Effect of gibberellic acid on SQS (squalene synthase) gene expression and physiological characteristics of Glycyrrhiza glabra

Khedri, SH. (2023) Effect of gibberellic acid on SQS (squalene synthase) gene expression and physiological characteristics of Glycyrrhiza glabra. Masters thesis, university of zabol.

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Abstract

Glycyrrhiza is one of the important medicinal plants that is in danger of extinction. that is taken into consideration for its valuable compounds such as glycyrrhizin. squalene synthase is an important enzyme in phenylpropanoid pathway. The literature indicated that plant hormones affect gene expression in plants and increase the production of secondary metabolites. In addition, the hormones stimulate the immune system through transcriptional activation of defense related genes, and in turns, increase induced resistance of plants. Therefore, in order to evaluate, the effect of gibberellic acid on SQS (squalene synthase) gene expression and physiological characteristics of Glycyrrhiza glabra, a experiment in a completely randomized design with three replications was conducted in University of Zabol. The data obtained from the physiological, and molecular measurements were analyzed using SAS v. 9/1. The results showed that the use of gibberellic acid increased the amount of chlorophyll a and b, carotenoid, anthocyanin, total flavonoid and SQS gene expression. So that with the increase in foliar spraying concentration, the amount of the above traits increased compared to the control level, and the highest amount of chlorophylls a and b, carotenoid, anthocyanin, total flavonoid and SQS gene expression was obtained during the application of gibberellic acid concentration of 70 ppm.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Gibberellic acid, SQS gene, Glycyrrhiza glabra, Physiological traits
Subjects: Q Science > QH Natural history > QH426 Genetics
Depositing User: Mrs najmeh khajeh
Date Deposited: 13 Oct 2024 18:18
Last Modified: 13 Oct 2024 18:18
URI: http://eprints.uoz.ac.ir/id/eprint/3677

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