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Micrococcus Lylae
''Micrococcus lylae'' is a gram positive bacterium. The normal habitat for this ''Micrococcus'' species is skin, dust, and water. Its type strain is ATCC 27566. It grows in tetrads, irregular clusters, and cubical packets of eight, and colonies are often brightly pigmented. They are strictly aerobic 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 cel .... See also *'' Kocuria kristinae'' References External linksVumicro entry [...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 (s ... [...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] |
Micrococcus
''Micrococcus'' (mi’ krō kŏk’ Əs) is a genus of bacteria in the Micrococcaceae family. ''Micrococcus'' occurs in a wide range of environments, including water, dust, and soil. Micrococci have Gram-positive spherical cells ranging from about 0.5 to 3 micrometers in diameter and typically appear in tetrads. They are catalase positive, oxidase positive, indole negative and citrate negative. ''Micrococcus'' has a substantial cell wall, which may comprise as much as 50% of the cell mass. The genome of ''Micrococcus'' is rich in guanine and cytosine (GC), typically exhibiting 65 to 75% GC-content. Micrococci often carry plasmids (ranging from 1 to 100 MDa in size) that provide the organism with useful traits. Some species of ''Micrococcus'', such as ''M. luteus'' (yellow) and ''M. roseus'' (red) produce yellow or pink colonies when grown on mannitol salt agar. Isolates of ''M. luteus'' have been found to overproduce riboflavin when grown on toxic organic pollutants like pyridine ... [...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] |
Kocuria Kristinae
''Rothia kristinae'' is a Gram positive bacterium. ''R. kristinae'' is a common human skin organism, but can cause opportunistic infections in humans. Background In 1974, a novel bacterium was isolated from the skin of a healthy adult woman. The novel species was originally named ''Micrococcus kristinae'', and was named after the person from which it was first isolated (Kristin Holding). (''Micrococcus lylae'' was also first isolated during the same study) In 1995, the species was reclassified into the genus ''Kocuria'' as ''Kocuria kristinae''. In 2018, further studies reclassified the species into genus '' Rothia'' as ''Rothia kristinae''. ''R. kristinae'' is Gram-positive, and the cells are coccoid which tend to group together as tetrads. It is slightly facultatively anaerobic, and forms pale cream to pale orange colonies when grown on agar. The optimum growth range is 25–37 °C, and is resistant to lysozyme. ''R. kristinae'' is a common skin and oral microorganism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrococcaceae
The family ''Micrococcaceae'' includes bacterial genera of Gram positive cocci that inhabit the air and skin, such as ''Micrococcus luteus''. Genera The family ''Micrococcaceae'' comprises the following genera: * '' Acaricomes'' Pukall ''et al''. 2006 * '' Arthrobacter'' Conn and Dimmick 1947 (Approved Lists 1980) * '' Auritidibacter'' Yassin ''et al''. 2011 * '' Citricoccus'' Altenburger ''et al''. 2002 * '' Enteractinococcus'' Cao ''et al''. 2012 * '' Falsarthrobacter'' Busse and Moore 2018 * '' Galactobacter'' Hahne ''et al''. 2019 * '' Garicola'' Lo ''et al''. 2015 * '' Glutamicibacter'' Busse 2016 * '' Haematomicrobium'' Schumann and Busse 2017 * ''Kocuria'' Stackebrandt ''et al''. 1995 * '' Micrococcoides'' Tóth ''et al''. 2017 * ''Micrococcus'' Cohn 1872 (Approved Lists 1980) * '' Neomicrococcus'' Prakash ''et al''. 2015 * '' Nesterenkonia'' Stackebrandt ''et al''. 1995 * '' Paenarthrobacter'' Busse 2016 * '' Paeniglutamicibacter'' Busse 2016 * '' Pseudarthrobacter'' B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
