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Article Abstract
The fragile texture of fresh goji berries makes them prone to rapid quality deterioration during storage. This study investigated the effects of white LED irradiation (100 μmol m s) on the postharvest quality of fresh goji berries. Compared to control samples, LED irradiation significantly improved fruit firmness and total phenolic content, preserved color quality and total carotenoid levels, and upregulated carotenoid biosynthesis genes such as LbPSY, LbZ-ISO, LbCRTISO, and LbLCA1. Transcriptomic analysis revealed that LED irradiation enhanced the expression of carotenoid biosynthesis-related genes during early and mid-storage, activated the terpenoid backbone biosynthesis pathway (including the MEP and MVA pathways), and downregulated WRKY transcription factors potentially involved in carotenoid repression. These findings showed that LED irradiation could maintain higher quality attributes and nutritional qualities, especially in terms of color quality and carotenoid levels, thereby improving the fresh goji berries' storability. This study provides a useful way to store fresh goji berries in the future after harvest.
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| http://dx.doi.org/10.1016/j.plaphy.2025.110254 | DOI Listing |
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