Khalil Anam, Mansha Shumaila, Sajid Zahoor Ahmad, Aftab Faheem
Plant Developmental and Regenerative Biology Laboratory, Institute of Botany, University of the Punjab, Q. A. Campus, Lahore, 54590, Pakistan.
BMC Plant Biol. 2025 Jul 9;25(1):894. doi: 10.1186/s12870-025-06144-2.
The genus Mentha has promising antifungal, antiviral, antibacterial, antioxidant and plant growth promoting activities. Mint hydrosols is a product of hydro-distillation of mint plants and is obtained during the extraction process of essential oils. The present study attempts to investigate the role of mint hydrosol in promoting growth of tomato plants. Seedlings of uniform size raised from healthy seeds were planted in pots under open field conditions. The well-established tomato plants were treated with different concentrations (0, 25, 50 and 100%) of freshly prepared mint hydrosol as foliar spray twice a week. The hydrosol was applied for six weeks. At the time of completion of the experiment, data for different vegetative growth parameters such as shoot length (cm), number of leaves, root length (cm) and stem diameter (cm) were noted. A suitable scale was used to measure the length of shoot and root. Increased root and shoot length (58.05 and 23.46 cm from 40.99 to 16.45 cm, respectively), fresh and dry weight of shoots and roots (28.0 and 3.43 g) were observed at 100% hydrosol treatment. There was a significant increase in number of flowers (5.41), leaves, and fruits (3.79) after 6 weeks at 100% hydrosol treatment. Fruit size and weight (3.79 cm, and 31.12 g, respectively) was also higher in tomato plants treated with 100% mint hydrosol. Activities of antioxidant enzymes were also significantly enhanced, e.g., superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) (41.0 U. mg of protein, 5.1 U. mL of enzyme and 5.28 U. mL of enzyme from 23.09 U. mg of protein, 3.01 U. mL of enzyme and 3.12 U. mL of enzyme, respectively) by treatment with 100% hydrosol. Relative water content, total chlorophyll content, total phenols, polyphenols oxidase and uptake of various ions (Na, K, Mg, and Zn) also increased significantly (45.1 mg. L, 34.67 mg. L, 1.59 mg. L, 1.03 mg. L, respectively) in hydrosol treated plants. It can, therefore, be concluded that application of peppermint hydrosol enhances the growth, antioxidant activity and mineral uptake in tomato.
薄荷属植物具有良好的抗真菌、抗病毒、抗菌、抗氧化及促进植物生长的活性。薄荷纯露是薄荷植物水蒸馏的产物，在精油提取过程中获得。本研究旨在探讨薄荷纯露在促进番茄植株生长中的作用。将从健康种子培育出的大小均匀的幼苗种植在露天条件下的花盆中。对生长良好的番茄植株每周进行两次叶面喷施不同浓度（0%、25%、50%和100%）的新鲜制备的薄荷纯露，持续六周。在实验结束时，记录不同营养生长参数的数据，如茎长（厘米）、叶片数、根长（厘米）和茎直径（厘米）。使用合适的尺子测量茎和根的长度。在100%纯露处理下，观察到根和茎长度增加（分别从40.99厘米和16.45厘米增加到58.05厘米和23.46厘米），茎和根的鲜重和干重增加（28.0克和3.43克）。在100%纯露处理6周后，花的数量（5.41朵）、叶片数和果实数（3.79个）显著增加。用100%薄荷纯露处理的番茄植株的果实大小和重量（分别为3.79厘米和31.12克）也更高。抗氧化酶的活性也显著增强，例如，超氧化物歧化酶（SOD）、过氧化氢酶（CAT）和过氧化物酶（POD）（分别从23.09 U. mg蛋白质、3.01 U. mL酶和3.12 U. mL酶增加到41.0 U. mg蛋白质、5.1 U. mL酶和5.28 U. mL酶）。在纯露处理的植株中，相对含水量、总叶绿素含量、总酚、多酚氧化酶以及各种离子（钠、钾、镁和锌）的吸收也显著增加（分别为45.1毫克·升、34.67毫克·升、1.59毫克·升、1.03毫克·升）。因此，可以得出结论，薄荷纯露的施用可促进番茄的生长、抗氧化活性及矿物质吸收。
