通过调节的光合作用,氧化平衡和基因表达诱导Brassica rapa L.的双相反应
Cong Van Doan1, Giuseppe Mannino1, Noemi Gatti1
1Department of Life Sciences and Systems Biology, Plant Physiology Unit, University of Turin, Via Quarello15/a, Turin 10135, Italy.
Plant science : an international journal of experimental plant biology
|September 7, 2025
概括
(Ce) 暴露会以双相的方式影响Brassica rapa植物. 低C度刺激生长,而高度会损害光合作用和改变基因表达,突出显示潜在的生态风险.
科学领域:
- 环境科学 环境科学
- 植物生理学 植物生理学
- 生物化学 生物化学
背景情况:
- (Ce),一种稀土元素 (REE),是由于工业和农业应用而日益严重的环境污染物.
- 了解植物对 REE 污染的反应对于评估生态风险至关重要.
研究的目的:
- 研究不同度的在Brassica rapa (B. rapa) 上的生理,生化和分子效应.
- 阐明对植物生长,新陈代谢和应激反应的影响.
主要方法:
- 对Ce积累和基本元素含量进行化学分析.
- 对光合作用色素,叶绿素光和氧化应激标记物 (ROS,) 的生物化学测定.
- 基因表达分析以评估分子反应.
主要成果:
- 表现出双相 (阻塞) 效应:低度 (1μM) 刺激了生长,而高度 (1mM,10mM) 引起了光合作用功能障碍 (减少叶绿素,降低PSII效率).
- 暴露调节了氧化应激,增加了プロ林,并选择性地增强了凯姆菲罗尔衍生物的积累.
- 高Ce水平导致了叶子中的显著Ce积累,减少了基本元素 (Al,Se,Na),并在关键代谢和运输途径中改变了基因表达.
结论:
- 布拉西卡·拉帕表现出复杂的适应应激的策略,包括光合作用,氧化应激和二次新陈代谢的调节.
- 污染带来了生态风险,影响了植物生理和营养平衡.
- 结果提供了关于植物-REE相互作用和潜在的植物修复策略的见解.
关键词:
黄铜 (Brassica rapa) 是一种葡萄.(Cerium) 是一种有机物.黄类化合物 黄类化合物基因表达 基因表达矿物营养 矿物营养氧化压力是一种氧化压力.光合作用 光合作用稀土元素 稀土元素更多相关视频
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