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Geodermatophilus Aquaeductus
''Geodermatophilus aquaeductus'' is a Gram-positive, aerobic and gamma-ray resistant bacterium from the genus ''Geodermatophilus ''Geodermatophilus'' is a Gram-positive genus of bacteria from the phylum Actinomycetota. Species ''Geodermatophilus'' comprises the following species: * '' G. africanus'' Montero-Calasanz et al. 2013 * '' G. amargosae'' Montero-Calasanz et a ...'' which has been isolated from the surface of a calcarenite stone from the ruins of the Aqueduct of Hadrian in Tunisia. References Bacteria described in 2015 Actinomycetia {{Actinobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LPSN
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature of Prokaryotes The International Code of Nomenclature of Prokaryotes (ICNP) formerly the International Code of Nomenclature of Bacteria (ICNB) or Bacteriological Code (BC) governs the scientific names for Bacteria and Archaea.P. H. A. Sneath, 2003. A short hist .... The database was curated from 1997 to June 2013 by Jean P. Euzéby. From July 2013 to January 2020, LPSN was curated by Aidan C. Parte. In February 2020, a new version of LPSN was published as a service of the Leibniz Institute DSMZ, thereby also integrating the Prokaryotic Nomenclature Up-to-date service. References External links List of Prokaryotic names with Standing in Nomenclature [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram-positive
In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bacteria take up the crystal violet stain used in the test, and then appear to be purple-coloured when seen through an optical microscope. This is because the thick peptidoglycan layer in the bacterial cell wall retains the stain after it is washed away from the rest of the sample, in the decolorization stage of the test. Conversely, gram-negative bacteria cannot retain the violet stain after the decolorization step; alcohol used in this stage degrades the outer membrane of gram-negative cells, making the cell wall more porous and incapable of retaining the crystal violet stain. Their peptidoglycan layer is much thinner and sandwiched between an inner cell membrane and a bacterial outer membrane, causing them to take up the counterstain (saf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerobic Organism
Aerobic means "requiring air," in which "air" usually means oxygen. Aerobic may also refer to * Aerobic exercise, prolonged exercise of moderate intensity * Aerobics, a form of aerobic exercise * Aerobic respiration, the aerobic process of cellular respiration * Aerobic organism Aerobic means "requiring air," in which "air" usually means oxygen. Aerobic may also refer to * Aerobic exercise, prolonged exercise of moderate intensity * Aerobics Aerobics is a form of physical exercise that combines rhythmic aerobic exe ..., a living thing with an oxygen-based metabolism See also * Anaerobic (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamma-ray
A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nucleus, atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically shorter than those of X-rays. With frequency, frequencies above 30 exahertz (), it imparts the highest photon energy. Paul Ulrich Villard, Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation ''gamma rays'' based on their relatively strong penetration of matter; in 1900 he had already named two less penetrating types of decay radiation (discovered by Henri Becquerel) alpha particle, alpha rays and beta particle, beta rays in ascending order of penetrating power. Gamma rays from radioactive decay are in the energy range from a few kiloelectronvolts (keV) to approximately 8 megaelectronvolts (MeV), corres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geodermatophilus
''Geodermatophilus'' is a Gram-positive genus of bacteria from the phylum Actinomycetota. Species ''Geodermatophilus'' comprises the following species: * '' G. africanus'' Montero-Calasanz et al. 2013 * '' G. amargosae'' Montero-Calasanz et al. 2014 * '' G. aquaeductus'' Hezbri et al. 2015 * '' G. arenarius'' Montero-Calasanz et al. 2013 * '' G. bullaregiensis'' Hezbri et al. 2015 * '' G. chilensis'' Castro et al. 2020 * '' G. daqingensis'' Wang et al. 2017 * '' G. dictyosporus'' Montero-Calasanz et al. 2015 * '' G. marinus'' Li et al. 2019 * '' G. nigrescens'' Nie et al. 2012 * '' G. normandii'' Montero-Calasanz et al. 2013 * '' G. obscurus'' Luedemann 1968 (Approved Lists 1980) * '' G. poikilotrophus'' corrig. Montero-Calasanz et al. 2015 * '' G. pulveris'' Hezbri et al. 2016 * '' G. ruber'' Zhang et al. 2011 * '' G. sabuli'' Hezbri et al. 2015 * '' G. saharensis'' Montero-Calasanz et al. 2013 * '' G. siccatus'' Montero-Calasanz et al. 2013 * '' G. telluris'' Montero-Cala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcarenite
Calcarenite is a type of limestone that is composed predominantly, more than 50 percent, of detrital (transported) sand-size (0.0625 to 2 mm in diameter), carbonate grains. The grains consist of sand-size grains of either corals, shells, ooids, intraclasts, pellets, fragments of older limestones and dolomites, other carbonate grains, or some combination of these. Calcarenite is the carbonate equivalent of a sandstone. The term calcarenite was originally proposed in 1903 by GrabauGrabau, A.W. (1903) ''Paleozoic coral reefs.'' Geological Society of America Bulletin. vol. 14, pp. 337-352.Grabau, A.W. (1904) ''On the classification of sedimentary rocks.'' American Geologist. vol. 33, pp. 228-247. as a part of his calcilutite, calcarenite and calcirudite carbonate classification system based upon the size of the detrital grains composing a limestone.Flügel, E. (2010) ''Microfacies of Carbonate Rocks'', 2nd ed. Springer-Verlag Berlin, Germany. 976 pp. Neuendorf, K.K.E., J.P. Mehl, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaghouan Aqueduct
The Zaghouan Aqueduct or Aqueduct of Carthage is an ancient Roman aqueduct, which supplied the city of Carthage, Tunisia with water. From its source in Zaghouan it flows a total of 132 km, making it among the longest aqueducts in the Roman Empire. 40 ha of its length are also classified as an Important Bird Area (TN013) as the cavities and holes in the aqueduct are used as nesting and roosting sites for falcons and other species. Date The date of the construction of the aqueduct is not entirely clear. Sources mention a visit by the Emperor Hadrian in 128, with which a five-year-long drought is meant to have come to an end. The water shortage resulting from the drought might have convinced him that the people should not rely only on rainwater anymore. A second event that might have inspired it was the opening of the Baths of Antonius in Carthage in 162. These facilities on the same scale as the Imperial baths in Rome demanded a steady supply of water, which could not be fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunisia
) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , coordinates = , official_languages = Arabic Translation by the University of Bern: "Tunisia is a free State, independent and sovereign; its religion is the Islam, its language is Arabic, and its form is the Republic." , religion = , languages_type = Spoken languages , languages = Minority Dialects : Jerba Berber (Chelha) Matmata Berber Judeo-Tunisian Arabic (UNESCO CR) , languages2_type = Foreign languages , languages2 = , ethnic_groups = * 98% Arab * 2% Other , demonym = Tunisian , government_type = Unitary presidential republic , leader_title1 = President , leader_name1 = Kais Saied , leader_ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria Described In 2015
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 re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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