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Pulvinic acids are
natural chemical pigments found in some lichens,
derived biosynthetically from the
aromatic amino acids phenylalanine and tyrosine,...
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three classes of
chemical compounds:
pulvinic acid-type family, himanimides, and
polyine acids.
Within the
pulvinic acid-type family, atromentin-derived...
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unique chemical substances it contains, such as calycin,
pulvinic and
vulpinic acids, and
pulvinic acid lactone. The
genus Opeltiella was cir****scribed by...
- Many
natural products such as
ascorbic acid (vitamin C),
penicillic acid,
pulvinic acids, and
abyssomicins possess the β-keto-γ-butyrolactone
motif of tetronic...
- He
named the
resulting diacid pulvinic acid. The
German chemist Jacob Volhard elucidated the
constitution of
pulvinic acid by
synthesizing it through...
- chromatography)
include calycin,
pulvic acid lactone,
vulpinic acid, and
pulvinic acid. Westberg,
Martin (2007). "Candelariella (Candelariaceae) in western...
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thallus typically breaks and
eventually dissolves into soredia.
Calycin and
pulvinic acid are the
major secondary metabolites present in the lichen. Liu, Dong;...
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characteristic that was once
considered unique to this genus. Some
species contain pulvinic acid-related pigments; in
these species the
soredia and pseudocyp****ae...
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methyl variegate, the red variegatorubin, and
several derivatives of
pulvinic acid. The
presence of
these pigments suggests a
chemotaxic relationship...
- The
genus is
characterized by the
presence of the
secondary metabolites pulvinic acid and
vulpinic acid,
compounds that when
combined with
usnic acid, give...
