Antagonistic properties of actinomycetes from the ryzosphere of Olea europaea L.
Ivan Franko National University of Lviv
4, Hrushevskyi St., Lviv 79005, Ukraine
One hundred twenty nine actinomycetes strains were isolated from the rhizosphere of Olea europaea L. growing in the Nikita Botanical Gardens. Antimicrobial activities of the selected strains were tested against gram positive (Bacillus subtilis ATCC 31324, Sarcina lutea ATCC 4698, Staphylococcus aureus ATCC 25923) and gram negative bacteria (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853 (F-51)), phytopathogenes (Erwinia amylovora Mi2, P. syringae Mi1, P. piri Mi9, P. corrugatą 3'M), yeast (Candida famata VKM Y9) and fungi (Aspergillus awamori NF142). Some of the selected isolates had broad spectrum of the antibacterial and fungicidal activities, several strains specifically inhibited growth of P. syringae Mi1 or Candida famata VKM Y9. Obtained results indicated that the habitats of Crimean peninsula are the attractive source for the isolation and investigation of different actinomycetes strains with antagonistic activity against bacterial plant and/or human pathogens.
Keywords: actinomycetes, phytopathogenes, antagonistic activity