Anagram & Information om | Engelska ordet PULVINIC

Exempel på hur man kan använda PULVINIC i en mening

• In 1831, in the course of a study of the constituents of lichens (Cetraria Vulpina), the French chemist and pharmacist Antoine Bebert discovered a compound named vulpinic acid, the first known naturally occurring methyl ester of pulvinic acid.
• Vulpinic acid is derived biosynthetically by esterification from pulvinic acid; pulvinate itself derives from the aromatic amino acids phenylalanine and tyrosine, via dimerization and oxidative ring-cleavage of arylpyruvic acids, a process that also produces the related pulvinones.
• Various lichen products have been reported in the family, including depsides, depsidones, and derivatives of pulvinic acid.
• Chemically, the genus contains an array of compounds including orcinol and ß-orcinol depsides, along with depsidones, dibenzofurans, anthraquinones, xanthones, and chemical derivatives of pulvinic acid.
• The genus is characterized by the presence of the secondary metabolites pulvinic acid and vulpinic acid, compounds that when combined with usnic acid, give the species their characteristic yellow and green colors.
• Some species contain pulvinic acid-related pigments; in these species the soredia and pseudocyphellae can be bright yellow.
•  curtisii are, however, entirely different from the pulvinic acid compounds found in Pulveroboletus species, which invalidates the chemotaxonomical rational for generic placement in Pulveroboletus.
• Many natural products such as ascorbic acid (vitamin C), penicillic acid, pulvinic acids, and abyssomicins possess the β-keto-γ-butyrolactone motif of tetronic acid.
• Secondary chemicals associated with the Rhizocarpales include depsides, depsidones, and chemical derivatives of pulvinic acid.
• Secondary compounds that have been detected in the lichen (using high-performance liquid chromatography) include calycin, pulvic acid lactone, vulpinic acid, and pulvinic acid.
• Secondary chemicals that have been detected in Candelariella deppeanae (using high-performance liquid chromatography) include calycin, pulvic acid lactone, vulpinic acid, and pulvinic acid.
• Usnic acid and isousnic acid are lichen products found in the species; it does not contain pulvinic acid derivatives, which contrasts it with similar species in the Arthoniaceae, such as Chrysothrix caesia.
• In terms of chemical composition, calycin, pulvic acid lactone, vulpinic acid, and pulvinic acid have all been detected in Candelariella biatorina.
• Several lichen products are found in the genus, including calicin, pulvinic acid, pulvinic dilactone, and vulpinic acid.
• Chrysothrix chlorina contains a suite of lichen products, including calycin, leprapinic acid, vulpinic acid, zeorin, and trace amounts of pulvinic acid and unidentified terpenoids.
• Its primary lichen products include leprapinic acid, with smaller amounts of calycin, vulpinic acid, and pulvinic dilactone.
• From a chemical standpoint, the genus contains substances like calycin, pulvinic acid, pulvinic dilactone, and vulpinic acid.
• Chrysothrix palaeophila contains vulpinic acid as a major secondary metabolite (lichen product), along with pulvinic dilactone in minor or trace amounts.
• Pseudocyphellaria carpoloma contains several lichen products of various chemical classes, including the depsides methyl evernate, tenuiorin, methyl lecanorate, methyl gyrophorate; the triterpenoid, hopane derivatives hopane-7-beta,22-diol and hopane-6-alpha; the depsidones stictic acid, cryptostictic acid and constictic acid; and the pigments pulvinic dilactone, calycin, and pulvinic acid.

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