title: Effects of abscisic acid, gibberellin, ethylene and their interactions on production of phenolic acids in salvia miltiorrhiza bunge hairy roots.
abstract: Salvia miltiorrhiza is one of the most important traditional Chinese medicinal plants because of its excellent performance in treating coronary heart disease. Phenolic acids mainly including caffeic acid, rosmarinic acid and salvianolic acid B are a group of active ingredients in S. miltiorrhiza. Abscisic acid (ABA), gibberellin (GA) and ethylene are three important phytohormones. In this study, effects of the three phytohormones and their interactions on phenolic production in S. miltiorrhiza hairy roots were investigated. The results showed that ABA, GA and ethylene were all effective to induce production of phenolic acids and increase activities of PAL and TAT in S. miltiorrhiza hairy roots. Effects of phytohormones were reversed by their biosynthetic inhibitors. Antagonistic actions between the three phytohormones played important roles in the biosynthesis of phenolic acids. GA signaling is necessary for ABA and ethylene-induced phenolic production. Yet, ABA and ethylene signaling is probably not necessary for GA3-induced phenolic production. The complex interactions of phytohormones help us reveal regulation mechanism of secondary metabolism and scale-up production of active ingredients in plants.
authors.affiliation: College of Life Science of Zhejiang Sci-Tech University, Hangzhou, China.
authors.forename: Zongsuo
authors.initials: Z
authors.lastname: Liang
authors.forename: Yini
authors.initials: Y
authors.lastname: Ma
authors.forename: Tao
authors.initials: T
authors.lastname: Xu
authors.forename: Beimi
authors.initials: B
authors.lastname: Cui
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Zhixin
authors.initials: Z
authors.lastname: Guo
authors.forename: Dongfeng
authors.initials: D
authors.lastname: Yang
mesh_terms: D000040:Abscisic Acid / Q000494:pharmacology*; D005030:Ethylenes / Q000494:pharmacology*; D005875:Gibberellins / Q000494:pharmacology*; D062385:Hydroxybenzoates / Q000378:metabolism*; D018517:Plant Roots / Q000187:drug effects* / Q000378:metabolism*; D027561:Salvia miltiorrhiza / Q000187:drug effects* / Q000378:metabolism*
chemical_list: D005030:Ethylenes; D005875:Gibberellins; D062385:Hydroxybenzoates; D000040:Abscisic Acid; C036216:ethylene; C017616:phenolic acid
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