调节西红果在不同植物发育阶段的生长和发育,通过远红光:一个综合的解剖学,生理学和转录组分析
Maria Mastoraki1, Sofia Bengoa Luoni2, Julia Lindeboom1
1Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands.
The Plant journal : for cell and molecular biology
|December 3, 2025
概括
远红色的光会增加番茄果的重量,并通过影响细胞生长和激素通路来加速成熟. 这种光信号被叶子感知,影响水果的发育和质量.
科学领域:
- 植物生物学 植物生物学
- 摄影形态生成 (Photomorphogenesis) 是一种光变的过程.
- 生殖能力发展 生殖能力发展
背景情况:
- 远红色 (FR) 光是一种关键的环境信号,通过植物色光受体影响植物发育.
- 在水果生长和成熟中FR光的特殊作用需要进一步阐明.
研究的目的:
- 研究FR光对西红 (Solanum lycopersicum) 果实发育,解剖和新陈代谢的影响.
- 为了确定不同发育阶段的FR光线定时对水果特性的影响.
主要方法:
- 在矮番茄植物中,在植物,早期果实发育和晚期果实发育阶段应用FR光.
- 分析水果的重量,植物结构,水果解剖学 (半骨细胞层和大小).
- 源 (叶子) 和水槽 (果实) 组织的综合转录和代谢分析.
主要成果:
- 从开花到成熟的绿色阶段,FR光照会通过增加水果大小 (更多的中骨细胞层和更大的细胞) 来增加水果总重量.
- 在叶子和水果中,FR光调节了参与auxin,gibberellins和brassinosteroid生物合成和信号传递的基因.
- FR光加速成熟开始,与高调节的酸和乙烯生物合成途径相关.
- 叶子中的FR光感知先于通过激素信号调节水果发育和成熟.
结论:
- 在优化番茄果的新鲜重量和糖含量方面,FR光照时间至关重要.
- FR光通过源自叶子的激素介导信号影响生殖发育.
- 这项研究揭示了植物光调节生殖发育的可塑性.
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