ArticleMolecular biology reports2025
Pulses of low-intensity red light inhibit the expression of chlorophyll degradation genes during postharvest senescence of kale leaves.
Article in Molecular biology reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundKale is a leafy vegetable rich in phytochemicals that promote health. After harvest, leaf senescence is induced, and kale turns yellow due to the degradation of chlorophyll. Previous studies have shown that low-intensity red light pulses delay postharvest senescence in kale. This effect may be mediated by phytochromes activated by red light. The effect of low-intensity red-light LED treatment on the expression of genes involved in chlorophyll degradation (NYC1, NOL, SGR, PPH, and PAO) and genes encoding senescence-associated transcription factors related to the phytochrome signaling cascade (PIF4, ORE1, and WRKY6) was examined in this work. METHODS AND
resultsKale leaves were treated daily with red-light-LED (22 ± 3 µmol m
conclusionRed light treatment preserved chlorophyll by the strong inhibition of NYC1, SGR, and PAO expression in irradiated leaves. The expression of ORE1 increased in darkness and was inhibited by red treatment, as was expected in the red light-activated phytochrome signaling cascade.
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