相关实验视频

Updated: Jun 27, 2025

Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements

Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements

Published on: July 13, 2016

综合生理学,转录基因和代谢学分析为Salix caprea根的介导的排毒提供了洞察力

Ao Li¹, Yuancheng Wang¹, Xia Li²

¹State Key Laboratory of Efficient Production of Forest Resources, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.

Plant physiology and biochemistry : PPB

|May 4, 2024

概括

足够的 (P) 增加了植物对 (Cd) 压力的耐受性,通过增强抗氧化防御和调节涉及金属运输的关键基因,帮助植物修复工作.

科学领域:

植物生物学植物生物学
环境科学环境科学
分子生物学分子生物学

背景情况:

(Cd) 的压力严重抑制了植物的生长.
(P) 已知可以改善植物适应Cd压力.
根基中P介导的Cd应激反应的分子机制尚不清楚.

研究的目的:

研究P对Salix caprea生长,生理学,转录组和代谢组在Cd压力下的影响.
阐明P介导的Cd排毒和耐受性的分子机制.

主要方法:

在不同的P和Cd条件下对Salix caprea进行了转录组和代谢组分析.
测量了包括氧化应激标志物和抗氧化酶活性在内的生理参数.
基因表达分析的重点是金属载体基因 (HMA,ZIP,NRAMP,CAX).

主要成果:

足够的P减轻了Cd诱导的生长抑制和减少了氧化应激.
足够的P增加了根部中的Cd积累,增强了抗氧化酶活动 (SOD,CAT),并提高了抗氧化剂水平 (AsA,黄).
转录组和代谢组分析确定了关键途径 (黄类生物合成,甲酸盐生物合成,激素信号传递) 和差异表达的基因/代谢物.

结论:

足够的P通过提高抗氧化能力和金属运输基因的调制来增强植物对Cd压力的抵抗力.
在足够的P下,HMA,ZIP,NRAMP和CAX基因的升级可能解释了Cd根积累的增加.
结果提供了关于P在植物Cd耐受性和植物修复潜力的作用的见解.

关键词:

抗氧化剂系统抗氧化剂系统防御机制防御机制防御机制这是一种重金属,重金属.多个omics的多个omics.营养元素是一种营养元素.

更多相关视频

Collection of Alfalfa Root Exudates to Study the Impact of Di2-ethylhexyl Phthalate on Metabolite Production

Collection of Alfalfa Root Exudates to Study the Impact of Di2-ethylhexyl Phthalate on Metabolite Production

Published on: June 2, 2023

Investigation of Xenobiotics Metabolism In Salix alba Leaves via Mass Spectrometry Imaging

Investigation of Xenobiotics Metabolism In Salix alba Leaves via Mass Spectrometry Imaging

Published on: June 15, 2020

相关概念视频

Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.