Effects of developed thyme and oregano essential oil formulations on Monilinia laxa and Monilinia fructicola

B. Tanović, J. Hrustić, M. Mihajlović, M. Grahovac, Marija Stevanović, S. Gašić
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Abstract

Essential oils have been well-known for their antimicrobial properties for a very long time. Some of them have been effectively used in human medicine for decades. Our earlier investigation revealed a great potential of thyme and oregano essential oils as crop protectants against some postharvest fruit pathogens. The effects of formulated thyme and oregano essential oils on Monilinia laxa and Monilinia fructicola were studied in vitro and in vivo. In vitro antagonistic assays were performed on solidified PDA medium using a slightly modified agar overlay technique, while in vivo experiments were conducted on inoculated apple fruits. In vitro essays showed that the developed formulations (emulsifiable concentrates - EC) significantly inhibited the mycelial growth of Monilinia spp. Experiments in vivo, performed on inoculated apple fruits, revealed that the developed formulations provided a significant level of Monilinia spp. suppression. To our knowledge, another EC formulation of oregano essential oil intended for use in Monilinia spp. control has never been developed before. The presented results are initial findings and evaluation of the activity of the developed products should therefore proceed under field conditions to determine their efficacy and activity spectrum, and to estimate economic aspects of their use.
开发的百里香和牛至精油制剂对软毛猴和果毛猴的影响
很长一段时间以来,精油一直以其抗菌特性而闻名。其中一些已经在人类医学中有效使用了几十年。我们早期的调查显示,百里香和牛至精油作为作物保护剂具有很大的潜力,可以对抗一些采后水果病原体。研究了百里香精油和牛至精油的体外和体内作用。体外拮抗实验采用微改良的琼脂覆盖技术在凝固的PDA培养基上进行,体内实验在接种的苹果果实上进行。体外实验表明,所开发的配方(乳化浓缩液- EC)可显著抑制念珠菌菌丝的生长,体内实验表明,所开发的配方对念珠菌具有显著的抑制作用。据我们所知,以前从未开发过另一种用于控制念珠菌病的牛至精油的EC配方。所提出的结果是初步发现,因此应在实地条件下对开发产品的活性进行评价,以确定其功效和活性谱,并估计其使用的经济方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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