Pyrroxamycin is a new antibiotic. Pyrroxamycin was isolated from the culture broth of Streptomyces sp. S46506. Pyrroxamycin is active against Gram-positive bacteria and dermatophytes.
Actinopyrone A is a pyrone isolated from S. pactum with diverse biological activities. It has selective and potent antimicrobial activity against H. pylori (MIC = 0.1 ng mL) with no activity against other Gram-negative bacteria including E. coli, K. pneumoniae, P. aeruginosa, and B. fragilis. Actinopyrone A also mildly inhibits growth of Gram-positive bacteria and dermatophytes with MIC values ranging from <6.25 to 25 μg mL. Intravenous administration of actinopyrone A (30 μg kg) increases coronary blood flow in dogs by 196.2%.
Parconazole Free Base is used in veterinary as an oral fungicide with a broad-spectrum activity against dermatophytes, yeasts, and others fungi. This compound does not have any antibacterial effect. The mechanism of action involves inhibition of the fungal cytochrome P450 dependent 14alpha-dimethylation of lanosterol to ergosterol.
Plumieride has plant growth inhibiting properties, it shows strong fungitoxicity against some dermatophytes causing dermatomycosis to animals and human beings. Plumieride also has antioxidant , and immunomodulatory activities.