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
β Scribed by G. U. Brillinger; W. Heberle; B. Weber; H. Achenbach
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 600 KB
- Volume
- 116
- Category
- Article
- ISSN
- 0302-8933
No coin nor oath required. For personal study only.
β¦ Synopsis
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) (TΓΌ 679). It was antagonized by putrescine, spermidine, spermine, arginine, citrulline, lysine, ornithine, in higher concentration by aspraagine and glutamine too. The effect of ethylenediaminetetraacetate on the susceptibility of Streptomyces viridochromogenes (TΓΌ 57) and Bacillus subtilis ATCC 6051 to this antibiotic has been studied. The substance was characterized and identified as cyclopaldic acid.
π SIMILAR VOLUMES
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-<
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
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