Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, Egypt.
Department of Floriculture Ornamental Horticulture and Garden Design, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt.
Nat Prod Res. 2020 Dec;34(23):3394-3398. doi: 10.1080/14786419.2019.1566824. Epub 2019 Jan 28.
Essential oil (EO) from L. leaves was evaluated against the growth of some phytopathogenic bacteria including , , and using the disc diffusion method and minimum inhibitory concentration (MIC) evaluation. Ten compounds in the EO with dominance of Artemisia ketone (2,5,5-trimethyl-2,6-heptadien-4-one) (77.92%) and ledol (19.92%) were revealed. The antibacterial activity indicated efficacy of essential oil against majority of strains isolated. The most effective action was recorded against , by 7.5 and 10 µL of oil, with 18.33 mm and 100 μg/mL as zone inhibition and MIC, respectively, whereas the lowest activity was exhibited against (diameter inhibition = 6.66 mm at 10 µL of oil, MIC = 100 μg/mL). The strain appears to be resistant to the oil when the activity is measured by 10 µL of oil but its growth inhibition was reported with a MIC of 100 μg/mL.
采用圆盘扩散法和最小抑菌浓度（MIC）评价法，评估了 L. 叶中的精油对几种植物病原菌（包括 、 、 和 ）生长的抑制作用。该精油中含有 10 种化合物，其中以青蒿酮（2,5,5-三甲基-2,6-庚二烯-4-酮）（77.92%）和 ledol（19.92%）为主导。抗菌活性表明，该精油对分离出的大多数菌株均有疗效。对 的抑制作用最为明显，7.5 和 10 μL 油的抑菌圈直径分别为 18.33 和 100 μg/mL，MIC 分别为 100 μg/mL 和 100 μg/mL；而对 的抑制作用最小，10 μL 油的抑菌圈直径为 6.66 mm，MIC 为 100 μg/mL。当以 10 μL 油的活性进行测量时，菌株 似乎对该油具有抗性，但报道称其生长抑制的 MIC 为 100 μg/mL。
