Metabolic products of microorganisms

✍ J. Ernst; G. Winkelmann 📂 Article 📅 1974 🏛 Springer 🌐 English ⚖ 586 KB

Different derivatives of coprogen B (desacetyl coprogen) and eoprogen were prepared to study their iron transport properties in Neurospora crassa arg-5, ota, aga. With increasing N-acyl chain length the rates of iron chelate uptake could significantly be enhanced in the order N-acetyl-<N-propionyl-<

✍ K. Uchida; H. Zähner 📂 Article 📅 1976 🏛 Springer 🌐 English ⚖ 496 KB

Rinamycin interfered with DNA-polymerase I of Escherichia coli in cell-free systems more effectively than actinomycin C. Its inhibitory action could be relieved by increasing the concentration of polymerase. The rinamycin concentrations that caused effective inhibition of the RNA-polymerase reaction

Metabolic products of microorganisms

✍ G. U. Brillinger; W. Heberle; B. Weber; H. Achenbach 📂 Article 📅 1978 🏛 Springer 🌐 English ⚖ 600 KB

In the course of a screening for new metabolites from fungi we isolated a substance with antimicrobial activity from cultures of Aspergillus duricaulis (CBS 481.65) (Tü 679). It was antagonized by putrescine, spermidine, spermine, arginine, citrulline, lysine, ornithine, in higher concentration by a

Metabolic products of microorganisms

✍ Heidrun Anke; Hans Zähner; Wilfried A. König 📂 Article 📅 1978 🏛 Springer 🌐 English ⚖ 400 KB

C l a d o s p o r i n was isolated from the cultures of three species of the genus Eurotium. Cladosporin inhibited the growth of several fungi and at very low c o n c e n t r a t i o n s the growth of Bacillus brevis a n d Clostridium pasteurianum. Bacillus subtilis a n d most other Gram-positive ba

Metabolic products of microorganisms

✍ Pache, W. ;Z�hner, H. 📂 Article 📅 1969 🏛 Springer-Verlag ⚖ 573 KB

Metabolic products of microorganisms

✍ G. Winkelmann 📂 Article 📅 1974 🏛 Springer 🌐 English ⚖ 765 KB

The transport of ~SFe3+, mediated by various fungal sideramines, was tested using an ornithine-deficient mutant of lqeurospora crassa (arg-5, ota, aga), which can be cultivated completely free of its own sideramines. We have found that Neurospora crassa is able to accumulate iron by its own chelate