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Liquiritin elicitation can increase the content of medicinally important glucosinolates and phenolic compounds in Chinese kale plants

文献类型： 外文期刊

作者： Akram, Waheed 1 ; Saeed, Taiba 1 ; Ahmad, Aqeel 1 ; Yasin, Nasim A. 3 ; Akbar, Muhammad 4 ; Khan, Waheed U. 5 ; Ahmed, 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Guangdong Key Lab New Technol Res Vegetables, Guangzhou, Peoples R China

2.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangzhou, Peoples R China

3.Univ Punjab, Inst Agr Sci, Lahore, Pakistan

4.Univ Gujrat, Dept Bot, Gujrat, Pakistan

5.Univ Punjab, Coll Earth & Environm Sci, Lahore, Pakistan

6.Univ Austral Chile, Fac Ciencias, Inst Farm, Valdivia, Chile

关键词： Brassica oleracea var. alboglabra; Chinese kale; liquiritin; elicitor; glucosinolates; phenolics

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.638； 五年影响因子：3.802 ）

ISSN： 0022-5142

年卷期： 2020 年 100 卷 4 期

页码：

收录情况： SCI

摘要： BACKGROUND: Brassica oleracea var. alboglabra (Chinese kale) is an important vegetable grown in southern China. This study was aimed at searching for environmentally friendly and affordable approaches to increase the production of medicinally relevant glucosinolates and phenolic compounds in Chinese kale plants. For this purpose, the foliar application of liquiritin at 0 (control), 250, 500 and 750 ppm was tested starting from the four-leaf stage and repeated every two weeks until plants were two months old. RESULTS: Foliar application of liquiritin in Chinese kale plants significantly increased glucosinolates and total phenolic content, in a dose-dependent manner. Compared with control plants, 2.3- and 1.9-fold increases in yields of glucosinolates and total phenolic content, respectively, were corroborated in Chinese kale plants treated with 750 ppm of liquiritin. Along with rises in the content of eight different glucosinolates, liquiritin elicitation effectively increased the concentration of glycosilated and acylated flavonoids and hydroxycinnamic acids. The expression of genes involved in glucosinolate and phenolic biosynthesis was significantly higher in liquiritin-treated plants as compared to controls. CONCLUSIONS: Liquiritin elicitation is a feasible and environmentally friendly practice for increasing the production of medicinally important glucosinolates and phenolic compounds in Chinese kale, which may improve this plant's value as a nutraceutical food. This study also contributes to understanding the molecular mechanisms underlying liquiritin elicitation. This is the first report documenting the use of liquiritin for an elicitation purpose in plants. (C) 2019 Society of Chemical Industry.

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