Ayed Amira, Polito Flavio, Mighri Hedi, Souihi Mouna, Caputo Lucia, Hamrouni Lamia, Amri Ismail, Nazzaro Filomena, De Feo Vincenzo, Hirsch Ann M, Mabrouk Yassine
Laboratory of Biotechnology and Nuclear Technology, National Center for Nuclear Sciences and Technologies (CNSTN), Sidi Thabet Technopark, Sidi Thabet 2020, Tunisia.
Higher Institute of Biotechnology of Sidi Thabet (ISBST), University of Manouba, Sidi Thabet 2020, Tunisia.
Plants (Basel). 2023 Aug 26;12(17):3068. doi: 10.3390/plants12173068.
species are known to produce metabolites such as essential oils (EOs) that play an important role in the control of weeds, pests and phytopathogenic fungi. The aims of this study were as follows: (i) to determine the chemical composition of the EOs derived from eight species growing in Tunisia, and (ii) to study their possible antifungal and herbicidal activities. EOs were obtained by hydrodistillation from the dried leaves of eight species, namely, , , , , , , and , and the determination of their composition was achieved by GC and GC-MS. The EOs' antifungal activities were tested against four strains, and the EOs' herbicidal properties were evaluated on the germination and seedling growth of three annual weeds (, and ) and three cultivated crop species (, and ). The EO yields ranged between 0.12 and 1.32%. The most abundant components found were eucalyptol, α-pinene, -cymene, -pinocarveol, α-terpineol and globulol. All EOs showed significant antifungal activity against the four phytopathogenic strains. EO exhibited the highest level of antifungal activity, and the greatest inhibition of seed germination was obtained even at lowest concentrations used. These findings suggested that , and EOs could have applications in agriculture as possible biopesticides, as antagonists and as bioherbicides.
已知一些物种会产生诸如精油（EOs）之类的代谢产物，这些代谢产物在控制杂草、害虫和植物病原真菌方面发挥着重要作用。本研究的目的如下：（i）确定源自突尼斯生长的八个物种的精油的化学成分，以及（ii）研究它们可能的抗真菌和除草活性。通过水蒸馏法从八个物种（即[此处八个物种名称缺失]）的干燥叶片中获得精油，并通过气相色谱（GC）和气相色谱 - 质谱联用（GC - MS）来确定其成分。测试了这些精油对四种[此处菌株名称缺失]菌株的抗真菌活性，并评估了它们对三种一年生杂草（[此处杂草名称缺失]）和三种栽培作物品种（[此处作物品种名称缺失]）的发芽和幼苗生长的除草特性。精油产量在0.12%至1.32%之间。发现的最丰富成分是桉叶油素、α - 蒎烯、对伞花烃、松樟醇（此处pinocarveol英文拼写有误，推测正确拼写为pino carveol）、α - 松油醇和球松素。所有精油对四种植物病原[此处菌株名称缺失]菌株均表现出显著的抗真菌活性。[此处物种名称缺失]精油表现出最高水平的抗真菌活性，并且即使在使用的最低浓度下也能对种子发芽产生最大抑制作用。这些发现表明，[此处三个物种名称缺失]的精油作为可能的生物农药、[此处antagonists表述有误，推测为antifungal agents抗真菌剂]和生物除草剂在农业中可能具有应用价值。
