Search results for "Axon"
showing 10 items of 2126 documents
ICTV Virus Taxonomy Profile: Cystoviridae
2017
The family Cystoviridae includes enveloped viruses with a tri-segmented dsRNA genome and a double-layered protein capsid. The innermost protein shell is a polymerase complex responsible for genome packaging, replication and transcription. Cystoviruses infect Gram-negative bacteria, primarily plant-pathogenic Pseudomonas syringae strains. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Cystoviridae, which is available at http://www.ictv.global/report/cystoviridae.
Nemastoma bidentatum (Arachnida: Opiliones: Nemastomatidae): neu für Deutschland und die Tschechische Republik
2007
Nemastoma bidentatum (Arachnida: Opiliones: Nemastomatidae): first records for Germany and the Czech Republic. N. bidentatum Roewer, 1914 was found at two places in Germany: first on the island "Harriersand" in the Weser river (Lower Saxony), second on the banks of the river Elbe in the Elbsandsteingebirge (Saxony). Adjacent to the latter locality an occurrence in the Czech Republic could be located close to the German/Czech border in the floodplain of the river Elbe as well. These records are the first for Germany and the Czech Republic. They enlarge the distribution area of N. bidentatum remarkably in both a northern and a western direction. The two populations show conspicuous difference…
The intellectual demands of the intended chemistry curriculum in Czechia, Finland, and Turkey: a comparative analysis based on the revised Bloom's ta…
2020
Understanding the intellectual demands of an intended curriculum is crucial as it defines the frames for teaching and learning processes and practice during lessons. In this study, upper-secondary school chemistry curricula contents in Czechia, Finland, and Turkey were analysed, and their objectives were compared using the Revised Bloom's Taxonomy (RBT). The intellectual demands were examined analysing the action verbs in the three curricula objectives based on their association with the intended cognitive process dimensions in the RBT. The Turkish upper-secondary chemistry curriculum was found to be more structured, detailed, and containing more objectives than the Czech and Finnish curric…
Roseivivax atlanticus (Li, Lai, Liu, Sun and Shao, 2015) is a later heterotypic synonym of Roseivivax marinus (Dai, Shi, Gao, Liu and Zhang, 2014)
2018
The genomes of the type strains of Roseivivax atlanticus and Roseivivax marinus ( Rhodobacteraceae , Alphaproteobacteria ), were analysed to determine their respective Average Nucleotide Identity (ANI) and in silico DNA–DNA hybridization (DDH) values. These species were proposed and effectively published relatively closely in time (February and August 2014, respectively) and so not taking account of the other. The intergenomic relatedness between both type strains, 97.0–97.4 % ANI and 82.8 % in silico DDH, confirm that they represent members of the same genomic species. This conclusion is also supported at the phenotypic level. Since the name Roseovarius marinus was validly published earlie…
Investigating bacterial populations in styrene-degrading biofilters by 16S rDNA tag pyrosequencing
2014
Microbial biofilms are essential components in the elimination of pollutants within biofilters, yet still little is known regarding the complex relationships between microbial community structure and biodegradation function within these engineered ecosystems. To further explore this relationship, 16S rDNA tag pyrosequencing was applied to samples taken at four time points from a styrene-degrading biofilter undergoing variable operating conditions. Changes in microbial structure were observed between different stages of biofilter operation, and the level of styrene concentration was revealed to be a critical factor affecting these changes. Bacterial genera Azoarcus and Pseudomonas were among…
Taxonomic study of sucrose-positive Aeromonas jandaei-like isolates from faeces, water and eels: emendation of A. jandaei Carnahan et al. 1992
2003
Fourteen sucrose-positive Aeromonas jandaei-like isolates from fresh water and reared European eels were subjected to a polyphasic study to determine their taxonomic position. Numerical taxonomy was used to analyse phenotypic data obtained for these isolates and 43 type and reference strains representative of recognized Aeromonas species. The A. jandaei cluster (phenon 1) was defined at 81.6 % similarity (S(J)); this included the A. jandaei-like isolates, the sucrose-positive strain Aeromonas veronii biogroup sobria CECT 4910 and nearly all A. jandaei reference strains used in the study. Four other reference strains of A. veronii biogroup sobria and the type strain of Aeromonas ichthiosmia …
Jannaschia rubra sp. nov., a red-pigmented bacterium isolated from sea water.
2005
A Gram-negative, slightly halophilic, strictly aerobic, chemo-organotrophic bacterium was isolated from Mediterranean sea water near Valencia (Spain). Comparison of the almost complete 16S rRNA gene sequence showed that strain 4SM3T belonged to the Roseobacter group, with Jannaschia helgolandensis as its closest relative, with a similarity of 98·7 %. DNA–DNA hybridization analysis showed that the Mediterranean isolate had a level of relatedness of less than 42 % with J. helgolandensis and therefore that it represented a novel species of the genus Jannaschia. Phenotypic characteristics gave further evidence that the two organisms are not related at the species level. Isolate 4SM3T grows on s…
Marinomonas aquamarina sp. nov., isolated from oysters and seawater.
2005
Abstract The characterization of three bacterial strains isolated from cultured oysters and seawater at the Spanish Mediterranean coast has been performed. Strains were phenotypically and genetically characterized and the results led us to identify them as members of the genus Marinomonas . A phylogenetic analysis based on the almost complete 16S rDNA sequences clustered all three strains together (with sequence similarities around 99.8%) in the vicinity of M. communis and M. vaga sequences and distantly related to the other four species of the genus. The most closely related species was M. communis that shared 97.4–97.6% with the Mediterranean strains. DNA–DNA hybridizations were performed…
Environmental distribution of prokaryotic taxa
2010
14 pages, 5 figures, 1 table, 10 additional files avalaible [http://www.biomedcentral.com/content/supplementary/1471-2180-10- 85-S10.PDF ]
Description of Alcanivorax venustensis sp. nov. and reclassification of Fundibacter jadensis DSM 12178T (Bruns and Berthe-Corti 1999) as Alcanivorax …
2003
Two strains of a novel bacterium were isolated independently of each other, from different depths in the Mediterranean Sea, within a time period of 7 months, using two different isolation approaches that were focused on different objectives. Both strains, designated ISO1 and ISO4T, were halophilic, Gram-negative, strictly aerobic, straight rods that were oxidase- and catalase-positive. Both strains produced mucoid colonies in some defined minimal media and were able to grow with organic acids and some alkanes; they were also able to accumulate intracellular poly-beta-hydroxybutyrate granules. The G + C content of the DNA of strain ISO4T was 66 mol%. Comparative analysis of 16S rRNA gene seq…