Antimicrobial properties and DNA interactions studies of 3-hetarylazoquinoline-2,4-diol compounds

Authors : Fatma ÖZTÜRK, Leyla AÇIK, İzzet ŞENER, Fikret KARCI

Pages : 293-302

Doi:10.3906/vet-1211-26

View : 20 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The purpose of the present study was to evaluate the antimicrobial effects of 3-hetarylazoquinoline-2,4-diols insert ignore into journalissuearticles values(19);, having substituted or unsubstituted thiazole, benzothiazole, benzimidazole, triazole, isoxazole, and thiadiazole moieties at the 3-position, on bacterial and yeast strains. In addition, compounds and DNA interaction with pUC18 plasmid DNA were studied. The biological effects of these molecules were compared with potential antibiotics ampicillin,~chloramfenicol insert ignore into journalissuearticles values(for bacteria);, and ketoconozole insert ignore into journalissuearticles values(for yeast);. According to the results, all compounds except 8 have mild to moderate activity against some of the bacterial strains tested, and none of the compounds have activity against the fungi C. tropicalis and C. albicans. Compounds 1 and 6 have moderate activities against B. cereus and B. subtilis, and compounds 5 and 6 have moderate activities and 1 has mild activity against E. coli. Compound 2 has a mild effect on all bacterial strains except E. coli ATCC 25922, P. vulgaris, and S. aureus. Compounds 3-5 and 7 have mild activity against some of the bacterial strains tested. Compound 9 has mild activity against all bacterial strains except E. coli ATCC 25922. Compound 8 has no antibacterial effect. Compounds and DNA interaction results indicate that as the compounds bind to DNA, unwinding of supercoiled form I DNA takes place to change it from the negatively supercoiled form I to the nicked form II and linear form III DNA. The following studies showed that, among the synthesized compounds, 3-9 seem to be promising candidates possessing DNA cleavage activities besides anti-microbial properties to serve as chemical nucleases and chemotherapeutic agents.
Keywords : Quinoline 2, 4 diol, azo dye, antimicrobial property, DNA interaction