Department of Forest Sciences and Engineering, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Iran.
Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Iran.
Sci Rep. 2023 Jul 18;13(1):11587. doi: 10.1038/s41598-023-38649-x.
Viscum album L. (mistletoe) is a semiparasitic plant of the Santalaceae family. A valuable group of bioactive compounds in mistletoe are triterpene acids (TTAs), which possess anti-inflammatory and anticancer properties. Parrotia persica and Carpinus betulus are the most common hosts of mistletoe in the Hyrcanian forests of Iran. This study was performed to compare the content of oleanolic acid (OA), betulinic acid (BA), and ursolic acid (UA) in the mistletoe foliage (stems and leaves) from P. persica and C. betulus in various seasons for the first time. The results showed that OA was the prevailing TTA in all samples, while UA was found in none of them. The maximum amount of OA (12.38 mg/g dry weight [DW]) and BA (1.68 mg/g DW) was detected in V. album from P. persica in summer. The minimum amount of OA (5.58 mg/g DW) and BA (0.72 mg/g DW) was observed in that growing on C. betulus in winter. However, the mistletoe from C. betulus showed the greatest level of OA in spring (9.06 mg/g DW) and BA in summer and autumn (0.92 and 0.97 mg/g DW, respectively). The data collected in this study complement existing research on this subject from around the world.
槲寄生是桑寄生科的半寄生植物。槲寄生中具有抗炎和抗癌特性的一类有价值的生物活性化合物是三萜酸（TTAs）。在伊朗的赫卡尼亚森林中，朴树和欧洲山毛榉是槲寄生最常见的宿主。本研究首次比较了朴树和欧洲山毛榉上的槲寄生叶（茎和叶）在不同季节中齐墩果酸（OA）、桦木酸（BA）和熊果酸（UA）的含量。结果表明，OA 是所有样品中含量最多的 TTA，而 UA 则不存在于任何一种样品中。在夏季，朴树上的槲寄生中 OA（12.38mg/g 干重[DW]）和 BA（1.68mg/g DW）的含量最高。在冬季，欧洲山毛榉上的槲寄生中 OA（5.58mg/g DW）和 BA（0.72mg/g DW）的含量最低。然而，欧洲山毛榉上的槲寄生在春季的 OA（9.06mg/g DW）和夏季和秋季的 BA（0.92 和 0.97mg/g DW）含量最高。本研究收集的数据补充了世界各地关于该主题的现有研究。
