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Arthrobacter Tecti
''Arthrobacter tecti'' is a Gram-positive, non-spore-forming and non-motile bacterium species from the genus ''Arthrobacter'' which has been isolated from a biofilm which covered the Servilia tomb from the Roman necropolis of Carmona in Carmona, Spain.Deutsche Sammlung von Mikroorganismen und Zellkulturen The Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures GmbH (German: ''Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH''), located in Braunschweig, is a research infrastructure in th ...br>/ref> References Further reading * External linksType strain of ''Arthrobacter tecti'' at Bac''Dive'' - the Bacterial Diversity Metadatabase Bacteria described in 2005 Micrococcaceae {{Actinobacteria-stub ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spore
In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa. Bacterial spores are not part of a sexual cycle, but are resistant structures used for survival under unfavourable conditions. Myxozoan spores release amoeboid infectious germs ("amoebulae") into their hosts for parasitic infection, but also reproduce within the hosts through the pairing of two nuclei within the plasmodium, which develops from the amoebula. In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote which develops into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthrobacter
''Arthrobacter'' (from the Greek, "jointed small stick”) is a genus of bacteria that is commonly found in soil. All species in this genus are Gram-positive obligate aerobes that are rods during exponential growth and cocci in their stationary phase. ''Arthrobacter'' have a distinctive method of cell division called "snapping division" or reversion in which the outer bacterial cell wall ruptures at a joint. Description ''Arthrobacter'' can be grown on mineral salts pyridone broth, where colonies have a greenish metallic center on incubated at . Under the microscope, ''Arthrobacter'' appear as rods when rapidly dividing, and cocci when in stationary phase. Dividing cells may also appear as chevrons ("V" shapes). Other notable characteristics are that it can use pyridone as its sole carbon source, and that its cocci are resistant to desiccation and starvation. Use in industry ''Arthrobacter'', like other bacterial genera including '' Brevibacterium'', ''Microbacterium'', and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomb Of Servilia
The tomb of Servilia is an Ancient Roman tomb located in Carmona, Spain. See also * History of Carmona, Spain The history of Carmona begins at one of the oldest urban sites in Europe, with nearly five thousand years of continuous occupation on a plateau rising above the ''vega'' (plain) of the River Corbones in Andalusia, Spain. The city of Carmona, Spai ... References External links Servilii Ancient Roman buildings and structures in Spain Buildings and structures in the Province of Seville Tombs {{Spain-hist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Carmona, Spain
The history of Carmona begins at one of the oldest urban sites in Europe, with nearly five thousand years of continuous occupation on a plateau rising above the ''vega'' (plain) of the River Corbones in Andalusia, Spain. The city of Carmona lies thirty kilometres from Seville on the highest elevation of the sloping terrain of the Los Alcores escarpment, about 250 metres above sea level. Since the first appearance of complex agricultural societies in the Guadalquivir valley at the beginning of the Neolithic period, various civilizations have had an historical presence in the region. All the different cultures, peoples, and political entities that developed there have left their mark on the ethnographic mosaic of present-day Carmona. Its historical significance is explained by the advantages of its location. The easily defended plateau on which the city sits, and the fertility of the land around it, made the site an important population center. The town's strategic position overlook ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carmona, Spain
Carmona is a town of southwestern Spain, in the province of Seville; it lies 33 km north-east of Seville. Carmona is built on a ridge overlooking the central plain of Andalusia; to the north is the Sierra Morena, with the peak of San Cristobal (mountain), San Cristobal to the south. The city is known for its thriving trade in wine, olive oil, grain and cattle, and holds an annual fair in April. It is ascribed both to the Comarcas of Spain, comarca of Campiña de Carmona and the comarca of Los Alcores. Geography Location Carmona is located in the southwest of the Iberian Peninsula. It lies at about 249 metres above sea level, on a NE–SO ridge at the northeastern end of Los Alcores tableland, dominating over the meadows of the river, a left-bank tributary of the Guadalquivir. Climate Carmona has a Mediterranean climate with a sunny spring and typically some rain in that season. In October, the average temperature ranges from a minimum of 13 °C to a maximum of 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spain
, image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' ( Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , image_map = , map_caption = , image_map2 = , capital = Madrid , coordinates = , largest_city = Madrid , languages_type = Official language , languages = Spanish , ethnic_groups = , ethnic_groups_year = , ethnic_groups_ref = , religion = , religion_ref = , religion_year = 2020 , demonym = , government_type = Unitary parliamentary constitutional monarchy , leader_title1 = Monarch , leader_name1 = Felipe VI , leader_title2 = Prime Minister , leader_name2 = Pedro Sánchez , legislature = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutsche Sammlung Von Mikroorganismen Und Zellkulturen
The Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures GmbH (German: ''Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH''), located in Braunschweig, is a research infrastructure in the Leibniz Association. Also the DSMZ is the world's most diverse collection of bioresources (status 2021: 75,000 bioresources). These include microorganisms (including more than 32,000 bacterial strains, 690 archaeal strains, 7,000 strains of yeasts and fungi) as well as more than 840 human and animal cell cultures, over 1. 500 plant viruses, over 940 bacteriophages, and 250 plasmids (status 2021). Since 2010, the scientific director of the Leibniz Institute DSMZ has been Jörg Overmann, a microbiologist with a PhD. He holds a professorship in microbiology at the Technical University of Braunschweig. Since August 2018, he has led the institute in a dual leadership with Bettina Fischer as administrative director. History Structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria Described In 2005
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 relationships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
