Secondary metabolites play important roles in tree defense. Proanthocyanidins (PAs), one of
the most common secondary metabolites, are widely distributed in trees and woody plants …

Proanthocyanidins (PAs) are common specialized metabolites and particularly abundant in
trees and woody plants. In poplar (Populus spp.), PA biosynthesis is stress-induced and …

Key message A novel R2R3 MYB transcription factor PtrMYB57 interacted with bHLH131
and PtrTTG1 to form the MBW complex and negatively regulated the biosynthesis of both …

CAPRICE (CPC) gene negatively regulates anthocyanin biosynthesis. It encodes a small
single-repeat R3 MYB transcription factor, one of the seven of the kind, discovered in …

Key message Combining phenotype and gene expression analysis of the CRISPR/Cas9-
induced SlAN2 mutants, we revealed that SlAN2 specifically regulated anthocyanin …

Solanum nigrum, known as black nightshade, is a medicinal plant that contains many
beneficial metabolites in its fruit. The molecular mechanisms underlying the synthesis of …

Proanthocyanidins (PA s) are major defense phenolic compounds in the leaves of poplar
(Populus spp.) in response to abiotic and biotic stresses. Transcriptional regulation of PA …

Proanthocyanidins (PAs) and their monomeric building blocks, the (epi)‐flavan‐3‐ols, are
plant antioxidants that confer multiple human health benefits. The presence of PAs in forage …

Anthocyanins and proanthocyanidins are two important plant secondary metabolites, and
they contribute to plant survival and human health. In particular, proanthocyanidins could …

Proanthocyanidins (PAs) contribute to poplar defense mechanisms against biotic and abiotic
stresses. Transcripts of PA biosynthetic genes accumulated rapidly in response to infection …