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Microbacterium Paraoxydans
''Microbacterium paraoxydans'' is a Gram-positive bacterium from the genus ''Microbacterium'' which was first isolated from the fish Nile tilapia in Mexico. This bacterium can cause disease in fish. ''Microbacterium paraoxydans'' metabolize (RS)-mandelonitrile to (R)-(-)mandelic acid Mandelic acid is an aromatic alpha hydroxy acid with the molecular formula C6H5CH(OH)CO2H. It is a white crystalline solid that is soluble in water and polar organic solvents. It is a useful precursor to various drugs. The molecule is chiral. .... ''Microbacterium paraoxydans'' is a plant growth-promoting bacteria. References Further reading * * * External linksType strain of ''Microbacterium paraoxydans'' at Bac''Dive'' - the Bacterial Diversity Metadatabase ] Bacteria described in 2003 paraoxydans {{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 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microbacterium
''Microbacterium'' is a genus of bacteria in the family Microbacteriaceae. Microbacteria are common contaminants of laboratory reagents, which can lead to their being misrepresented in microbiome data. Species ''Microbacterium'' comprises the following species: * '' M. aerolatum'' Zlamala et al. 2002 * '' M. agarici'' Young et al. 2010 * '' M. album'' Yang et al. 2018 * '' M. algeriense'' Lenchi et al. 2020 * '' M. amylolyticum'' Anand et al. 2012 * '' M. aoyamense'' Kageyama et al. 2006 * '' M. aquimaris'' Kim et al. 2008 * '' M. arabinogalactanolyticum'' (Yokota et al. 1993) Takeuchi and Hatano 1998 * '' M. arborescens'' (ex Frankland and Frankland 1889) Imai et al. 1985 * '' M. arthrosphaerae'' Kämpfer et al. 2011 * '' M. assamensis'' Kaur et al. 2011 * '' M. atlanticum'' Xie et al. 2022 * '' M. aurantiacum'' Takeuchi and Hatano 1998 * '' M. aureliae'' Kaur et al. 2016 * '' M. aurum'' Yokota et al. 1993 * '' M. awajiense'' Kageyama et al. 2008 * '' M. azadirachtae'' Madhaiya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nile Tilapia
The Nile tilapia (''Oreochromis niloticus'') is a species of tilapia, a cichlid fish native to the northern half of Africa and the Levante area, including Israel, and Lebanon. Numerous introduced populations exist outside its natural range. It is also commercially known as mango fish, nilotica, or boulti. The first name leads to easy confusion with another tilapia which is traded commercially, the mango tilapia (''Sarotherodon galilaeus''). Description The Nile tilapia reaches up to in length, and can exceed . As typical of tilapia, males reach a larger size and grow faster than females. Wild, natural-type Nile tilapias are brownish or grayish overall, often with indistinct banding on their body, and the tail is vertically striped. When breeding, males become reddish, especially on their fins. Although commonly confused with the blue tilapia (''O. aureus''), that species lacks the striped tail pattern, has a red edge to the dorsal fin (this edge is gray or black in Nile til ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico '' The World Factbook''. . making it the world's 13th-largest country by area; with approximately 12 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandelonitrile
In organic chemistry, mandelonitrile is the nitrile of mandelic acid, or the cyanohydrin derivative of benzaldehyde. Small amounts of mandelonitrile occur in the pits of some fruits. Occurrence Mandelonitrile is the aglycone part of the cyanogenic glycosides prunasin and amygdalin. The naturally occurring (''R'')-(+) enantiomer finds use as an intermediate in the preparation of optically active α-hydroxy carboxylic acids, α-hydroxy aldehydes, α-hydroxy ketones, and 2-amino alcohols.Kruse, C.G. In Collins, A.N. Sheldrake, G.N. Crosby, J., Eds. ''Chirality in Industry Chichester'', UK , (1992), 279 Mandelonitrile can break down into cyanide and benzaldehyde, a reaction that can be catalyzed by the enzyme mandelonitrile lyase. Preparation Racemic mandelonitrile may be prepared similar to many other cyanohydrins. In a one pot reaction, benzaldehyde Benzaldehyde (C6H5CHO) is an organic compound consisting of a benzene ring with a formyl substituent. It is the si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandelic Acid
Mandelic acid is an aromatic alpha hydroxy acid with the molecular formula C6H5CH(OH)CO2H. It is a white crystalline solid that is soluble in water and polar organic solvents. It is a useful precursor to various drugs. The molecule is chiral. The racemic mixture is known as ''paramandelic acid''. Isolation, synthesis, occurrence Mandelic acid was discovered in 1831 by the German pharmacist Ferdinand Ludwig Winckler (1801–1868) while heating amygdalin, an extract of bitter almonds, with diluted hydrochloric acid. The name is derived from the German "Mandel" for "almond". Mandelic acid is usually prepared by the acid-catalysed hydrolysis of mandelonitrile, which is the cyanohydrin of benzaldehyde. Mandelonitrile can also be prepared by reacting benzaldehyde with sodium bisulfite to give the corresponding adduct, forming mandelonitrile with sodium cyanide, which is hydrolyzed: : Alternatively, it can be prepared by base hydrolysis of phenylchloroacetic acid as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria Described In 2003
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 r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
