Abstract:
:A new taxonomy of the green sulfur bacteria is proposed, based on phylogenetic relationships determined using the sequences of the independent 16S rRNA and fmo (Fenna-Matthews-Olson protein) genes, and supported by the DNA G + C content and sequence signatures. Comparison of the traditional classification system for these bacteria with their phylogenetic relationship yielded a confusing picture, because properties used for classification (such as cell morphology, photosynthetic pigments and substrate utilization) do not concur with their phylogeny. Using the genetic information available, strains and species assigned to the genera Chlorobium, Pelodictyon and Prosthecochloris are considered, and the following changes are proposed. Pelodictyon luteolum is transferred to the genus Chlorobium as Chlorobium luteolum comb. nov. Pelodictyon clathratiforme and Pelodictyon phaeoclathratiforme are transferred to the genus Chlorobium and combined into one species, Chlorobium clathratiforme comb. nov. The name Pelodictyon will become a synonym of Chlorobium. Strains known as Chlorobium limicola subsp. thiosulfatophilum that have a low DNA G + C content (52-52.5 mol%) are treated as strains of Chlorobium limicola; those with a high DNA G + C content (58.1 mol%) are transferred to Chlorobaculum gen. nov., as Chlorobaculum thiosulfatiphilum sp. nov. Chlorobium tepidum is transferred to Chlorobaculum tepidum comb. nov., and defined as the type species of the genus Chlorobaculum. Strains assigned to Chlorobium phaeobacteroides, but phylogenetically distant from the type strain of this species, are assigned to Chlorobium limicola and to Chlorobaculum limnaeum sp. nov. Strains known as Chlorobium vibrioforme subsp. thiosulfatophilum are transferred to Chlorobaculum parvum sp. nov. Chlorobium chlorovibrioides is transferred to 'Chlorobaculum chlorovibrioides' comb. nov. The type strain of Chlorobium vibrioforme is phylogenetically related to Prosthecochloris, and is therefore transferred to this genus as Prosthecochloris vibrioformis comb. nov. Consequently, the name Chlorobium vibrioforme will become a synonym of Prosthecochloris vibrioformis, and other strains that were assigned to this species are now considered to belong to Chlorobium luteolum, Chlorobium phaeovibrioides and 'Chlorobaculum chlorovibrioides', according to their phylogenetic relatedness.
journal_name
Int J Syst Evol Microbiolauthors
Imhoff JFdoi
10.1099/ijs.0.02403-0keywords:
subject
Has Abstractpub_date
2003-07-01 00:00:00pages
941-951issue
Pt 4eissn
1466-5026issn
1466-5034journal_volume
53pub_type
杂志文章abstract::A non-motile, rod-shaped, red-pigmented bacterium, designated strain BZ33r(T), was isolated from soil of an industrial site. Cells stained Gram-negative and were aerobic and psychrophilic, showing good growth at 1-20 °C. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BZ33r(T) was related to ...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.023465-0
更新日期:2011-04-01 00:00:00
abstract::Similarities in phylogeny and metabolic properties between the type species of two monospecific genera of thermophilic anaerobic bacteria, Carboxydothermus hydrogenoformans and Thermoterrabacterium ferrireducens, and analysis of their recently available 16S rRNA gene sequences warranted clarification of their taxonomi...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.64503-0
更新日期:2006-10-01 00:00:00
abstract::Advances in DNA sequencing and the increasing number of sequences available in databases have greatly enhanced the bacterial identification process. Several species within the genus Mycobacterium cause serious human and animal diseases. In order to assess their relative positions in the evolutionary process, four gene...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.63222-0
更新日期:2005-01-01 00:00:00
abstract::A novel mineral-weathering bacterium was isolated from weathered rock (potassic trachyte) surfaces collected from Nanjing (Jiangsu, PR China). Cells of strain JN246(T) were Gram-stain-negative, rod-shaped and non-motile. Strain JN246(T) was aerobic, catalase- and oxidase-positive, and grew optimally at 28 °C and pH 7....
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.070516-0
更新日期:2015-01-01 00:00:00
abstract::Four Gram-positive, non-motile, non-spore-forming bacterial strains, LC4(T), LC6(T), LC10(T) and LC13(T), were isolated from a filtration substrate made from trass, a volcanic rock, and their taxonomic positions were investigated by a polyphasic taxonomic approach. The novel strains grew over a temperature range of 5-...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.65301-0
更新日期:2009-04-01 00:00:00
abstract::A Gram-stain-positive, endospore-forming, rod-shaped, motile and strictly aerobic strain, designated T3-209T, was isolated from sediment sampled at a water depth of 1206 m of the southern Okinawa Trough at station T1 (25.07° N, 122.58° E) near the Tangyin hydrothermal vent during an expedition on the R/V Kexue in May ...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijsem.0.002648
更新日期:2018-04-01 00:00:00
abstract::A taxonomic study was carried out on strain F44-8(T), which was isolated from a crude-oil-degrading consortium, enriched from marine sediment of the Beibu Gulf, PR China. The 16S rRNA gene sequence of strain F44-8(T) showed highest similarities to those of Flavobacterium frigoris LMG 21922(T) (93.3 %), Flavobacterium ...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.018846-0
更新日期:2011-01-01 00:00:00
abstract::A study was undertaken to determine the prevalence and diversity of species of the genus Arcobacter in pig and dairy cattle manure, which led to the identification of strains AF1440T, AF1430 and AF1581. Initially identified as Arcobacter butzleri based on colony morphology and initial PCR-confirmation tests, analyses ...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.000318
更新日期:2015-08-01 00:00:00
abstract::A novel actinobacterium, designated strain NEAU-QY2T, was isolated from the leaves of Sonchus oleraceus L. specimen, collected from Wuchang, Heilongjiang Province, China. A polyphasic study was carried out to establish the taxonomic position of this strain. The organism formed single spores with rough surfaces on subs...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijsem.0.000668
更新日期:2015-12-01 00:00:00
abstract::Strains of Gram-stain-negative, anaerobic, rod-shaped bacteria were isolated from chinchilla (Chinchilla lanigera) faeces, and strain ST166(T) was investigated taxonomically. Phylogenetic analyses of 16S rRNA gene sequences revealed that strain ST166(T) belonged to the genus Parabacteroides. Strain ST166(T) formed a d...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.050146-0
更新日期:2013-09-01 00:00:00
abstract::A mesophilic anaerobic bacterium, designated KHALHBd91T was isolated from the moderately hot spring of Hammam Biadha, Tunisia. The strain was Gram-staining-negative, non-sporulating, non-motile and rod-shaped, appearing singly (0.5-2.0×0.5-1 µm). It grew anaerobically at temperatures between 20 and 50 °C (optimum 37 °...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijsem.0.001412
更新日期:2016-11-01 00:00:00
abstract::A novel, strictly aerobic, Gram-negative, yellow-orange-pigmented, motile, catalase-positive, oxidase-negative bacterium, RW262(T), was isolated from water of the River Taff, Cardiff, UK, during January 2000. Phylogenetic analysis of the 16S rRNA gene indicated that strain RW262(T) was a member of the family Cryomorph...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.63736-0
更新日期:2005-09-01 00:00:00
abstract::Following phylogenetic analysis based on 16S rRNA gene sequences, together with DNA G+C contents and differential chemotaxonomic and physiological characteristics, a new genus with the name Aliiglaciecola gen. nov. is proposed to more appropriately accommodate two recognized species of the genera Glaciecola and Aestua...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.045625-0
更新日期:2013-08-01 00:00:00
abstract::Genetic diversity in tropical rhizobial species is still poorly known. With the aim of increasing this knowledge, three ribosomal regions of 119 strains belonging to the official Brazilian culture collection of rhizobia and classified as Bradyrhizobium based on morphological and physiological characteristics in vitro ...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.02917-0
更新日期:2006-01-01 00:00:00
abstract::A Gram-reaction-positive, rod-shaped, non-motile, non-spore-forming bacterium (strain BX5-10(T)) was isolated from the soil of a ginseng field on Baekdu Mountain in Jilin district, China. The taxonomic position of this bacterium was determined in an investigation based on a polyphasic approach. On the basis of 16S rRN...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.031823-0
更新日期:2012-03-01 00:00:00
abstract::A bacterial strain, B5-2T, was isolated from an ice core drilled from Muztagh Glacier, China. Strain B5-2T was a Gram-stain-negative, short rod-shaped, motile by polar flagella, aerobic bacterium. The major fatty acids of strain B5-2T were summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and iso-C13 : 0. The G+C conten...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijsem.0.001661
更新日期:2017-02-01 00:00:00
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journal_title:International journal of systematic and evolutionary microbiology
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doi:10.1099/ijs.0.64317-0
更新日期:2006-08-01 00:00:00
abstract::A Gram-negative bacterium, designated strain EMB71(T), was isolated from activated sludge used for enhanced biological phosphorus removal in a sequencing batch reactor. The cells of the isolate were facultatively aerobic, motile rods with single polar flagella. Growth was observed to occur at 15-35 degrees C (optimall...
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更新日期:2007-05-01 00:00:00
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journal_title:International journal of systematic and evolutionary microbiology
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更新日期:2012-11-01 00:00:00
abstract::Strain CCUG 50899, a Gram-negative, rod-shaped, non-spore-forming, motile bacterium isolated from industrial environment in Sweden and tentatively assigned to the species Ochrobactrum anthropi, was studied in order to clarify its taxonomic status. 16S rRNA gene sequence similarities placed the strain in the genus Ochr...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.011668-0
更新日期:2010-02-01 00:00:00
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journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
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更新日期:2020-05-01 00:00:00
abstract::Two unusual, Gram-negative, catalase- and oxidase-positive rods, designated C2(T) and C5, were isolated from compost samples. Comparative 16S rRNA gene sequencing studies demonstrated that both isolates were members of the genus Pseudomonas and belonged to the Pseudomonas aeruginosa group. Strain C2(T) was most closel...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.027086-0
更新日期:2011-12-01 00:00:00
abstract::Yersinia kristensenii consists of phenotypically heterogeneous strains. This is reflected by the existence of strains with various multilocus enzyme electrophoresis and 16S rRNA gene sequence types. Strains originally phenotyped as members of Y. kristensenii were studied using 16S rRNA gene sequencing, DNA-DNA hybridi...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.63220-0
更新日期:2005-03-01 00:00:00
abstract::A thermophilic actinomycete, strain LA5(T), was isolated from a hot spring in Yunnan province, People's Republic of China. The isolate grew aerobically at temperatures of 50-75 degrees C. Aerobic mycelia were not observed. Single spores were produced along the substrate hypha. Strain LA5(T) was characterized chemotaxo...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.64646-0
更新日期:2007-08-01 00:00:00
abstract::A Gram-stain-negative, strictly aerobic, non-motile, rod-shaped bacterial strain, THG-A18(T), was isolated from soil of Gwangju province in South Korea. Strain THG-A18(T) grew optimally at 25-30 °C, at pH 7.0-8.0 and in the absence of NaCl. Strain THG-A18(T) displayed β-glucosidase activity, which enabled it to conver...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.052118-0
更新日期:2013-12-01 00:00:00
abstract::A novel chemolithoautotrophic and hyperthermophilic member of the genus Ignicoccus was isolated from a submarine hydrothermal system at the Kolbeinsey Ridge, to the north of Iceland. The new isolate showed high similarity to the two species described to date, Ignicoccus islandicus and Ignicoccus pacificus, in its phys...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.64721-0
更新日期:2007-04-01 00:00:00
abstract::Analysis of 16S rRNA gene sequences has been the method generally used to study the evolution and phylogeny of bacteria. Phylogenetic analysis of the 16S rRNA gene has shown the position of the genus Helicobacter in the epsilon-subclass of the Proteobacteria. Because 16S rRNA-based phylogeny does not always correspond...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.02839-0
更新日期:2004-05-01 00:00:00
abstract::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 acc...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijs.0.63382-0
更新日期:2004-09-01 00:00:00
abstract::A novel Gram-stain-negative, flagellated, rod-shaped, yellow-pigmented aerobic bacterium, strain SA925T, that is capable of degrading 1-methylphenanthrene was isolated from oil-polluted soil collected from a refinery located in Guangzhou, China. Phylogenetic analysis based on the 16S rRNA gene sequence demonstrated th...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijsem.0.001669
更新日期:2017-02-01 00:00:00
abstract::A Gram-stain-negative, non-spore-forming, aerobic, motile, ovoid or short rod shaped bacterium, designed strain B17T, was isolated from the culture broth of Picochlorum sp. 122. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain B17T forms a stable cluster with Oceanicolagranulosus MCCC 1A105...
journal_title:International journal of systematic and evolutionary microbiology
pub_type: 杂志文章
doi:10.1099/ijsem.0.003225
更新日期:2019-02-01 00:00:00