相关实验视频

Updated: Jun 29, 2025

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Published on: May 8, 2020

素积累和抗氧化剂反应对于类植物对UV-B光引起的压力耐受性至关重要

V Vives-Peris¹, A Gómez-Cadenas¹, R M Pérez-Clemente¹

¹Department of Biology, Biochemistry and Natural Sciences, Jaume I University, Castelló de la Plana, Spain.

Plant biology (Stuttgart, Germany)

|April 3, 2024

概括

类巨型 (CM) 比特洛耶 (TC) 对UV-B光应激的耐受性更高. CM利用增强的抗氧化能力和特定的基因表达来适应,与更敏感的TC不同.

科学领域:

植物科学植物科学
环境压力生物学
遗传学是一个遗传学.

背景情况:

气候变化加剧了非生物压力,包括UV-B辐射增加.
紫外线可以对植物造成重大损害,影响光合作用和新陈代谢.

研究的目的:

为了研究类巨 (CM) 和特洛耶 (TC) 对UV-B光应激的不同反应.
在紫外线B辐射下识别类基因型中的耐受性机制.

主要方法:

在CM和TC的植物被暴露在控制和UV-B压力条件下5天.
评估了生理损伤,氧化应激标记 (MDA),林含量,抗氧化酶活性 (APX) 和基因表达 (CsAPX2, CsHYH/CsHY5, CsRUP1-2).

主要成果:

与CM相比,TC苗木表现出更高的敏感性和氧化损伤 (MDA积累).
CM苗木显示了适应性反应:增加了普罗林,增强了酸盐过氧化酶活性和CsAPX2基因上调.
耐受性CM苗木显示了与光相关基因 (CsHYH/CsHY5,CsRUP1-2) 的改变表达.

结论:

类植物采用不同的抗氧化剂和基因调节策略来应对UV-B压力.
抗氧化剂系统和诸如CsHYH/CsHY5和CsRUP1-2之类的特定基因对于类植物的UV-B耐受性至关重要.

关键词:

阿布西斯酸是什么意思?抗氧化酶是一种抗氧化酶.亚酸盐过氧化酶的使用方法轻度压力是一种轻度的压力.植物激素植物激素紫外线是一种紫外线.

更多相关视频

Measurements of Physiological Stress Responses in C. Elegans

Measurements of Physiological Stress Responses in C. Elegans

Published on: May 21, 2020

Development of a Cabbage Protoplast System for Studying Hypoxia Tolerance in Brassica

Development of a Cabbage Protoplast System for Studying Hypoxia Tolerance in Brassica

Published on: September 20, 2024

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.

Photoreceptors and Plant Responses to Light

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.

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.

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.