UV radiation promotes anthocyanins biosynthesis in the fruit peel of blood oranges (<i>Citrus sinensis</i>).

ABSTRACT:

Introduction

The commercial value of blood oranges (Citrus sinensis) is closely linked to the intensity of red pigmentation in the peel and flesh, driven by the accumulation of anthocyanins. While light is a crucial environmental factor for anthocyanin synthesis, the specific effects of different light spectra, particularly ultraviolet (UV) radiation, on peel pigmentation have not been fully elucidated.

Methods

In this study, the effects of light spectra on anthocyanin biosynthesis in blood orange peel were systematically studied through three treatments of visible light (VL), UV and complete shading (CK). These treatments were combined with transcriptome, anthocyanin targeted metabolome and weighted gene coexpression network analysis (WGCNA).

Results and discussio

SUBMITTER: Yang H 

PROVIDER: S-EPMC12507625 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature