Institute of Living Systems, Immanuel Kant Baltic Federal University, 236040 Kaliningrad, Russia.
Front Biosci (Elite Ed). 2022 Feb 8;14(1):3. doi: 10.31083/j.fbe1401003.
The family, one of the most important herbaceous and shrub plant families, includes a wide variety of plants with biological and medicinal uses. This study aimed to conduct a comparative analysis of phenolic compounds content and biological activity of extracts from eight species of e plants, cultivated in a temperate climate, and to study the effect of the foliar salicylic acid application on these parameters.
plants (, , , , , , , ) cultivated on field experimental sites. Plants were sprayed with salicylic acid at a concentration of 1 mM. The untreated with salicylic acid plants were used as control.
The highest contents of hydroxycinnamic acids and flavonoids in control plants were observed in (6.4 ± 0.6 mg g-1 and 6.5 ± 0.4 mg g-1 respectively). The highest content of phenolic compounds was found in (13.8 ± 0.7 mg g-1). Among the control plants, , and were characterized by the highest antioxidant activity. All the studied extracts had the ability to inhibit α-amylase and α-glucosidase. Significant positive correlations were revealed between the antioxidant activity and the contents of hydroxycinnamic acids, total phenolic compounds, and flavonoids. A high degree of correlation was found between the α-amylase inhibitory activity and the content of hydroxycinnamic acids ( = 0.72, ≤ 0.05), as well as between the α-glucosidase inhibitory activity and the content of flavonoids ( = 0.83, ≤ 0.05) and hydroxycinnamic acids ( = 0.81, ≤ 0.05). The foliar treatment with salicylic acid led to an increase in the contents of hydroxycinnamic acids (in 6 species), flavonoids (in 2 species), total phenolic compounds (in 7 species), antioxidant activity (in 5 species), as well as in α-amylase (in 4 species) and α-glucosidase (in 5 species) inhibitory activity compared to the control plants. was the most susceptible to foliar treatment with salicylic acid. In this plant species, a significant increase in all studied biochemical parameters was noted.
The results obtained on the stimulating effects of salicylic acid can be used to increase the nutritional and pharmacological value of plants of the family cultivated in temperate climates.
作为最重要的草本和灌木植物家族之一，包含了具有生物和药用用途的多种植物。本研究旨在对八种温带气候下栽培的草本植物提取物中的酚类化合物含量和生物活性进行比较分析，并研究叶施水杨酸对这些参数的影响。
在田间试验区种植植物（、、、、、、、）。用 1mM 浓度的水杨酸喷洒植物。未用水杨酸处理的植物作为对照。
在对照植物中，（6.4±0.6mg g-1 和 6.5±0.4mg g-1）观察到羟基肉桂酸和类黄酮的含量最高。在对照植物中，（13.8±0.7mg g-1）发现酚类化合物含量最高。在对照植物中，、和具有最高的抗氧化活性。所有研究的提取物都具有抑制α-淀粉酶和α-葡萄糖苷酶的能力。在抗氧化活性与羟基肉桂酸、总酚类化合物和类黄酮含量之间揭示了显著的正相关关系。在α-淀粉酶抑制活性与羟基肉桂酸含量之间发现了高度相关性（=0.72，≤0.05），以及在α-葡萄糖苷酶抑制活性与类黄酮含量（=0.83，≤0.05）和羟基肉桂酸含量（=0.81，≤0.05）之间发现了高度相关性。与对照植物相比，叶施水杨酸导致羟基肉桂酸（6 种）、类黄酮（2 种）、总酚类化合物（7 种）、抗氧化活性（5 种）以及α-淀粉酶（4 种）和α-葡萄糖苷酶（5 种）抑制活性的含量增加。对水杨酸的叶处理最敏感。在这种植物中，所有研究的生化参数都显著增加。
获得的水杨酸刺激作用的结果可用于提高温带气候下栽培的 科植物的营养和药理学价值。
