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Nervonic Acid
Nervonic acid (24:1, n−9) is a fatty acid. It is a monounsaturated analog of lignoceric acid (24:0). It is also known as selacholeic acid and ''cis''-15-tetracosenoic acid. Its name derives from the Latin word ''wikt:nervus, nervus'', meaning nerve or sinew. It exists in nature as an elongation product of oleic acid (18:1 Δ9), its immediate precursor being erucic acid. Nervonic acid is particularly abundant in the white matter of animal brains and in peripheral nervous tissue where nervonyl sphingolipids are enriched in the myelin sheath of nerve fibers. In the same way, recent studies have concluded that nervonic acid is implicated as an intermediate in the biosynthesis of nerve cell myelin. This acid is an important member of the group of the cerebrosides, which are fatty acids of the glycosphingolipids group, important components of the muscles and the central nervous system and peripheral. Indeed, it is one of the major fatty acids in brain sphingolipids, normally accou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigma-Aldrich
Sigma-Aldrich (formally MilliporeSigma) is an American chemical, life science, and biotechnology company that is owned by the German chemical conglomerate Merck Group. Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company. It grew through various acquisitions until it had over 9,600 employees and was listed on the Fortune 1000. The company is headquartered in St. Louis and has operations in approximately 40 countries. In 2015, the German chemical conglomerate Merck Group acquired Sigma-Aldrich for $17 billion. The company is currently a part of Merck's life science business and in combination with Merck's earlier acquired Millipore Corporation, Millipore, operates as MilliporeSigma. History Sigma Chemical Company of St. Louis and Aldrich Chemical Company of Milwaukee were both American specialty chemical companies when they merged in August 1975. The company grew throughout the 1980s and 1990s, with significant expansion in fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adrenoleukodystrophy
Adrenoleukodystrophy (ALD) is a disease linked to the X chromosome. It is a result of fatty acid buildup caused by peroxisomal fatty acid beta oxidation which results in the accumulation of very long chain fatty acids in tissues throughout the body. The most severely affected tissues are the myelin in the central nervous system, the adrenal cortex, and the Leydig cells in the testes. The long chain fatty acid buildup causes damage to the myelin sheath of the neurons of the brain, resulting in seizures and hyperactivity. Other symptoms include problems in speaking, listening, and understanding verbal instructions. Clinically, ALD presents as a heterogeneous disorder, showing several distinct phenotypes, and no clear pattern of genotype–phenotype correlation. As an X-linked disorder, ALD presents most commonly in males; however, approximately 50% of heterozygote females show some symptoms later in life. Approximately two-thirds of ALD patients will present with the childhood ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudomonas Atlantica
''Pseudoalteromonas atlantica'' is a marine bacterium, which has been shown to act as a primary producer of biofilms and exhibit virulence against ''Cancer pagurus'', a species of crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the ..., through secretion of extracellular products. References External links *Type strain of ''Pseudoalteromonas atlantica'' at Bac''Dive'' - the Bacterial Diversity Metadatabase Alteromonadales Bacteria described in 1995 {{Alteromonadales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neocallimastix Frontalis
''Neocallimastix'' is a genus of obligately anaerobic rumen fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ... in the family Neocallimastigaceae. A specialised group of chytrids grow in the rumen of herbivorous animals, where they degrade cellulose and thus play a primary role in the complex microbial ecology of the rumen. References External links * Neocallimastigomycota Fungus genera {{Fungus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mold (fungus)
A mold () or mould () is one of the structures certain fungi can form. The dust-like, colored appearance of molds is due to the formation of spores containing fungal secondary metabolites. The spores are the dispersal units of the fungi. Not all fungi form molds. Some fungi form mushrooms; others grow as single cells and are called microfungi (for example yeasts). A large and taxonomically diverse number of fungal species form molds. The growth of hyphae results in discoloration and a fuzzy appearance, especially on food. The network of these tubular branching hyphae, called a mycelium, is considered a single organism. The hyphae are generally transparent, so the mycelium appears like very fine, fluffy white threads over the surface. Cross-walls (septa) may delimit connected compartments along the hyphae, each containing one or multiple, genetically identical nuclei. The dusty texture of many molds is caused by profuse production of asexual spores ( conidia) formed by di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malania Oleifera
''Malania oleifera'' is a species of plant in the Olacaceae family, the only species in the genus ''Malania''. It is a medium-sized tree, tall, that is endemic to southern China where it can be found in Western Guangxi and South-Eastern Yunnan provinces. Known as "garlic-fruit tree" or ‘suantouguo’ (蒜头果) by local communities due to its garlic-shaped fruits, it is threatened by logging and habitat loss. Notable for its substantial phytochemical value, its seed has the highest-known proportion of nervonic acid (C24H46O2, PubChem CID: 5281120). Nervonic acid is an important component in myelin Myelin is a lipid-rich material that surrounds nerve cell axons (the nervous system's "wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon. The myelinated axon can be ... biosynthesis in the central and peripheral nervous system, and has been proposed to enhance human brain function. To aid this resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliophila Longifola
''Heliophila'' is a genus of flowering plants in the family Brassicaceae. Members of this genus are either annuals or perennials and some are popular as ornamental plants. Endemic to southern Africa, the majority of the approximately 80 species grow in South Africa, particularly the Cape Floristic Region, while a few extend into the Namib Desert. Taxonomic history The first recognised published description of ''Heliophila'' appears in the second edition of ''Species Plantarum'' by Carl Linnaeus, printed in 1763. He attributes his description, however, to Nicolaas Laurens Burman, a Dutch botanist. The generic name ''Heliophila'' is Latin but originally derived from the Ancient Greek words ''hēlios'' (ἥλιος), meaning "sun", and ''phílos'' (φίλος), meaning "dear" or "beloved", and refers to the blooms opening in sun and closing at night or in overcast conditions, a habit of many of the species within the genus. In general, contention abounds regarding phylogenetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardamine Gracea
''Cardamine'' is a large genus of flowering plants in the mustard family, Brassicaceae, known as bittercresses and toothworts. It contains more than 200 species of annuals and perennials. Species in this genus can be found worldwide, except the Antarctic, in diverse habitats. The name ''Cardamine'' is derived from the Greek ''kardaminē'', water cress, from ''kardamon'', pepper grass. Description The leaves can have different forms, from minute to medium in size. They can be simple, pinnate or bipinnate. They are basal and cauline (growing on the upper part of the stem), with narrow tips. They are rosulate (forming a rosette). The blade margins can be entire, serrate or dentate. The stem internodes lack firmness. The nearly radially symmetrical flowers grow in a racemose many-flowered inflorescence or in corymbs. The white, pink or purple flowers are minute to medium-sized. The petals are longer than the sepals. The fertile flowers are hermaphroditic. Taxonomy The genus ''Card ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunaria Annua
''Lunaria annua'', called honesty or annual honesty in English, is a species of flowering plant in the cabbage and mustard family Brassicaceae. It is native plant, native to the Balkans and south west Asia, and cultivated throughout the temperate climate, temperate world. Description It is an annual plant, annual or biennial plant, biennial growing to tall by broad, with large, coarse, pointed oval leaves with marked serrations. The leaves are hairy, the lower ones long-stalked, the upper ones stalkless.Parnell, J. and Curtis, T. 2012 ''Webb's An Irish Flora.'' Cork University Press In spring and summer it bears terminal racemes of white or violet flowers, followed by showy, green through light brown, translucent, disc-shaped silicles (not true botanical seedpods). When a silicle is ripe and dry, a valve on each of its sides readily falls off, and its seeds fall off a central membrane which has a silvery sheen, in diameter; the membrane can persist on a plant throughout a wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunaria Biennis
''Lunaria annua'', called honesty or annual honesty in English, is a species of flowering plant in the cabbage and mustard family Brassicaceae. It is native to the Balkans and south west Asia, and cultivated throughout the temperate world. Description It is an annual or biennial growing to tall by broad, with large, coarse, pointed oval leaves with marked serrations. The leaves are hairy, the lower ones long-stalked, the upper ones stalkless.Parnell, J. and Curtis, T. 2012 ''Webb's An Irish Flora.'' Cork University Press In spring and summer it bears terminal racemes of white or violet flowers, followed by showy, green through light brown, translucent, disc-shaped silicles (not true botanical seedpods). When a silicle is ripe and dry, a valve on each of its sides readily falls off, and its seeds fall off a central membrane which has a silvery sheen, in diameter; the membrane can persist on a plant throughout a winter depending on the weather. These silicles are much used in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunaria
''Lunaria'', common names honesty, dollar plant, money-in-both-pockets, money plant, moneywort, moonwort, and silver dollar; is a genus of flowering plants in the family Brassicaceae. It is native to central and southern Europe and North America. Species include: *'' L. annua'' ( syn. ''L. biennis''), annual or biennial *'' L. elongata'' *'' L. rediviva'', perennial *'' L. telekiana''. rare Balkan species The Latin name ''Lunaria'' means "moon-like" and refers to the plants' decorative seedpods. They have hairy toothed leaves and terminal racemes of white or violet flowers in Spring and Summer, followed by prominent, translucent, disc-shaped seedpods, which are frequently seen in flower arrangements. They are widely grown as ornamental plants in gardens, and have become naturalised in many temperate In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triglyceride
A triglyceride (TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids (from ''tri-'' and ''glyceride''). Triglycerides are the main constituents of body fat in humans and other vertebrates, as well as vegetable fat. They are also present in the blood to enable the bidirectional transference of adipose fat and blood glucose from the liver, and are a major component of human skin oils. Many types of triglycerides exist. One specific classification focuses on saturated and unsaturated types. Saturated fats have ''no'' C=C groups; unsaturated fats feature one or more C=C groups. Unsaturated fats tend to have a lower melting point than saturated analogues; as a result, they are often liquid at room temperature. Chemical structure Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. Alcohols have a hydroxyl (HO–) group. Organic acids have a carboxyl (–COOH) group. Alcohols and organ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
