of phenotypic and molecular taxonomic methods. Chemotaxonomic investigations revealed the presence of cell-wall chemotype IV and short-chain mycolic acids, which are consistent with the genus Corynebacterium. The isolate was characterized biochemically by the very rapid (approx. 60 s) positive result that was obtained in a urease test in the API Coryne system. Comparative 16S rRNA gene sequencing demonstrated that the isolate belonged phylogenetically to the genus Corynebacterium. The values for sequence divergence (⩾1.4 %) with respect to known Corynebacterium species, together with phenotypic differences, show that the unidentified bacterium represents a novel member of this genus. On the basis of both the phenotypic and phylogenetic data, this isolate should be classified within a novel species of the genus Corynebacterium, for which the name Corynebacterium ureicelerivorans sp. nov. is proposed. The type strain is IMMIB RIV-2301T (=DSM 45051T=CCUG 53377T).
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Cellulomonas composti sp. nov., a cellulolytic bacterium isolated from cattle farm compost
A bacterial strain, TR7-06T, which has cellulase and β-glucosidase activities, was isolated from compost at a cattle farm near Daejeon, Republic of Korea. It was a Gram-positive, aerobic or facultatively anaerobic, non-motile, rod-shaped bacterium. Phylogenetic analysis based on 16S rRNA gene sequences showed that this strain belongs to the genus Cellulomonas, with highest sequence similarity to Cellulomonas uda DSM 20107T (98.5 %). Cell wall analysis revealed the presence of type A4β, l-orn–d-Glu peptidoglycan. The cell-wall sugars detected were mannose and glucose. The predominant menaquinone was MK-9(H4); MK-8(H4) was detected in smaller quantities. The major fatty acids were anteiso-C15 : 0, C16 : 0, C14 : 0 and C18 : 0. The polar lipids detected were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol. The results of DNA–DNA hybridization and physiological and biochemical tests clearly demonstrated that TR7-06T represents a novel species. The combined genotypic and phenotypic data show that strain TR7-06T (=KCTC 19030T=NBRC 100758T) merits description as the type strain of a novel Cellulomonas species, Cellulomonas composti sp. nov.
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- Bacteroidetes
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Dyadobacter koreensis sp. nov., isolated from fresh water
More LessA non-motile, rod-shaped, light-yellow-pigmented bacterium, designated strain WPCB159T, was isolated from freshwater samples collected from the Woopo wetland in Korea. The cells were Gram-negative, aerobic and catalase- and oxidase-positive. The major fatty acids were C16 : 1 ω7c (34.8 %), iso-C15 : 0 (24.2 %) and C16 : 0 (9.4 %). The DNA G+C content was 44 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain WPCB159T forms a lineage within the genus Dyadobacter (family ‘Flexibacteraceae’) and is closely related to Dyadobacter hamtensis HHS 11T (97.8 % sequence similarity) and to other members of the genus Dyadobacter (95.2–96.8 % sequence similarity). The phenotypic characteristics and DNA–DNA hybridization relatedness data indicate that strain WPCB159T should be distinguished from D. hamtensis HHS 11T. On the basis of the evidence presented in this study, strain WPCB159T represents a novel species of the genus Dyadobacter, for which the name Dyadobacter koreensis sp. nov. is proposed. The type strain is WPCB159T (=KCTC 12537T=NBRC 101116T).
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Bacteroides coprophilus sp. nov., isolated from human faeces
Three Gram-negative, anaerobic, rod-shaped bacteria (strains CB40, CB41 and CB42T) were isolated from human faeces. Based on phylogenetic analysis and specific phenotypic characteristics, these strains were included in the genus Bacteroides, and 16S rRNA gene sequence analysis indicated that these strains represented a novel species. The strains were most closely related to the type strains of Bacteroides barnesiae and Bacteroides salanitronis, with sequence similarities of 93.4 and 89.8 %, respectively. The G+C content of strain CB42T is 44.7 mol%. Major fatty acids were anteiso-C15 : 0, C16 : 0, iso-C17 : 0 3-OH and C18 : 1 ω9c. On the basis of the data presented, a novel Bacteroides species, Bacteroides coprophilus sp. nov., is proposed, with CB42T (=JCM 13818T=DSM 18228T) as the type strain.
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Flammeovirga kamogawensis sp. nov., isolated from coastal seawater in Japan
More LessTwo strains of gliding, agarolytic bacteria, strains YS10T and YML5, were isolated from coastal seawater off Kamogawa, Japan. Phylogenetic analysis based on 16S rRNA gene sequences showed that the novel isolates represent a separate lineage within the genus Flammeovirga. DNA–DNA hybridization values between these isolates and the type strains of species of the genus Flammeovirga were significantly lower than those accepted as threshold values for the phylogenetic definition of a species. Furthermore, some of the phenotypic characteristics indicate that the isolates differ from other Flammeovirga species. Based on these differences, it is suggested that the isolates represent a novel species, for which the name Flammeovirga kamogawensis sp. nov. is proposed. The type strain is YS10T (=IAM 15451T=NCIMB 14281T).
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Parapedobacter koreensis gen. nov., sp. nov.
More LessStrain Jip14T, a Gram-negative, non-spore-forming, rod-shaped, non-motile bacterium, was isolated from dried rice straw and characterized in order to determine its taxonomic position. 16S rRNA gene sequence analysis revealed that strain Jip14T belongs to the family Sphingobacteriaceae, and the highest degree of sequence similarity was determined to be to Pedobacter saltans DSM 12145T (88.5 %), Pedobacter africanus DSM 12126T (87.6 %), Pedobacter heparinus DSM 2366T (87.1 %) and Pedobacter caeni LMG 22862T (86.9 %). Chemotaxonomic data revealed that strain Jip14T possesses menaquinone MK-7 and the predominant fatty acids C15 : 0 iso, C16 : 0, C16 : 0 10-methyl, C17 : 0 iso 3-OH and summed feature 3 (C15 : 0 iso 2-OH/C16 : 1 ω7c). The results of physiological and biochemical tests clearly demonstrated that strain Jip14T represents a distinct species. Based on these data, Jip14T should be classified within a novel genus and species, for which the name Parapedobacter koreensis gen. nov., sp. nov. is proposed. The type strain of Parapedobacter koreensis is Jip14T (=KCTC 12643T=LMG 23493T).
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Chryseobacterium daeguense sp. nov., isolated from wastewater of a textile dye works
More LessA Gram-negative, rod-shaped bacterial strain, K105T, was isolated from wastewater of a textile dye works in Korea and subjected to a polyphasic taxonomic study. Strain K105T grew optimally at pH 6.5–7.5 and 30–37 °C. It contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 1 ω9c, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids. The DNA G+C content was 36.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain K105T belonged to the genus Chryseobacterium. Strain K105T exhibited 16S rRNA gene sequence similarity values of less than 96.9 % to the type strains of recognized Chryseobacterium species. Strain K105T differed from phylogenetically related Chryseobacterium species in several phenotypic properties. On the basis of phenotypic and phylogenetic data, strain K105T (=KCTC 12841T=JCM 14362T) is placed in the genus Chryseobacterium as the type strain of a novel species, for which the name Chryseobacterium daeguense sp. nov. is proposed.
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- Proteobacteria
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Pigmentiphaga daeguensis sp. nov., isolated from wastewater of a dye works, and emended description of the genus Pigmentiphaga
More LessA Gram-negative, non-spore-forming, rod-shaped Pigmentiphaga-like bacterial strain, K110T, was isolated from wastewater collected from a dye works in Korea and was subjected to a polyphasic taxonomic analysis. Strain K110T grew optimally at pH 7.0–-8.0 and 37 °C in the presence of 0.5 % (w/v) NaCl. It contained Q-8 as the predominant ubiquinone and C16 : 0, cyclo C17 : 0 and cyclo C19 : 0 ω8c as the major fatty acids. The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine and two unidentified aminolipids. The DNA G+C content was 67.4 mol%. In a neighbour-joining phylogenetic tree constructed on the basis of 16S rRNA gene sequences, strain K110T joined Pigmentiphaga kullae, the sole species of the genus, at a bootstrap confidence level of 100 %. Strain K110T exhibited a 16S rRNA gene sequence similarity of 99.4 % with respect to the type strain of P. kullae. Although strain K110T was found to be similar to P. kullae in terms of phenotypic properties, it differed in terms of motility, polar lipids, DNA–DNA relatedness and repetitive extragenic palindromic PCR genomic fingerprinting patterns. On the basis of phenotypic, phylogenetic and genetic data, strain K110T represents a novel species of the genus Pigmentiphaga, for which the name Pigmentiphaga daeguensis sp. nov. is proposed. The type strain is K110T (=KCTC 12838T=JCM 14330T).
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Mesorhizobium albiziae sp. nov., a novel bacterium that nodulates Albizia kalkora in a subtropical region of China
More LessA novel Mesorhizobium group associated with Albizia kalkora [ Wang et al. (2006) , Syst Appl Microbiol 29, 502–517] was further characterized. The seven strains in this group showed similar protein patterns and were different from defined Mesorhizobium species in SDS-PAGE of whole-cell proteins. The representative strain CCBAU 61158T formed a novel Mesorhizobium lineage in phylogenetic analyses of 16S rRNA, atpD, glnII and nifH genes. However, its nodC gene sequence was more similar to that of Rhizobium gallicum R602spT than to those of Mesorhizobium species. DNA–DNA relatedness between CCBAU 61158T and reference strains of defined Mesorhizobium species was lower than 34.1 %. These results indicated that this Mesorhizobium group was a unique genomic species. The subtropical distribution, host origin, PCR-RFLP patterns of 16S rRNA genes, fatty acid profile and a series of phenotypic characteristics could be used as distinctive features of this group. This group is therefore proposed as a novel species, Mesorhizobium albiziae sp. nov., with CCBAU 61158T (=LMG 23507T=USDA 4964T) as the type strain. Strain CCBAU 61158T could form effective nodules on Albizia julibrissin, Glycine max, Leucaena leucocephala and Phaseolus vulgaris.
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Leeia oryzae gen. nov., sp. nov., isolated from a rice field in Korea
A strictly aerobic, non-spore-forming, Gram-negative bacterium, designated strain HW7T, was isolated from a rice field in Korea. Cells of strain HW7T were short rod-shaped and motile with single polar flagella. The major cellular fatty acids of strain HW7T were C16 : 0 and summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH). The genomic DNA G+C content was 56 mol% and the major isoprenoid quinone was Q-8. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain HW7T forms a distinct lineage with respect to closely related genera within the class Betaproteobacteria and that the levels of 16S rRNA gene sequence similarity with respect to the type species of related genera are less than 93 %. On the basis of the physiological and phylogenetic data, strain HW7T represents a novel genus and species of the Betaproteobacteria, for which the name Leeia oryzae gen. nov., sp. nov. is proposed. The type strain is HW7T (=KCTC 12585T=DSM 17879T).
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Alteromonas tagae sp. nov. and Alteromonas simiduii sp. nov., mercury-resistant bacteria isolated from a Taiwanese estuary
More LessTwo mercury-resistant strains of heterotrophic, aerobic, marine bacteria, designated AT1T and AS1T, were isolated from water samples collected from the Er-Jen River estuary, Tainan, Taiwan. Cells were Gram-negative rods that were motile by means of a single polar flagellum. Buds and prosthecae were produced. The two isolates required NaCl for growth and grew optimally at about 30 °C, 2–4 % NaCl and pH 7–8. They grew aerobically and were incapable of anaerobic growth by fermenting glucose or other carbohydrates. They grew and expressed Hg2+-reducing activity in liquid media containing HgCl2. Strain AS1T reduced nitrate to nitrite. The predominant isoprenoid quinone was Q8 (91.3–99.9 %). The polar lipids of strain AT1T consisted of phosphatidylethanolamine (46.6 %), phosphatidylglycerol (28.9 %) and sulfolipid (24.5 %), whereas those of AS1T comprised phosphatidylethanolamine (48.2 %) and phosphatidylglycerol (51.8 %). The two isolates contained C16 : 1 ω7c and/or iso-C15 : 0 2-OH (22.4–33.7 %), C16 : 0 (19.0–22.7 %) and C18 : 1 ω7c (11.3–11.7 %) as the major fatty acids. Strains AT1T and AS1T had DNA G+C contents of 43.1 and 45.3 mol%, respectively. Phylogeny based on 16S rRNA gene sequences, together with data from morphological, physiological and chemotaxonomic characterization, indicated that the two isolates could be classified as representatives of two novel species in the genus Alteromonas, for which the names Alteromonas tagae sp. nov. (type strain AT1T=BCRC 17571T=JCM 13895T) and Alteromonas simiduii sp. nov. (type strain AS1T=BCRC 17572T=JCM 13896T) are proposed.
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Caenispirillum bisanense gen. nov., sp. nov., isolated from sludge of a dye works
More LessTwo Gram-negative, non-spore-forming, motile and helical-shaped bacterial strains, K92T and K93, were isolated from sludge from a dye works in Korea, and their taxonomic positions were investigated by means of a polyphasic approach. Strains K92T and K93 grew optimally at 37 °C and pH 7.0–8.0 in the presence of 0.5 % (w/v) NaCl. They contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and two unidentified amino-group-containing lipids that were ninhydrin-positive. Their DNA G+C contents were 70.0 mol%. The 16S rRNA gene sequences of K92T and K93 showed no differences, and the two strains had a mean DNA–DNA relatedness of 93 %. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains K92T and K93 formed a distinct evolutionary lineage within the Alphaproteobacteria. The 16S rRNA gene sequences of strains K92T and K93 exhibited similarity values of less than 91.5 % with respect to the 16S rRNA gene sequences of other members of the Alphaproteobacteria. The two strains were distinguishable from phylogenetically related genera through differences in several phenotypic properties. On the basis of the phenotypic, phylogenetic and genetic data, strains K92T and K93 represent a novel genus and species, for which the name Caenispirillum bisanense gen. nov., sp. nov. is proposed. The type strain of Caenispirillum bisanense is K92T (=KCTC 12839T=JCM 14346T).
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Halomonas shengliensis sp. nov., a moderately halophilic, denitrifying, crude-oil-utilizing bacterium
More LessA moderately halophilic bacterium, designated strain SL014B-85T, was isolated from a crude-oil-contaminated saline soil from Shengli oilfield, Shandong Province, China. Cells were Gram-negative, aerobic, short rods with lateral flagella. Growth occurred at NaCl concentrations of 0–15 % (optimum 5–15 %), at 10–42 °C (optimum 30 °C) and at pH 8.0–9.0 (optimum pH 8.5). The only respiratory quinone was Q9, and the main cellular fatty acids were C18 : 1 ω7c, C16 : 0 and C19 : 0 cyclo ω8c. The G+C content of the DNA was 66.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SL014B-85T belonged to the genus Halomonas in the Gammaproteobacteria, with highest sequence similarity of 98.1 and 97.8 % to Halomonas alimentaria DSM 15356T and Halomonas ventosae DSM 15911T, respectively. DNA–DNA relatedness values were below 40 % with members of closely related Halomonas species. Results of phenotypic, biochemical and phylogenetic analyses revealed that strain SL014B-85T could be classified as representing a novel species of the genus Halomonas, for which the name Halomonas shengliensis sp. nov. is proposed. The type strain is SL014B-85T (=CGMCC 1.6444T=LMG 23897T).
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Chromohalobacter salarius sp. nov., a moderately halophilic bacterium isolated from a solar saltern in Cabo de Gata, Almería, southern Spain
A moderately halophilic, Gram-negative bacterium (strain CG4.1T), which was isolated from a solar saltern at Cabo de Gata, a wildlife reserve located in the province of Almería, southern Spain, was subjected to a polyphasic taxonomic study. This organism was an aerobic, motile rod that produced colonies with a yellow pigment. Strain CG4.1T grew at salinities of 3–25 % (w/v), at 15–45 °C and at pH 5–9. The organism reduced nitrate, hydrolysed starch and had phenylalanine deaminase activity. The major fatty acids were C18 : 1 ω7c, C16 : 0 and C19 : 0 cyclo ω8c. The DNA G+C content was 63.6 mol%. On the basis of phenotypic and phylogenetic data, strain CG4.1T appears to be a member of the genus Chromohalobacter and clustered closely with Chromohalobacter species, with 95–96 % similarity between their 16S rRNA gene sequences. However, DNA–DNA relatedness between the isolate and the type strains of Chromohalobacter species was low. Therefore, it is proposed that strain CG4.1T represents a novel species, Chromohalobacter salarius sp. nov. The type strain is strain CG4.1T (=CECT 5903T=LMG 23626T).
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Rhodobium pfennigii sp. nov., a phototrophic purple non-sulfur bacterium with unusual bacteriochlorophyll a antennae, isolated from a brackish microbial mat on Rangiroa atoll, French Polynesia
More LessA novel budding purple non-sulfur bacterium (strain AR2102T) was isolated in pure culture from a microbial mat that had developed in brackish-water ponds on the coral rim of the atoll of Rangiroa (Tuamotu Islands, French Polynesia). Single cells of this strain were rod-shaped and motile by means of polar flagella and divided by budding. Their intracellular photosynthetic membranes were of the lamellar type. Bacteriochlorophyll a and carotenoids of the normal spirilloxanthin series, with spirilloxanthin as the main carotenoid, were present as photosynthetic pigments. Bacteriochlorophyll a absorption in the infrared portion of the light spectrum exhibited an unusual in vivo absorption peak at 909 nm. The strain grew optimally under photoheterotrophic conditions, but could grow photolithotrophically on thiosulfate or chemo-organotrophically under micro-oxic conditions. Optimal growth occurred in the presence of 1–2 % NaCl. Comparative sequence analysis of the 16S rRNA gene placed strain AR2102T within the class Alphaproteobacteria, in a cluster with Rhodobium species. Representatives of this cluster form a closely related group of slightly to moderately halotolerant to halophilic, rod-shaped, purple non-sulfur bacteria that divide by budding. The new isolate exhibited some differences in physiology (no utilization of alcohols or carbohydrates) and genetic characteristics (low relatedness in DNA–DNA hybridization) as well as in its relation to light (differences in absorption wavelengths) from previously described Rhodobium species. Consequently, we propose that strain AR2102T (=DSM 17143T=ATCC BAA-1145T) should be considered as the type strain of a novel species within the genus Rhodobium, Rhodobium pfennigii sp. nov.
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Marichromatium bheemlicum sp. nov., a non-diazotrophic, photosynthetic gammaproteobacterium from a marine aquaculture pond
More LessA rod-shaped, phototrophic, purple sulfur bacterium, strain JA124T, was isolated in pure culture from a marine aquaculture pond, located near Bhimunipatnam, in a medium that contained 3 % NaCl (w/v). Strain JA124T is a Gram-negative, motile rod with a single polar flagellum. Strain JA124T has a requirement for NaCl, with optimum growth at 1.5–8.5 %, and tolerates up to 11 % NaCl. Intracellular photosynthetic membranes are of the vesicular type. Bacteriochlorophyll a and probably carotenoids of the spirilloxanthin series are present as photosynthetic pigments. Strain JA124T was able to utilize sulfide, sulfate, thiosulfate, sulfite, thioglycollate and cysteine as sulfur sources. Strain JA124T was able to grow photolithoautotrophically, photolithoheterotrophically and photo-organoheterotrophically. Chemotrophic and fermentative growth could not be demonstrated. Strain JA124T lacks diazotrophic growth and acetylene reduction activity. Pyridoxal phosphate is required for growth. During growth on reduced sulfur sources as electron donors, sulfur is deposited intermediately as a number of small granules within the cell. Phylogenetic analysis on the basis of 16S rRNA gene sequences showed that strain JA124T clusters with species of the genus Marichromatium belonging to the class Gammaproteobacteria. The highest sequence similarities of strain JA124T were found with the type strains of Marichromatium indicum (98 %), Marichromatium purpuratum (95 %) and Marichromatium gracile (93 %). However, DNA–DNA hybridization with Marichromatium indicum DSM 15907T revealed relatedness of only 65 % with strain JA124T. The DNA base composition of strain JA124T was 67 mol% G+C (by HPLC). Based on 16S rRNA gene sequence analysis, morphological and physiological characteristics and DNA–DNA hybridization studies, strain JA124T (=ATCC BAA-1316T=JCM 13911T) is sufficiently different from other Marichromatium species to merit its description as the type strain of a novel species, Marichromatium bheemlicum sp. nov.
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