Salicylic Acid and Chitosan Elicitors: Pre-Harvest Foliar Applications Improve Antioxidant Activity by Increasing Phenolic Compounds in Achillea gypsicola Hub-Mor

IF 2.5 3区化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Chemistry & Biodiversity Pub Date : 2025-03-10 DOI:10.1002/cbdv.202402716

Muhammed Akif Açıkgöz

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Abstract

Salicylic acid (SA) and chitosan (CH) play an important role in the defense mechanism of plants by increasing secondary metabolite production in plants. In this study, their effects on volatile oil composition, phenolics, and antioxidant activity of Achillea gypsicola were investigated. Treatments included control (water + ethanol), 0.5-, 2-, and 8-mM SA, and 2, 4, and 8 g L⁻¹ CH. The process is completely randomized with four replications, with two harvests between 2021 and 2022. As a result, 4 g L⁻¹ CH significantly increased 1,8-cineole and borneol production. The highest total phenolic content (TPC) and total flavonoid (TFC) were obtained from the 8 g L⁻¹ CH treatment. LC–MS/MS analysis revealed a 2-fold increase in chlorogenic acid, 1.01-fold increase in gallic acid, and 0.56-fold increase in protocatechuic acid from 4 and 8 g L⁻¹ CH treatments. Strong positive correlations were found between DPPH radical scavenging assay and iron ions chelating assay (0.803**), TFC (0.556**), and TPC (0.562**).

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水杨酸和壳聚糖激发剂：收获前叶面应用通过增加水杨酸和壳聚糖的酚类化合物提高水杨酸和壳聚糖的抗氧化活性。

水杨酸（SA）和壳聚糖（CH）通过增加植物次生代谢产物的产生，在植物防御中发挥重要作用。本研究考察了它们对水蛭挥发油成分、酚类物质和抗氧化活性的影响。处理包括对照、0.5、2和8 mm SA和对照2、4和8 g L-1 CH。该试验完全随机设置，4个重复，在2021 - 2022年间两次收获。特别是4 g L-1 CH显著提高了1,8-桉叶脑和冰片脑的产量。总酚（TPC）和总黄酮（TFC）以8 g L-1 CH处理最高。LC-MS/MS分析显示，4和8 g L-1 CH处理的绿原酸增加2倍，没食子酸增加1.01倍，原儿茶酸增加0.56倍。DPPH自由基清除能力与铁离子螯合能力（0.803 **）、TFC（0.556 **）、TPC（0.562 **）呈显著正相关。

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来源期刊

Chemistry & Biodiversity 环境科学-化学综合

CiteScore

3.40

自引率

10.30%

发文量

475

审稿时长

2.6 months

期刊介绍： Chemistry & Biodiversity serves as a high-quality publishing forum covering a wide range of biorelevant topics for a truly international audience. This journal publishes both field-specific and interdisciplinary contributions on all aspects of biologically relevant chemistry research in the form of full-length original papers, short communications, invited reviews, and commentaries. It covers all research fields straddling the border between the chemical and biological sciences, with the ultimate goal of broadening our understanding of how nature works at a molecular level. Since 2017, Chemistry & Biodiversity is published in an online-only format.