相关实验视频

Updated: Jul 5, 2025

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform

Published on: June 7, 2024

来自遭受干旱压力的三个意大利橄种植园的橄叶提取物不同地保护细胞免受氧化压力

Luca Cerri^1,2, Sara Parri², Maria Celeste Dias³

¹Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy.

Antioxidants (Basel, Switzerland)

|January 22, 2024

概括

干旱压力增强了橄叶提取物 (OLE) 的抗氧化能力,特别是来自Maurino和Giarraffa品种的提取物. 这些压力较大的OLE保护人静脉内皮细胞 (HUVECs) 免受氧化损伤,Giarraffa显示出优越的肠道透.

科学领域:

农业科学农业科学
生物化学生物化学
细胞生物学细胞生物学

背景情况:

橄叶提取物 (OLE) 富含多,以其抗氧化特性而闻名.
植物中的多含量通常在环境压力下增加,例如干旱.
橄油的特定成分和健康益处可能取决于橄品种和环境条件.

研究的目的:

调查干旱压力对来自意大利三种橄品种的OLEs抗氧化性质和性状的影响.
评估这些OLE在人静脉内皮细胞 (HUVECs) 中对氧化应激的肠道透和保护作用.

主要方法:

橄叶提取物是从Giarraffa,Leccino和Maurino品种中制备的,无论它们是否受到干旱压力.
分析了抗氧化能力和的概况.
通过明显的透性来评估肠道透率.
在HUVEC中通过测量活性氧物种 (ROS) 生产来评估抗氧化应激的细胞保护作用.

主要成果:

来自Maurino和Giarraffa品种的干旱压力OLEs表现出最高的抗氧化能力.
缺水显著改变了的特征,特别是增加了毛里尼奥的欧蛋白和素-7-O-rutinoside.
所有干旱压力OLEs都通过减少ROS产量来保护HUVECs免受氧化压力,Giarraffa和Maurino显示出最明显的效应.
与Maurino相比,压力较大的Giarraffa的OLE显示出抗氧化分子的明显透性更高.

结论:

干旱压力是一种有效的策略,可以增强橄叶提取物中的抗氧化剂潜力和特定有益化合物.
来自受干旱影响的Giarraffa和Maurino品种的OLE为内皮细胞提供了对氧化应激的显著保护.
品种和干旱压力显著影响了OLEs的组成和生物活性,这表明在功能性食品和营养保健品中有针对性的应用潜力.

关键词:

在HUVECs中使用.这就是OLE OLE.抗氧化剂抗氧化剂是一种抗氧化剂.干旱造成的压力是干旱.这是一种oleuropein.聚醇是一种多醇.

更多相关视频

Pattern-Triggered Oxidative Burst and Seedling Growth Inhibition Assays in Arabidopsis thaliana

Pattern-Triggered Oxidative Burst and Seedling Growth Inhibition Assays in Arabidopsis thaliana

Published on: May 21, 2019

Catalytic Scavenging of Plant Reactive Oxygen Species In Vivo by Anionic Cerium Oxide Nanoparticles

Catalytic Scavenging of Plant Reactive Oxygen Species In Vivo by Anionic Cerium Oxide Nanoparticles

Published on: August 26, 2018

相关概念视频

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.

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

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.

Regulation of Transpiration by Stomata

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.