Abstract
Six plant extracts obtained from different parts such as the leaves, flowers and seeds of four species of the endemic plants in Turkey were tested on a total of 14 microorganisms, 10 of which were bacterial strains and 4 yeast strains. Verbascum eriocarpum (flower) extract was found to be effective against Staphylococcus aureus;Stachys cretica subsp. anatolica (leaf and flower) and Heracleum paphlago-nicum(seed) extracts were found to be effective against Bacillus subtilis; and Alcea apterocarpa (seed and sepal) extract was found to be effective against Pseudomonas aeruginosa. No antimicrobial activity was observed in Heracleum paphlagonicum(leaf) and Alcea apterocarpa (leaf) plant extracts. The minimum inhibitory concentration­ (MIC) values of the plant extracts were calculated to be between ≥ 0.859 mg/ml and ≥ 110.5 mg/ml and the minimum bacteriocidal concentration (MBC) values were calculated to be between ≥ 3.44 mg/ml and ≥ 132 mg/ml. Key words: Antimicrobial activity, endemic plants, plant extract.
Highlights
Turkey has a considerably notable and rich flora in terms of existing plant diversity
Six plant extracts obtained from different parts such as the leaves, flowers and seeds of four species of the endemic plants in Turkey were tested on a total of 14 microorganisms, 10 of which were bacterial strains and 4 yeast strains
Verbascum eriocarpum extract was found to be effective against Staphylococcus aureus; Stachys cretica subsp. anatolica and Heracleum paphlagonicum extracts were found to be effective against Bacillus subtilis; and Alcea apterocarpa extract was found to be effective against Pseudomonas aeruginosa
Summary
Turkey has a considerably notable and rich flora in terms of existing plant diversity. It is located in a region where three fitogeographical regions intersect and constitutes a bridge between Southern Europe and Southwestern Asia and Anatolia. It is the origination and diversification centre of many genus and sections and it has ecological and fitogeographical diversity. Extracts and oils of these plants have formed the basis of many applications, including raw and processed food preservation, pharmaceutical, alternative medicine, and natural therapies. The antimicrobial activity of various plant extracts against many microorganisms has been studied in Turkey (Baytop, 1984; Ertürk, 2006; Kele et al, 2001; Dı rak et al, 2002; Dülger, 2005; Dülger and Gonuz, 2004)
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