相关实验视频

Updated: Jun 10, 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

胆补充剂减少了的吸收,并减轻了Solanum lycopersicum幼苗中的毒性

Ayşegül Akpinar¹, Asuman Cansev²

¹Department of Park and Horticulture, Vocational School of Technical Sciences, Bursa Uludag University, Bursa, 16059, Turkey. aysegulakpinar@uludag.edu.tr.

BMC plant biology

|October 17, 2024

概括

叶子胆补充剂通过减少重金属吸收和改善生长参数,有效地减轻番茄植物中的毒性. 在暴露于之前使用胆提供了对积累和氧化应激的最重要的保护.

科学领域:

环境科学环境科学
植物科学植物科学
农业科学农业科学

背景情况:

重金属污染,特别是 (Cd),对可持续农业和食品安全构成重大威胁.
正在探索外源生物调节剂,以减少重金属积累和植物中毒性,对胆的作用的信息有限.
已知内源四元氨基的胆可以增强植物的应激耐受性,但其针对毒性的特定机制需要阐明.

研究的目的:

调查叶子胆补充剂在减轻Solanum lycopersicum (番茄) 苗木中诱导的毒性方面的有效性.
为了确定胆应用的最佳时间 (在暴露于之前或之后) 以获得最大的保护作用.
分析胆对吸收,植物生长,氧化应激和抗氧化剂防御系统的影响.

主要方法:

索兰木 (Solanum lycopersicum) 的幼苗接受了五个治疗组:对照组,压力组,后的胆组,单独的胆组和前的胆组.
分析了含量,叶绿素含量,新鲜和干燥重量,过氧化 (H2O2),甲基 (MDA),超氧化解酶 (SOD),谷 (GSH),酸 (AsA) 和总含量 (TPC).
进行了统计分析,以比较不同治疗组合对测量参数的影响.

主要成果:

在应激之前的胆应用显著降低了根 (87.5%) 和叶子 (50%) 的含量,而在应激后的应用则减少了根含量38%.
压力前和压力后的胆治疗都提高了新鲜和干燥的体重,增加了酸含量,并减轻了像MDA这样的氧化压力标志物.
在压力前的胆应用显著增加了总含量,并防止了MDA的积累,这表明对脂质过氧化有强大的保护.

结论:

叶子胆补充剂是一种有前途的策略,可以抵消番茄植物中的毒性,主要是通过减少吸收和减轻氧化损伤.
在暴露于之前应用胆可以提供更好的保护,显著减少的积累,并保护植物生长和生理功能.
这些发现表明,胆可以增强农作物的弹性和生产力,在污染了重金属如的环境中.

关键词:

这种植物是Solanum lycopersicum.吸收的时间胆化物胆化物重金属污染污染重金属污染

更多相关视频

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

An Efficient Clearing Protocol for the Study of Seed Development in Tomato Solanum lycopersicum L.

An Efficient Clearing Protocol for the Study of Seed Development in Tomato Solanum lycopersicum L.

Published on: September 7, 2022

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.

Key Elements for Plant Nutrition

Key Elements for Plant Nutrition

Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...