In search of new sustainable biopesticides, we determined the phytochemical profiles, acaricidal and insecticidal properties of EOs distilled from the aerial parts of three Mexican Bursera species. Results were obtained by GC-MS analysis and three different bioassays, indicating that the EO of Bursera glabrifolia exhibited high relative abundancies of α-pinene, β-myrcene, and α-phellandrene, as well as promising pesticidal activity against Spodoptera littoralis larvae (LD50,90 = 32.4, 107.2 µg/larva), and Musca domestica (LD50,90 = 23.2, 103.2, and 13.5, 77.4 µg/female or male adult, respectively) and Tetranychus urticae adults (LD50,90 = 7.4, 30.3 µg/cm2). The Bursera lancifolia and Bursera linanoe samples contained mainly D-limonene or linalyl acetate and linalool, respectively, and showed generally less potent pesticidal properties (S. littoralis larva, LD50,90 = 45.4, 154.4 and 52.2, 158.7 µg/larva, respectively; female M. domestica adult, LD50,90 = 69.2, 210.9 and 45.1, 243.8 µg/female adult, respectively; T. urticae adults, LD50,90 = 20.7, 90.5 and 17.5, 71.4 µg/cm2, respectively). However, the EO of B. linanoe exhibited an especially pronounced activity against male M. domestica adults (LD50,90 = 10.6, 77.2 µg/male adult). Our findings prove the pesticidal potential of Mexican Bursera species in the context of integrated pest management (IPM) and highlight the importance of conducting further research to elucidate both the active principles and possibly existing synergistic effects.

• Klíčová slova
• Acaricide, Bursera glabrifolia, Bursera lancifolia, Bursera linanoe, Essential oil, Insecticide, Integrated pest management (IPM), Pesticide,
• MeSH
• akaricidy * MeSH
• Bursera * MeSH
• insekticidy * chemie   MeSH
• larva MeSH
• nadzemní části rostlin chemie   MeSH
• oleje prchavé * chemie   MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• akaricidy * MeSH
• insekticidy * MeSH
• oleje prchavé * MeSH

BACKGROUND: To overcome the escalating problems associated with infectious diseases and drug resistance, discovery of new antimicrobials is crucial. The present study aimed to carry out in vitro antimicrobial analysis of 15 medicinal plant species selected according to their traditional medicinal uses in Gurage and Silti Zones, south central Ethiopia. METHODS: Ethanol extracts of various plant parts were investigated for their antimicrobial activity against 20 bacterial and one yeast strains. The minimum inhibitory concentration (MIC) was determined by broth microdilution method. RESULTS: Asparagus africanus, Guizotia schimperi, Lippia adoensis var. adoensis and Premna schimperi were active against Candida albicans, Enterococcus faecalis and Staphylococcus aureus at a concentration of 512 μg/ml or lower. Strong antibacterial activity (MIC≥128 μg/ml) was observed for G. schimperi extract against 17 resistant and sensitive Staphylococcus strains, at a concentration comparable to standard antibiotics. Moreover, this extract showed higher antibacterial activity for the test against S. aureus ATCC 33591, ATCC 33592, SA3 and SA5 strains (128-256 μg/ml) than oxacillin (512 μg/ml). CONCLUSIONS: The study revealed in vitro antibacterial activity of plants used in folk medicine in south central Ethiopia. The usefulness of these plants, in particular of G. schimperi, should be confirmed through further phytochemical and toxicity analyses.

• MeSH
• antibakteriální látky farmakologie   MeSH
• antifungální látky farmakologie   MeSH
• antiinfekční látky farmakologie   MeSH
• Asparagus (rostlina) MeSH
• Asteraceae MeSH
• Bacteria účinky léků   MeSH
• Candida albicans účinky léků   MeSH
• Enterococcus účinky léků   MeSH
• hluchavkovité MeSH
• léčivé rostliny * MeSH
• Lippia MeSH
• Magnoliopsida * MeSH
• mikrobiální testy citlivosti MeSH
• rostlinné extrakty farmakologie   MeSH
• Staphylococcus aureus účinky léků   MeSH
• tradiční lékařství * MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Etiopie MeSH
• Názvy látek
• antibakteriální látky MeSH
• antifungální látky MeSH
• antiinfekční látky MeSH
• rostlinné extrakty MeSH