Response of Phenylpropanoid Pathway and the Role of Polyphenols in Plants under Abiotic Stress

Molecules

Bingsong Zheng¹  Renu Bhardwaj²  Babar Shahzad³  Marco Landi⁴  Abdul Rehman⁵  Anket Sharma⁶ 

[1] Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto, 80-56124 Pisa, Italy;Department of Crop Science and Biotechnology, Dankook University, Chungnam 31116, Korea;F University, Hangzhou 311300, China;Plant Stress Physiology Laboratory, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India;School of Land and Food, University of Tasmania, Hobart, TAS 7005, Australia;;State Key Laboratory of Subtropical Silviculture, Zhejiang A&

关键词: abiotic stress;    anthocyanin;    antioxidant;    flavonoid;    phenolic acid;    polyphenol;   

DOI  :  10.3390/molecules24132452

来源: DOAJ

【 摘 要 】

Phenolic compounds are an important class of plant secondary metabolites which play crucial physiological roles throughout the plant life cycle. Phenolics are produced under optimal and suboptimal conditions in plants and play key roles in developmental processes like cell division, hormonal regulation, photosynthetic activity, nutrient mineralization, and reproduction. Plants exhibit increased synthesis of polyphenols such as phenolic acids and flavonoids under abiotic stress conditions, which help the plant to cope with environmental constraints. Phenylpropanoid biosynthetic pathway is activated under abiotic stress conditions (drought, heavy metal, salinity, high/low temperature, and ultraviolet radiations) resulting in accumulation of various phenolic compounds which, among other roles, have the potential to scavenge harmful reactive oxygen species. Deepening the research focuses on the phenolic responses to abiotic stress is of great interest for the scientific community. In the present article, we discuss the biochemical and molecular mechanisms related to the activation of phenylpropanoid metabolism and we describe phenolic-mediated stress tolerance in plants. An attempt has been made to provide updated and brand-new information about the response of phenolics under a challenging environment.

【 授权许可】

Unknown