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Picein
Picein is a phenolic compound found in mycorrhizal roots of Norway spruces (''Picea abies''). It is the glucoside of piceol. See also *Pungenin Pungenin is a phenolic compound found in the needles of Blue Spruce (''Picea pungens''). It is the glucoside of 3,4-dihydroxyacetophenone. Chemical Ecology The compound serves a feeding deterrent against Spruce Budworm larvae. See also *Pice ... References Phenol glucosides Aromatic ketones {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piceol
Piceol is a phenolic compound found in the needles and in mycorrhizal roots of Norway spruces ('' Picea abies''). Picein is the glucoside of piceol. Uses Piceol is used in the synthesis of several pharmaceutical drugs including octopamine, sotalol, bamethan, and dyclonine. Piceol can be used to make acetaminophen by oxime formation with hydroxylamine and subsequent Beckmann rearrangement in acid. Anticonvulsants are also possible by Mannich reaction: Metabolism Diprenylated derivatives of piceol can be isolated from ''Ophryosporus macrodon''. 4-Hydroxyacetophenone monooxygenase is an enzyme that transforms piceol into O-acetyl hydroquinone. This enzyme is found in ''Pseudomonas fluorescens''. See also * Paroxypropione, where the acetyl In organic chemistry, acetyl is a functional group with the chemical formula and the structure . It is sometimes represented by the symbol Ac (not to be confused with the element actinium). In IUPAC nomenclature, acetyl is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picea Abies
''Picea abies'', the Norway spruce or European spruce, is a species of spruce native to Northern Europe, Northern, Central Europe, Central and Eastern Europe. It has branchlets that typically hang downwards, and the largest cones of any spruce, 9–17 cm long. It is very closely related to the Siberian spruce (''Picea obovata''), which replaces it east of the Ural Mountains, and with which it hybridizes freely. The Norway spruce has a wide distribution for it being planted for its wood, and is the species used as the main Christmas tree in several countries around the world. It was the first gymnosperm to have its genome sequenced. The Latin binomial nomenclature, specific epithet ''abies'' means “like ''Abies'', Fir tree” Description Norway spruce is a large, fast-growing evergreen coniferous tree growing tall and with a trunk diameter of 1 to 1.5 m. It can grow fast when young, up to 1 m per year for the first 25 years under good conditions, but becomes slower once ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pungenin
Pungenin is a phenolic compound found in the needles of Blue Spruce (''Picea pungens''). It is the glucoside of 3,4-dihydroxyacetophenone. Chemical Ecology The compound serves a feeding deterrent against Spruce Budworm larvae. See also *Picein Picein is a phenolic compound found in mycorrhizal roots of Norway spruces (''Picea abies''). It is the glucoside of piceol Piceol is a phenolic compound found in the needles and in mycorrhizal roots of Norway spruces (''Picea abies''). Pic ... References Phenol glucosides Aromatic ketones {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycorrhiza
A mycorrhiza (from Greek μύκης ', "fungus", and ῥίζα ', "root"; pl. mycorrhizae, mycorrhiza or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its root system. Mycorrhizae play important roles in plant nutrition, soil biology, and soil chemistry. In a mycorrhizal association, the fungus colonizes the host plant's root tissues, either intracellularly as in arbuscular mycorrhizal fungi (AMF or AM), or extracellularly as in ectomycorrhizal fungi. The association is sometimes mutualistic. In particular species or in particular circumstances, mycorrhizae may have a parasitic association with host plants. Definition A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, such as phosp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glucoside
A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes. The name was originally given to plant products of this nature, in which the other part of the molecule was, in the greater number of cases, an aromatic aldehydic or phenolic compound (exceptions are Jinigrin and Jalapin or Scammonin). It has now been extended to include synthetic ethers, such as those obtained by acting on alcoholic glucose solutions with hydrochloric acid, and also the polysaccharoses, e.g. cane sugar, which appear to be ethers also. Although glucose is the most common sugar present in glucosides, many are known which yield rhamnose or iso-dulcite; these may be termed pentosides. Much attention has been given to the non-sugar parts (aglyca) of the molecules; the constitutions of many have been determined, and the compounds synthesi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenol Glucosides
Phenol (also called carbolic acid) is an aromatic organic compound with the molecular formula . It is a white crystalline solid that is volatile. The molecule consists of a phenyl group () bonded to a hydroxy group (). Mildly acidic, it requires careful handling because it can cause chemical burns. Phenol was first extracted from coal tar, but today is produced on a large scale (about 7 billion kg/year) from petroleum-derived feedstocks. It is an important industrial commodity as a precursor to many materials and useful compounds. It is primarily used to synthesize plastics and related materials. Phenol and its chemical derivatives are essential for production of polycarbonates, epoxies, Bakelite, nylon, detergents, herbicides such as phenoxy herbicides, and numerous pharmaceutical drugs. Properties Phenol is an organic compound appreciably soluble in water, with about 84.2 g dissolving in 1000 mL (0.895 M). Homogeneous mixtures of phenol and water at phenol to wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
