Fig. 1
From: Multifaceted roles of flavonoids mediating plant-microbe interactions
Flavonoid biosynthesis, function, and transport in plants. A Molecular structure of flavonoids, major subclasses of flavonoids, and the general flavonoid biosynthetic pathway in plants. B Biological functions of flavonoids in plants. C Intracellular and intercellular transport of flavonoids. CHS, chalcone synthase; CHI, chalcone isomerase; IFS, isoflavone synthase; FNS, flavone synthase; F3H, flavanone 3-hydroxylase; FLS, flavonol synthase; DFR, dihydroflavonol 4-reductase; LAR, leucoanthocyanidin reductase; ANS, anthocyanidin synthase; ABC, ATP-binding cassette; ADP, adenosine di-phosphate; ATP, adenosine tri-phosphate; Pi, phosphate; GSH, glutathione; GST, glutathione-S-transferase; MATE, multidrug and toxin efflux; TT12, transparent testa 12