在番茄果实中外源地应用ALA增强的糖,酸和香味品质
Ruirui Li1, Junwen Wang1, Hong Yuan1
1College of Horticulture, Gansu Agricultural University, Lanzhou, China.
Frontiers in plant science
|January 8, 2024
概括
外源的5氨基氨酸 (ALA) 应用通过改变糖和酸代谢来增强番茄果糖含量和风味. ALA促进了糖的积累,增加了挥发性化合物,改善了水果的整体质量.
科学领域:
- 植物生理学 植物生理学
- 果实科学 果实科学
- 生物化学 生物化学
背景情况:
- 番茄的风味质量取决于糖和酸含量.
- 众所周知,5-氨基氨酸 (ALA) 促进水果成熟,增强香味.
研究的目的:
- 为了研究ALA在番茄果实发育过程中对糖和酸代谢的影响.
- 分析ALA对番茄糖,酸和风味质量的调节.
主要方法:
- 番茄植物用0,100或200毫克L-1的ALA溶液进行喷.
- 分析了酶活动 (AI,NI,SS,SPS,PEPC,ME,CS) 和基因表达 (SlAI,SlNI,SlSS,SlPPC2,SlME1,SlCS) 的情况.
- 在不同水果发育阶段量化了糖含量,酸含量和挥发性成分.
主要成果:
- ALA 增强了 AI,NI 和 SS 的活动,同时降低了 SPS 活动,增加了总糖和促进了糖累积.
- 氨酸增加了PEPC,ME和CS的活性,降低了酸和成熟时的总有机酸含量.
- 应用ALA增加了成熟番茄果实中挥发性成分的数量和质量分数.
结论:
- 外源 ALA 应用在发育过程中对番茄果糖和酸质量产生积极影响.
- ALA促进糖的形成和积累,并增强水果香味质量的发展.
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