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Diplorickettsia
''Diplorickettsia massiliensis'' species is an obligate intracellular, gram negative bacterium isolated from Ixodes ricinus ticks collected in Slovak republic forest geographically from southeastern part of Rovinka in 2006.Mediannikov, O., et al.A novel obligate intracellular gamma-proteobacterium associated with ixodid ticks, Diplorickettsia massiliensis, Gen. Nov., Sp. Nov.''PLOS ONE'', 2010. 5(7): p. e11478. They belong to the gammaproteobacteria class and are non endospore forming, small rods usually grouped in pairs. The bacteria are non-motile, and 16S rRNA, rpoB, parC and ftsY gene sequencing indicate that this bacterium is clearly different from all other recognized species. An initial phylogenetic analysis based on 16S rRNA, clustered ''D. massiliensis'' with ''Rickettsiella grylli''. Because of its low 16S rDNA similarity (94%) with ''R. grylli'', it was classified as a new genus ''Diplorickettsia'' into the family ''Coxiellaceae'' and the order ''Legionellales''. ''D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplorickettsia Massiliensis Strain 20B Bacteria Grown In XTC-2 Cells Transmission Electron Microscopy; Staining With Uranyl Acetate
''Diplorickettsia massiliensis'' species is an obligate intracellular, gram negative bacterium isolated from Ixodes ricinus ticks collected in Slovak republic forest geographically from southeastern part of Rovinka in 2006.Mediannikov, O., et al.A novel obligate intracellular gamma-proteobacterium associated with ixodid ticks, Diplorickettsia massiliensis, Gen. Nov., Sp. Nov.''PLOS ONE'', 2010. 5(7): p. e11478. They belong to the gammaproteobacteria class and are non endospore forming, small rods usually grouped in pairs. The bacteria are non-motile, and 16S rRNA, rpoB, parC and ftsY gene sequencing indicate that this bacterium is clearly different from all other recognized species. An initial phylogenetic analysis based on 16S rRNA, clustered ''D. massiliensis'' with ''Rickettsiella grylli''. Because of its low 16S rDNA similarity (94%) with ''R. grylli'', it was classified as a new genus ''Diplorickettsia'' into the family ''Coxiellaceae'' and the order ''Legionellales''. ''D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplorickettsia
''Diplorickettsia massiliensis'' species is an obligate intracellular, gram negative bacterium isolated from Ixodes ricinus ticks collected in Slovak republic forest geographically from southeastern part of Rovinka in 2006.Mediannikov, O., et al.A novel obligate intracellular gamma-proteobacterium associated with ixodid ticks, Diplorickettsia massiliensis, Gen. Nov., Sp. Nov.''PLOS ONE'', 2010. 5(7): p. e11478. They belong to the gammaproteobacteria class and are non endospore forming, small rods usually grouped in pairs. The bacteria are non-motile, and 16S rRNA, rpoB, parC and ftsY gene sequencing indicate that this bacterium is clearly different from all other recognized species. An initial phylogenetic analysis based on 16S rRNA, clustered ''D. massiliensis'' with ''Rickettsiella grylli''. Because of its low 16S rDNA similarity (94%) with ''R. grylli'', it was classified as a new genus ''Diplorickettsia'' into the family ''Coxiellaceae'' and the order ''Legionellales''. ''D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplorickettsia Massiliensis Strain 20B Bacteria Grown In XTC-2 Cells
''Diplorickettsia massiliensis'' species is an obligate intracellular, gram negative bacterium isolated from Ixodes ricinus ticks collected in Slovak republic forest geographically from southeastern part of Rovinka in 2006.Mediannikov, O., et al.A novel obligate intracellular gamma-proteobacterium associated with ixodid ticks, Diplorickettsia massiliensis, Gen. Nov., Sp. Nov.''PLOS ONE'', 2010. 5(7): p. e11478. They belong to the gammaproteobacteria class and are non endospore forming, small rods usually grouped in pairs. The bacteria are non-motile, and 16S rRNA, rpoB, parC and ftsY gene sequencing indicate that this bacterium is clearly different from all other recognized species. An initial phylogenetic analysis based on 16S rRNA, clustered ''D. massiliensis'' with ''Rickettsiella grylli''. Because of its low 16S rDNA similarity (94%) with ''R. grylli'', it was classified as a new genus ''Diplorickettsia'' into the family ''Coxiellaceae'' and the order ''Legionellales''. ''D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplorickettsia Massiliensis Strain 20B Bacteria Grown In XTC-2 Cells Transmission Electron Microscopy; Staining With Red Ruthenium
''Diplorickettsia massiliensis'' species is an obligate intracellular, gram negative bacterium isolated from Ixodes ricinus ticks collected in Slovak republic forest geographically from southeastern part of Rovinka in 2006.Mediannikov, O., et al.A novel obligate intracellular gamma-proteobacterium associated with ixodid ticks, Diplorickettsia massiliensis, Gen. Nov., Sp. Nov.''PLOS ONE'', 2010. 5(7): p. e11478. They belong to the gammaproteobacteria class and are non endospore forming, small rods usually grouped in pairs. The bacteria are non-motile, and 16S rRNA, rpoB, parC and ftsY gene sequencing indicate that this bacterium is clearly different from all other recognized species. An initial phylogenetic analysis based on 16S rRNA, clustered ''D. massiliensis'' with ''Rickettsiella grylli''. Because of its low 16S rDNA similarity (94%) with ''R. grylli'', it was classified as a new genus ''Diplorickettsia'' into the family ''Coxiellaceae'' and the order ''Legionellales''. ''D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rickettsiella
''Rickettsiella'' is a genus of the family Coxiellaceae. It should not be confused with ''Rickettsia''. It is currently considered of the Gammaproteobacteria. However, its placement under Coxiellaceae instead of Legionellaceae has been challenged. Molecular Signatures and Taxonomy Members of the genera ''Rickettsiella'' and ''Diplorickettsia'' are observed to form a reliable clade in phylogenetic trees constructed from various datasets of concatenated protein sequences and 16S rRNA sequences, suggesting that they might belong to a single genus. Genomic analyses identified 12 conserved signature indels (CSIs) that are specific for this clade in the proteins inositol monophosphatase, lysyl-tRNA synthetase, elongation factor P-(R)-beta-lysine ligase, tol-Pal system beta propeller repeat protein TolB, FKBP-type peptidyl-prolyl cis-trans isomerase, response regulator transcription factor, 30S ribosomal protein S2, glycine cleavage system aminomethyltransferase GcvT, M3 family met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coxiella (bacterium)
''Coxiella'' refers to a genus of Gram-negative bacteria in the family Coxiellaceae. It is named after Herald Rea Cox (1907–1986), an American bacteriologist. It is one of the Gammaproteobacteria. ''Coxiella burnetii'' is the best known member of this genus. It is an intracellular parasite and it survives within the phagolysosomes of its host. It causes Q fever. The majority of ''Coxiella''’s described members are non pathogenic forms which are often found in ticks. Approximately two-thirds of tick species harbour ''Coxiella''-like endosymbionts required for tick survival and reproduction. Genomes of ''Coxiella''-like endosymbionts encode pathways for the biosynthesis of major B vitamins and co-factors that fit closely with the expected nutritional complements required for strict haematophagy. The experimental elimination of ''Coxiella''-like endosymbionts typically results in decreased tick survival, molting, fecundity and egg viability, as well as in physical abnormal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Legionellales
The Legionellales are an order of Pseudomonadota. Like all Pseudomonadota, they are Gram-negative.George M. Garrity: ''Bergey's Manual of Systematic Bacteriology''. 2. Auflage. Springer, New York, 2005, Volume 2: ''The Proteobacteria, Part B: The Gammaproteobacteria'' They comprise two families, typified by ''Legionella'' and '' Coxiella'', both of which include notable pathogens. For example, Q fever is caused by ''Coxiella burnetii'' and ''Legionella pneumophila'' causes Legionnaires' disease and Pontiac fever. Members of the order ''Legionellales'' can be molecularly distinguished from other Gammaproteobacteria by the presence of four conserved signature indels Conserved signature inserts and deletions (CSIs) in protein sequences provide an important category of molecular markers for understanding phylogenetic relationships. CSIs, brought about by rare genetic changes, provide useful phylogenetic markers ... (CSIs) in the proteins tRNA-guanine(34) transglycosylase, lipoprotei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coxiellaceae
The Coxiellaceae are a family in the order Legionellales. ''Coxiella burnetii'' is a species in this order. Another is ''Rickettsiella melolonthae''. References Legionellales Bacteria families {{Legionellales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Université De La Méditerranée Aix-Marseille II
The University of the Mediterranean Aix-Marseille II was a French university in the Academy of Aix and Marseille. Historically, it was part of the University of Aix-Marseille based across the communes of Aix-en-Provence and Marseille in southern France. It had 24,000 students. On 1 January 2012 it merged with the University of Provence and Paul Cézanne University to become Aix-Marseille University, the youngest, but also the largest in terms of students, budgets and staff in France. Academic programs The university is particularly strong in sciences with faculties for science ( Faculté des Sciences de Luminy), sport sciences (Faculté des Sciences du Sport), engineering ( École supérieure d'ingénieurs de Luminy) and economic science and management (Faculté des Sciences Économiques et de Gestion). The medical school comprises the faculties of Medicine, Pharmacy and Dentistry. In addition, there are a number of institutes: * Institut de Mécanique de Marseille (Institut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamma Proteobacteria
Gammaproteobacteria is a class of bacteria in the phylum Pseudomonadota (synonym Proteobacteria). It contains about 250 genera, which makes it the most genera-rich taxon of the Prokaryotes. Several medically, ecologically, and scientifically important groups of bacteria belong to this class. It is composed by all Gram-negative microbes and is the most phylogenetically and physiologically diverse class of Proteobacteria. These microorganisms can live in several terrestrial and marine environments, in which they play various important roles, including ''extreme environments'' such as hydrothermal vents. They generally have different shapes - rods, curved rods, cocci, spirilla, and filaments and include free living bacteria, biofilm formers, commensals and symbionts, some also have the distinctive trait of being bioluminescent. Metabolisms found in the different genera are very different; there are both aerobic and anaerobic (obligate or facultative) species, chemolithoautotroph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquicella
''Aquicella'' is a genus of Gram-negative rod-shaped cells and filaments in the family ''Coxiellaceae'' from the order ''Legionellales''. The type species of this genus is ''Aquicella lusitana.'' The name ''Aquicella'' is composed of the Latin term ''aqua'' (referring to water) and the Latin term ''cella'' (referring to a chamber, closet, or cabinet, or in biology, a cell). Together, the name ''Aquicella'' translates to a cell from water. Biochemical Characteristics and Molecular Signatures Members of this genus grow in protozoa and can be isolated from hydrothermal areas. All members are strictly aerobic, non-motile, do not produce spores and are oxidase and catalase negative. ''Aquicella'' species can grow in temperatures ranging from 30 °C to 43 °C and require a neutral pH and growth media containing activated charcoal and a-ketoglutarate. Colonies appear whitish with a pink or blue sheen. Analyses of genome sequences from ''Aquicella'' species identified six co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
