A novel, cyclic, tripyrrole pigment from Actinomadura (nocardia) madurae.
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Chemical Phenomena↗
Biomedical subjects
N N Gerber
Publications and source records attributed to N N Gerber.
Prodigiosin-like pigments from Actinomadura (Nocardia) pelletieri and Actinomadura madurae.
Thirteen red strains of Actinomadura (Nocardia) pelletieri and three of A. madurae were shown to produce prodigiosin-like pigments. Both of the two major pigments which were observed on thin-layer chromatograms had R(F) values significantly greater than prodigiosin. The main pigment from A. madurae 953 was shown by mass and nuclear magnetic resonance spectroscopies to be nonylprodigiosin. The major pigment from A. pellitieri had a C(11)H(22) side chain in a ring form, but it was distinctly different from metacycloprodigiosin. "Prodiginine" was proposed as a name for the invariant aromatic portion of the prodigiosin structure.
Anti-Bacterial Agents↗
A volatile metabolite of actinomycetes, 2-methylisoborneol.
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Actinomycetales↗
N1-pyrromycinone, a new tetracenequinone (anthracyclinone) from Streptomyces sp. 1-8.
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Anthracenes↗
The biosynthesis of 1,6-phenazinediol 5,10-dioxide (Iodinin) by Brevibacterium iodinum.
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Amino Acids↗
Phenazines, phenoxazinones, and dioxopiperazines from Streptomyces thioluteus.
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Oxazines↗
The structures of two naphthoquinone pigments from an actinomycete.
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Actinomycetales↗
Geosmin, an earthly-smelling substance isolated from actinomycetes.
Geosmin, an earthy-smelling substance, has been isolated from several actinomycetes. Production of 1 mg per liter of whole broth was obtained from Streptomyces griseus LP-16. After preliminary separations, pure geosmin was isolated in milligram amounts by gas chromatography. Geosmin is a neutral oil, with an approximate boiling point of 270 C, which contains carbon and hydrogen, but no nitrogen. It undergoes a reaction with acid to give odorless argosmin, a neutral oil, with an approximate boiling point of 230 C, which contains only carbon and hydrogen. Specific rotation and ultraviolet- and infrared-absorbtion spectra were determined for both.
Chemical Phenomena↗