Tanase Corneliu, Ștefănescu Ruxandra, Darkó Béla, Muntean Daniela Lucia, Fărcaş Anca Corina, Socaci Sonia Ancuţa
Department of Pharmaceutical Botany, "George Emil Palade" University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, 38 Gheorghe Marinescu Street, Târgu Mureș, 540139 Mureș, Romania.
Department of Pharmacognosy and Phytotherapy, "George Emil Palade" University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, 38 Gheorghe Marinescu Street, Târgu Mureș, 540139 Mureș, Romania.
Plants (Basel). 2020 Jul 7;9(7):859. doi: 10.3390/plants9070859.
This paper aims to assess the biological responses of Mill. to beech and spruce bark crude extract application. Thus, the biological activity of bark extracts was assessed by determining the germination capacity, biomass production, histo-anatomical aspects and photo-assimilatory pigment accumulation, and by quantitative and qualitative volatile compounds analysis. The application of spruce bark extract (500 mg dry bark/100 mL solvent) resulted in a better development of the leaf tissue and an increase in foliar biomass. We observed the stimulating effect of photo-assimilating pigments accumulation, for all experimental variants, compared to the control. Also, the amount of volatile oil was significantly higher in the treated plants with spruce bark extract (500 mg dry bark/100 mL solvent). Some volatile compounds (cyclen, borneol, cryptone, santalen, and caryophyllene oxide β-farnesene) were identified only in the experimental variants. Also, in the experimental variants, an increase in the quantity of limonene, linalyl acetate and lavandulol was observed. These preliminary results showed that the beech and spruce bark extracts can have biological activities and influence the production of volatile oil in , causing significant changes in the phytochemical profile of the essential oil. Thus, forest waste bark extracts could be recommended as natural bioregulators in lavender crops.
本文旨在评估薰衣草对山毛榉和云杉树皮粗提物施用的生物反应。因此，通过测定发芽能力、生物量生产、组织解剖学特征和光合色素积累，并通过定量和定性挥发性化合物分析来评估树皮提取物的生物活性。云杉树皮提取物（500毫克干树皮/100毫升溶剂）的施用导致叶片组织发育更好，叶生物量增加。与对照相比，我们观察到所有实验变体中光合色素积累的刺激作用。此外，用云杉树皮提取物（500毫克干树皮/100毫升溶剂）处理的植物中挥发油的含量显著更高。一些挥发性化合物（环烯、冰片、隐酮、檀香烯和氧化石竹烯β-法呢烯）仅在实验变体中被鉴定出来。此外，在实验变体中，观察到柠檬烯、乙酸芳樟酯和薰衣草醇的含量增加。这些初步结果表明，山毛榉和云杉树皮提取物可能具有生物活性，并影响薰衣草中挥发油的产生，导致精油的植物化学特征发生显著变化。因此，森林废树皮提取物可被推荐为薰衣草作物中的天然生物调节剂。
