在不同的植物部位上应用的外源性ALA促进了番茄果的质量和GABA合成
Peng Bai1, Junwen Wang1, Yongmei He1
1College of Horticulture, Gansu Agricultural University, Lanzhou, China.
Frontiers in nutrition
|January 20, 2025
概括
在西红上应用5-氨基氨基酸 (ALA) 显著提高了水果质量和胺酸 (GABA) 水平. 这项研究表明,ALA增强了温室番茄的营养价值和GABA含量.
科学领域:
- 园艺科学 园艺科学
- 植物生理学 植物生理学
- 营养生物化学 营养生物化学
背景情况:
- 番茄果实是胺黄酸 (GABA) 的天然来源,这种化合物以其健康益处而闻名,包括调节血压和改善睡眠.
- 提高番茄的GABA含量是提高其营养价值和可销售性的关键目标.
研究的目的:
- 调查外源性5-氨基氨基酸 (ALA) 应用对温室种植番茄的水果质量和GABA合成的影响.
- 确定最佳的ALA度和应用地点 (根,叶,果表面) 以最大限度地发挥这些效果.
主要方法:
- 温室番茄 (Solanum lycopersicum cv. 温室番茄 (Solanum lycopersicum cv. 温室番茄) 是一种蔬菜,可以在温室中种植. "184") 经过根浸泡,叶子喷和果实表面喷,在果实设置期间处理了不同度的ALA.
- 确定了每个应用方法的最佳ALA度 (10毫克·L-1用于根,100毫克·L-1用于叶子,100毫克·L-1用于果子表面).
- 分析了这些优化的ALA应用对水果重量,可溶糖,可溶固体,可溶蛋白质,甲酸,有机酸,自由氨基酸和GABA含量的影响.
主要成果:
- 外源 ALA 应用显著增加了水果重量 (42.37%-76.24%),可溶糖 (78.51%-94.52%),可溶固体 (9.09%-41.71%),可溶蛋白 (82.71%-241.05%),和酸 (1.31%-5.06%).
- ALA治疗降低了有机酸含量 (12.81% - 33.61%) 和增强了自由氨基酸 (11.22% - 16.50%),包括乌玛米氨基酸 (7.26% - 20.13%).
- 最值得注意的是,成熟的西红果中的GABA含量在不同ALA应用地点大幅增加了214.58%-433.32%.
结论:
- 对番茄植物不同部位的外源性ALA应用有效调节氨基酸代谢并增强GABA生物合成.
- ALA的应用增加了谷氨酸脱酶 (GAD) 和谷氨酸水平的活性,谷氨酸是GABA合成途径的关键成分.
- 优化ALA的应用是改善温室番茄营养质量的可行策略,特别是通过增加GABA含量.
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