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可以加速水果成熟的变化和在Satsuma普通话肉质中的胡卜素积累
Xiaoman Liu1, Yan Liu1, Yuan Zhou2
1Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.
Plant physiology and biochemistry : PPB
|October 18, 2023
概括
(Mg) 肥料的应用显著提高了萨祖马果的质量. Mg增加了纸中的Mg含量,可溶性固体和胡卜素水平,改善了营养价值.
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:
- 类水果的质量受营养的可用性影响.
- (Mg) 在植物新陈代谢和水果发育中起着至关重要的作用.
- 了解Mg对胡卜素生物合成的影响对于提高果的营养价值至关重要.
研究的目的:
- 为了研究 (Mg) 应用对三普通 (C. unshiu Marc. Satsuma) 的水果质量和胡卜素代谢的影响. ) 的情况.
- 确定Mg肥料如何影响关键水果质量参数和胡卜素的积累.
- 探索基因机制,特别是基因表达,与Mg治疗下的胡卜素生物合成有关.
主要方法:
- 实地实验使用了20岁的萨祖马 mandarins树.
- 两种处理:控制 (CK,没有Mg) 和Mg肥料 (200克MgO植物-1).
- 在水果发育的各个阶段分析了含量,总溶性固体 (TSS),可定位酸度 (TA),胡卜素含量 (蛋白,β-素,素,紫素) 和基因表达 (CitPSY,CitPDS,CitLCYb1,CitLCYb2,CitLCYe,CitHYb,CitZEP).
主要成果:
- 在果实扩张 (90-150 DAF) 期间,治疗显著增加了纸中的含量 (15.69%-21.74%).
- 在成熟期间 (195-210 DAF),Mg的应用增强了水果TSS (高达15.84%) 和降低了TA (高达34.25%).
- 由于上调的胡卜素生物合成基因表达,Mg显著提升了黄蛋白,β-密素,紫素和紫素水平 (120-195 DAF).
结论:
- 的应用通过增加Mg和TSS含量和改变酸度,有效地提高了Satsuma果的质量.
- 显著增强果果肉中的胡卜素积累,有助于改善营养价值.
- 关键的胡卜素生物合成基因 (例如,CitPSY,CitPDS) 的上调是Mg影响胡卜素组成的主要机制.
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