克里斯普尔/卡斯9编辑番茄的物理化学特性和抗氧化活性SGR1敲击 (KO) 线
Jin Young Kim1, Dong Hyun Kim1, Me-Sun Kim2
1Division of Horticultural Biotechnology, Hankyong National University, Anseong 17579, Republic of Korea.
International journal of molecular sciences
|May 25, 2024
概括
淘汰番茄中的SLSGR1基因可以提高水果的质量. 这种基因改造增强了诸如胡卜素和类的抗氧化化合物,提高了营养价值和消费者的吸引力.
科学领域:
- 植物科学 植物科学
- 生物技术是生物技术.
- 食品科学 食品科学 食品科学
背景情况:
- 番茄富含抗氧化剂,如β-胡卜素,甘,,黄,黄和维生素C.
- SlSGR1基因调节番茄植物中的叶绿素降解.
- 保持绿色 (SGR) 蛋白质对于植物中的叶绿素分解至关重要.
研究的目的:
- 调查Sgr1无基因突变对番茄果实质量的影响.
- 为了评估物理化学性质的变化,二次代谢产物,和GABA含量在sgr1零番茄.
- 评估CRISPR/Cas9基因编辑在增强番茄果实功能化合物的潜力.
主要方法:
- 使用CRISPR/Cas9基因编辑来创建sgr1无番茄系.
- 分析的物理化学特征包括总溶性固体 (TSS),定位酸度 (TA) 和酸比率 (BAR).
- 量化的二次代谢产物,如甲酸,总卡洛类,总类,总黄类,总黄类和氨酸 (GABA).
- 使用DPPH (2,2-diphenyl-1-picrylhydrazyl) 基质清除试验评估了抗氧化活性.
主要成果:
- 与野生类型 (WT) 相比,sgr1无番茄系表现出更高的TSS,TA和BAR.
- 增强风味的 Askorbic 酸和总胡卜素的积累在 sgr1 null 线上显著更高.
- 在sgr1 null番茄中观察到总,总黄,GABA和DPPH激素清除活性的升高水平.
- 物理化学分析显示,关键质量和营养参数显著改善.
结论:
- 通过CRISPR/Cas9对SLSGR1基因的淘汰显著改善了番茄果的营养和功能性质.
- 增强的抗氧化剂和GABA水平表明对消费者的潜在健康益处.
- 这种遗传策略为开发具有优质性和增加抗氧化能力的番茄提供了一个有前途的方法.
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