ACCUMULATION OF FERULIC ACID UNDER DROUGHT STRESS IN IN VITRO CULTURE OF GARDENIA JASMONIDE VARIEGATA

Minia Journal of Agricultural Research and Development Pub Date : 2023-12-01 DOI:10.21608/mjard.2023.329135

Amal A. El Ashry, Hanan S. Ebrahim, Riham M. B. El –Assaly, M. K. E. –. Bahr, A. Gabr

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Abstract

Gardenia is regarded as an ornamental and medicinal plant that includes important phenolic compounds,as well as some of anti-inflammatory flavonoids. The most prevalent hydroxyl cinnamic acid in plants is ferulic acid, which is 4-hydroxy-3-methoxy cinnamic acid. It demonstrates a wide range of biological activity that can be utilized as a substrate for the synthesis of chlorogenic acid. The current study aimed to evaluate the accumulation of ferulic acid and antioxidant capacity in response to ABA and PEG and mimic the draught stress, in the in vitro culture of Gardenia jasmonides Variegata. Different concentrations of abscisic acid (ABA) and polyethylene glycol (PEG) (MW: 4000–6000) were applied individually in the culture medium of Gardenia jasmonide Variegata callus cultures to evaluate their effects on the growth as well as the ferulic acid content and antioxidant capacity. The results showed that maximum values for growth indicators (fresh and dry weight) at the fourth week of culturing (9.524 and 0.446 g, respectively) with the addition of 5 g/l PEG (M.W. 6000). As for ferulic acid, PEG (M.W. 6000) at 7.5 g/l gave 2.708

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干旱胁迫下阿魏酸在栀子花离体培养中的积累

栀子是一种观赏和药用植物，含有重要的酚类化合物和一些抗炎黄酮类化合物。植物中最常见的羟基肉桂酸是阿魏酸，它是 4-羟基-3-甲氧基肉桂酸。它具有广泛的生物活性，可用作合成绿原酸的底物。本研究旨在评估阿魏酸的积累和抗氧化能力，以及阿魏酸和 PEG 对栀子花离体培养的反应，并模拟吃水胁迫。在栀子花茧培养物的培养基中分别添加了不同浓度的脱落酸（ABA）和聚乙二醇（PEG）（分子量：4000-6000），以评估它们对栀子花生长以及阿魏酸含量和抗氧化能力的影响。结果表明，添加 5 克/升 PEG（M.W. 6000）后，生长指标（鲜重和干重）在培养第四周达到最大值（分别为 9.524 克和 0.446 克）。至于阿魏酸，7.5 克/升的 PEG（M.W. 6000）可产生 2.708

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Minia Journal of Agricultural Research and Development

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