Research Progress in Light Signaling Regulation of Fruit Development in Horticultural Crops

doi:10.13560/j.cnki.biotech.bull.1985.2025-1286

Abstract

Abstract:

Light is a core environmental signal regulating fruit development in horticultural crops. Research of light regulating fruit development has revealed molecular pathways of photoreceptors (phytochromes, cryptochromes, and UVR8) mediated by the network of core transcription factors (HY5, PIFs, COP1, BBX, etc.), and mechanism of light quality, light intensity, and photoperiod specifically regulating traits such as color, sugar-acid balance, aroma, and weight. This review summarizes the regulatory roles of light signaling at key stages of fruit development, with a particular focus on its regulation of early fruit developmental processes and its control of fruit quality formation during ripening. It further highlights how light signaling regulates ethylene, abscisic acid, and jasmonic acid pathways and forms synergistic and antagonistic networks with hormones such as auxin and gibberellin, thereby coordinating the molecular and physiological mechanisms underlying fruit ripening and quality formation. It also notes that regulating effects of different light-quality, light intensity and photoperiod on fruit development are species-specific and dose-dependent. Although key molecular mechanisms of light signal regulating partially have been uncovered, it is still lack for system analysis on stage-specific molecular switches, quantitative models of multi-factor light interactions, unique mechanisms in non-model horticultural crops, and synergistical regulation of light with temperature, moisture, nutrients and other environmental factors. In future, integrating gene editing with intelligent light-control technologies, the molecular mechanism of light integrates multiple environmental signals can be dissected, which provides theoretical support for the precise regulation of fruit quality and crop genetic improvement in protected horticulture, and promote the standardization and large-scale application of light regulation technology in the production of high-quality fruits.

Key words: light signaling, photoreceptors, fruit development, fruit quality, transcription factors, hormonal crosstalk, genome editing, smart light regulation

MA Shi-jie, LI Zheng, LI Wei, GUO Yang-dong, ZHANG Na. Research Progress in Light Signaling Regulation of Fruit Development in Horticultural Crops[J]. Biotechnology Bulletin, 2026, 42(3): 5-18.

Figures/Tables 3

References 124

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光质 Light quality	园艺作物 Horticultural crops	效果 Effect	参考文献Reference
红光 Red light	草莓 Fragaria × ananassa Duch， ‘Benihoppe’	果实亮度显著提升；维生素C含量显著增加；货架期延长	［95］
	辣椒 Capsicum annuum L.	维生素C含量显著增加；货架期延长	［96］
	金桔 F. crassifolia Swingle	加速果实褪绿，果实色泽均匀性得到改善	［79］
	西瓜 Citrullus lanatus Thunb	瓜瓤着色提前5-10 d，采收时间显著提前	［97］
	甜瓜 Cucumis melo L.	酯类挥发性风味化合物含量显著提高；果实成熟时间显著缩短；可溶性固形物含量显著提升	［98］
	柑橘 Citrus sinensis L. Osbeck	类胡萝卜素含量显著提高	［99］
	番茄 Solanum lycopersicum L.	果实成熟时间显著缩短；可溶性固形物含量显著提高	［81］
	香蕉 Musa nana Lour	加速果实软化；提前达到糖度峰值；果实成熟时间显著提前	［100］
	芒果 Mangifera indica L.	果实转色更快；可溶性糖积累高峰提前；后熟软化进程加快	［83］
	香梨 Pyrus sinkiangensis Yu	果实转色加快；后熟软化进程加快	［83］
	冬枣 Ziziphus jujuba Mill.	果实转色加快；后熟软化进程加快	［83］
	青皮桔 Citrus reticulata Blanco	果实转色加快；后熟软化进程加快	［83］
	羊角蜜甜瓜 Cucumis melo L.	货架期出现“褪白转绿”现象	［83］
远红光 Far-red light	番茄 Solanum lycopersicum L.	可溶性固形物含量积累显著提高；维生素含量显著提高；果实大小略有增加；部分品种果实产量略有增加	［84］
远红光 Far-red light	辣椒 Capsicum annuum L.	果实产量显著减少；果实变小	［86］
蓝光 Blue light	油桃 Prunus persica var. nectarine	类胡萝卜素含量显著提高	［89］
	柑橘 Citrus sinensis L. Osbeck	果实对绿霉病抗性提高，果实色泽更加均匀	［101］
	梨 Pyrus ussuriensis	延缓果实成熟	［87］
	杨梅 Myrica rubra Sieb. and Zucc. cv. Biqi	花青素含量显著提高	［88］
	辣椒 Capsicum annuum L.	辣椒素含量显著提高	［102］
紫外光 UV-B	苹果 Malus × domestica	单果重显著提高；果实成熟进程加快	［103］
	桃 Prunus persica L. Batsch	萜类物质含量显著增加	［104］
	蓝莓 Vaccinium spp.	花青素含量显著增加	［91］
	葡萄 Vitis vinifera L.	多酚类物质显著增加	［105］
	山竹 Garcinia mangostana L.	货架期延长	［92］

光质 Light quality	园艺作物 Horticultural crops	效果 Effect	参考文献Reference
红光 Red light	草莓 Fragaria × ananassa Duch， ‘Benihoppe’	果实亮度显著提升；维生素C含量显著增加；货架期延长	［95］
	辣椒 Capsicum annuum L.	维生素C含量显著增加；货架期延长	［96］
	金桔 F. crassifolia Swingle	加速果实褪绿，果实色泽均匀性得到改善	［79］
	西瓜 Citrullus lanatus Thunb	瓜瓤着色提前5-10 d，采收时间显著提前	［97］
	甜瓜 Cucumis melo L.	酯类挥发性风味化合物含量显著提高；果实成熟时间显著缩短；可溶性固形物含量显著提升	［98］
	柑橘 Citrus sinensis L. Osbeck	类胡萝卜素含量显著提高	［99］
	番茄 Solanum lycopersicum L.	果实成熟时间显著缩短；可溶性固形物含量显著提高	［81］
	香蕉 Musa nana Lour	加速果实软化；提前达到糖度峰值；果实成熟时间显著提前	［100］
	芒果 Mangifera indica L.	果实转色更快；可溶性糖积累高峰提前；后熟软化进程加快	［83］
	香梨 Pyrus sinkiangensis Yu	果实转色加快；后熟软化进程加快	［83］
	冬枣 Ziziphus jujuba Mill.	果实转色加快；后熟软化进程加快	［83］
	青皮桔 Citrus reticulata Blanco	果实转色加快；后熟软化进程加快	［83］
	羊角蜜甜瓜 Cucumis melo L.	货架期出现“褪白转绿”现象	［83］
远红光 Far-red light	番茄 Solanum lycopersicum L.	可溶性固形物含量积累显著提高；维生素含量显著提高；果实大小略有增加；部分品种果实产量略有增加	［84］
远红光 Far-red light	辣椒 Capsicum annuum L.	果实产量显著减少；果实变小	［86］
蓝光 Blue light	油桃 Prunus persica var. nectarine	类胡萝卜素含量显著提高	［89］
	柑橘 Citrus sinensis L. Osbeck	果实对绿霉病抗性提高，果实色泽更加均匀	［101］
	梨 Pyrus ussuriensis	延缓果实成熟	［87］
	杨梅 Myrica rubra Sieb. and Zucc. cv. Biqi	花青素含量显著提高	［88］
	辣椒 Capsicum annuum L.	辣椒素含量显著提高	［102］
紫外光 UV-B	苹果 Malus × domestica	单果重显著提高；果实成熟进程加快	［103］
	桃 Prunus persica L. Batsch	萜类物质含量显著增加	［104］
	蓝莓 Vaccinium spp.	花青素含量显著增加	［91］
	葡萄 Vitis vinifera L.	多酚类物质显著增加	［105］
	山竹 Garcinia mangostana L.	货架期延长	［92］