能量代谢有助于Ipomoea aquatica中依赖种类的积
Yingying Huang1, Huiling Fu1, Qiong Liao2
1School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, 421002, China.
Plant physiology and biochemistry : PPB
|December 11, 2025
概括
在高 (Cd) 积累的水生 (T308) 中增强的能量代谢促进了Cd转移到芽. 这表明,准能源途径可能有助于培育CD安全的作物.
科学领域:
- 农业科学 农业科学
- 环境毒理学环境毒理学
- 植物生理学 植物生理学
背景情况:
- (Cd) 污染对农业生产力和食品安全构成重大威胁.
- 了解植物中Cd积累的机制对于制定缓解策略至关重要.
- 植物能量代谢在Cd积累中的作用需要进一步研究.
研究的目的:
- 为了研究Cd积累在Ipomoea aquatica的种类依赖的差异.
- 探索能量代谢和Cd转移在高Cd积累与Cd安全品种之间的关系.
- 为了确定参与Cd积累的关键代谢途径.
主要方法:
- 在Cd压力下对高Cd积累 (T308) 和Cd安全 (QLQ) 的Ipomoea aquatica品种进行比较分析.
- 酶活性测定三碳酸 (TCA) 循环和线粒体电子运输链 (mETC) 复合体.
- 综合蛋白质组和代谢组分析以检查碳代谢和代谢物概况.
- 量化腺三酸盐 (ATP) 的含量.
主要成果:
- 高Cd积累品种 (T308) 与Cd安全品种 (QLQ) 相比,表现出更大的Cd转移到发芽.
- 在Cd压力下,T308显示TCA循环酶和mETC复合物的活性显著增强.
- 蛋白质组和代谢组数据显示了碳代谢的协调调节,其中关键酶的活性较高,T308.8中酸盐和ATP的水平较高.
- 在T308中增强的能量代谢与增加的Cd转位相关.
结论:
- 增强的能量代谢,特别是TCA循环和mETC活性,与水生的Cd转位增加有关.
- 协调调节碳代谢和提高ATP的产生可能有助于有效的Cd吸收和运输.
- 这些发现为通过调节植物能量代谢来培育Cd安全的作物品种提供了潜在的目标.
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