Feduraev Pavel, Skrypnik Liubov, Riabova Anastasiia, Pungin Artem, Tokupova Elina, Maslennikov Pavel, Chupakhina Galina
Institute of Living Systems, Immanuel Kant Baltic Federal University, 236000 Kaliningrad, Russia.
Plants (Basel). 2020 Apr 9;9(4):476. doi: 10.3390/plants9040476.
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 ( L.).
作为对环境暴露的响应，大多数高等植物会激活次生代谢途径，例如苯丙烷类代谢。该途径会导致形成木质素，它是植物细胞中最重要的聚合物之一，同时还会产生多种酚类次生代谢产物。芳香族氨基酸，如苯丙氨酸和酪氨酸，在很大程度上刺激了这一过程，决定了植物组织中两种木质化方式，其效率各不相同。本研究以普通小麦（L.）为例，通过苯丙氨酸解氨酶（PAL）途径参与植物代谢的苯丙氨酸和酪氨酸，对酚类化合物以及木质素的合成和积累的影响，基于负责其生物合成的一些基因的表达进行了分析。
