Figure 8.

Key enzymes and proteins in regulating biosynthesis of phenolic acids in FLJ. Phenolic acids are produced from PEP by PAL, 4CL, and CHS. PK, 4CL, and HMGR are regulated by ATP. HMGR is related to phenolic acid and hyperoside. The biosynthesis of phenolic acids is coordinated closely with fatty acids. Converting glucose to PEP is regulated by bHLH. Abbreviations: CHS, chalcone synthase; 4CL, 4-coumarate-CoA ligase; PAL, phenylalanine ammonia-lyase; PK, pyruvate kinase; HMGR, 3-hydroxy-3-methylglutaryl-CoA reductase; FatB, fatty acyl-ACP thioesterase B; PEP, phosphoenolpyruvate; and Pyr, pyruvate.