对蓝中不同强度光线的安托西亚宁合成的生理反应
Xiaoli An1, Tianyu Tan2, Zejun Song1
1College of Forestry, Guizhou University, Huaxi, Guiyang, Guizhou, China.
PloS one
|June 23, 2023
概括
高光强度通过影响斯酸和关键酶活动,显著增加蓝中的安东素产量. 这项研究澄清了水果颜色发育背后的生理机制,以应对光线.
科学领域:
- 植物生理学 植物生理学
- 生物化学 生物化学
- 园艺园艺 园艺园艺
背景情况:
- 蓝中的水果颜色对于经济价值至关重要,主要取决于酸盐含量.
- 众所周知,蓝水果中的安托西亚宁合成受到光线可用性的显著影响.
研究的目的:
- 在不同强度的光线下,研究蓝水果中安东素合成的生理机制.
- 探索内源性激素水平,酶活动和素积累之间的关系.
主要方法:
- 蓝 ("奥尼尔"南部高灌木) 果实被暴露在四种光强度 (100%,75%,50%,25%) 中.
- 测量包括安东含量,内源性激素水平 (JA,ABA,ETH,GA3,IAA) 和关键酶 (PAL,CHI,DFR,UFGT) 在水果发育阶段的活动.
主要成果:
- 充足的光线 (100%强度) 显著促进了氨酸合成,导致含量比较低的光线水平高1.7624.13倍.
- 光强度显著改变了内源性激素含量和氨酸合成途径中的酶活性 (P < 0.05).
- 在100%的光强度下,雅斯蒙酸 (JA) 含量和氨氨酸酶 (PAL) 活性显著更高.
结论:
- 100%的光强度通过调节内源性荷尔蒙水平和相关的酶活动来增强蓝果的安托西亚宁合成.
- 观察到安东含量与JA,ABA,ETH,GA3,IAA,PAL,CHI,DFR和UFGT的水平/活性之间存在显著的相关性.
- 这些发现为了解蓝中光调节的安托氨酸合成的分子机制提供了基础.
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