ABSTRACT
Iron-containing o-nitrosophenol compounds have been isolated from 64 strains of microorganisms of 18 species. The analysis of author's and published data allowed to divide iron-containing microbial compounds into two physiological groups: ferri-ionophores, i. e. compounds participating in active iron transfer, and those immobilizing iron at increase in its content in medium up to 10(-4)-10(-2) M. O-nitrosophenol pigments were found to belong to the latter group. A scheme of participation of o-nitrosophenol compounds in regulation of iron metabolism in actinomycetes has been proposed.
Subject(s)
Iron/metabolism , Nitroso Compounds/metabolism , Pigments, Biological/metabolism , Streptococcus/metabolism , Biological Transport , Ferric Compounds/metabolismABSTRACT
On the basis of the cell wall composition (the presence of meso-diaminopimelic acid and madurose sugar) and according to the morphological structure, Streptomyces luteofluorescens (type culture 719, ISP 5398) is transferred to Actinomadura genus. The organism is considered to be a new species of the Actinomadura genus -- Actinomadura luteofluorescens (Shinobu, 1962) Preobrazhenskaya et Lavrova, 1974, comb. nov.