Anti(myco)bacterial and Antifungal Activities of Seed Pods of Four Vincetoxicum Taxa Growing in Turkey

Abstract

The anti(myco)bacterial and antifungal effects of ethanolic extracts obtained from seed pods of four Vincetoxicum taxa (V. canescens subsp. canescens, V. canescens subsp. pedunculata, V. fuscatum subsp. fuscatum and V. parviflorum) were examined against two Gram (+) bacterial strains [Staphylococcus aureus (ATCC 25925), Bacillus subtilis (ATCC 6633)], three Gram (-) bacterial strains [Acinetobacter baumannii (ATCC 02026), Escherichia coli (ATCC 25923), Aeromonas hydrophila (ATCC 95080)] and Mycobacterium tuberculosis H37Rv, and three fungal strains [Candida glabrata (ATCC 90030), Candida tropicalis (ATCC 750), Candida parapsilosis (ATCC 22019)] by using the broth microdilution method. As reference antimicrobial agents Ampicillin, Ethambutol, Isoniazid and Fluconazole were used. Against A. baumannii all the tested extracts exhibited significant antibacterial activity with MIC values ranging from 31.25 to 62.5 μg/ml when compared to reference drug Ampicillin (MIC value: 125 μg/ml). Especially, the extract of seed pods of V. fuscatum subsp. fuscatum was found the most effective extract against A. baumannii (MIC value: 31.25 μg/ml).

Keywords: Anti(myco)bacterial activity, Antifungal activity, Vincetoxicum, Seed pod, Extract.