Key genes in a "Galloylation-Degalloylation cycle" controlling the synthesis of hydrolyzable tannins in strawberry plants.

ABSTRACT: Strawberry fruits, known for their excellent taste and potential health benefits, are particularly valued for their rich content of hydrolyzable tannins (HTs). These compounds play key roles in regulating growth and development. However, the molecular mechanisms underlying HT synthesis in plants remains poorly elucidated. In this study, based on a correlation analysis between the transcriptome and metabolome of HTs, galloyl glucosyltransferase (UGT84A22), serine carboxypeptidase-like acyltransferases (SCPL-ATs), and carboxylesterases (CXEs) were screened. Furthermore, in vitro enzymatic assays confirmed that FaSCPL3-1 acted as a hydrolyzable tannins synthase (HTS), catalyzing the continuous galloylation of glucose to form simple gallotannins (GTs). Additionally, FaCXE1/FaCXE3/FaCXE7

SUBMITTER: Zhang L 

PROVIDER: S-EPMC11879120 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature