Phenylalanine and Tyrosine as Exogenous Precursors of Wheat (Triticum aestivum L.) Secondary Metabolism through PAL-Associated Pathways

Plants

Pavel Maslennikov¹  Galina Chupakhina¹  Anastasiia Riabova¹  Elina Tokupova¹  Pavel Feduraev¹  Artem Pungin¹  Liubov Skrypnik¹ 

[1] Institute of Living Systems, Immanuel Kant Baltic Federal University, 236000 Kaliningrad, Russia;

关键词: Triticum aestivum L.;    phenolic compounds;    lignin;    phenylalanine;    tyrosine;    PAL;   

DOI  :  10.3390/plants9040476

来源: DOAJ

【 摘 要 】

Reacting to environmental exposure, most higher plants activate secondary metabolic pathways, such as the metabolism of phenylpropanoids. This pathway results in the formation of lignin, one of the most important polymers of the plant cell, as well as a wide range of phenolic secondary metabolites. Aromatic amino acids, such as phenylalanine and tyrosine, largely stimulate this process, determining two ways of lignification in plant tissues, varying in their efficiency. The current study analyzed the effect of phenylalanine and tyrosine, involved in plant metabolism through the phenylalanine ammonia-lyase (PAL) pathway, on the synthesis and accumulation of phenolic compounds, as well as lignin by means of the expression of a number of genes responsible for its biosynthesis, based on the example of common wheat (Triticum aestivum L.).

【 授权许可】

Unknown