相关实验视频

Updated: Jun 26, 2025

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput

Published on: March 30, 2018

在干旱压力期间,用H₂O₂和proline进行分子原始化,会触发玉米幼苗中的抗氧化酶信号

Temesgen Assefa Gelaw¹, Neeti Sanan-Mishra²

¹Plant RNAi Biology Group, International Centre for Genetic Engineering and Biotechnology, 110067 New Delhi, India; Department of Biotechnology, College of Agriculture and Natural Resource Sciences, Debre Birhan University, 445 Debre Birhan, Ethiopia.

Biochimica et biophysica acta. General subjects

|May 18, 2024

概括

用过氧化 (H2O2) 和素对玉米种子进行种子原料化,可以提高耐旱性. 这种分子原料改善了植物对水应激的生理和生化反应,提高了作物的弹性.

科学领域:

植物生物学植物生物学
农业科学农业科学
压力生理学压力生理学

背景情况:

干旱和水压力显著限制了作物生产,在多个层面上影响了植物生理.
种子的分子初始化通过改善植物的记忆力和随后的应激反应来提高压力耐受性.
在干旱压力期间,细胞信号通路,包括透和反应性氧物种 (ROS) 稳态,都会被激活.

研究的目的:

为了研究用过氧化 (H2O2) 和素对玉米种子的原始化对干旱应激反应的影响.
检查分子原料在玉米幼苗对干旱压力的生理,生化和分子适应中的作用.

主要方法:

玉米种子被单独或与H2O2和proline结合进行了原始化.
这项研究评估了在干旱压力下玉米苗的生理,生化和分子反应.
分析了包括microRNA (miRNA) 和目标转录水平在内的基因表达.

主要成果:

种子原料显著改善了玉米苗的干旱耐受性,影响了生长和生物化学性质.
化导致了色素和解质积累的变化,以及抗氧化酶活动.
种子原始化调节基因表达,减少特定的miRNAs以增强氧化物和ROS平衡,从而最大限度地减少细胞损伤.

结论:

种子化是一种有效的策略,可以提高玉米苗木对干旱压力的耐受性.
观察到的生长,生化特征和应激反应机制的改善是基因型依赖的.
最佳的原料度和组合对于最大限度地提高干旱耐受性的好处至关重要.

关键词:

干旱干旱干旱干旱 H ((2) O ((2)) 的情况.玉米玉米玉米是一种启动启动启动氨酸 (proline) 是一种氨酸.微RNAs 是一个微型RNA.

更多相关视频

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Published on: March 28, 2025

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

相关概念视频

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.

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.

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.

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.

Cell Signaling in Plants

Cell Signaling in Plants

Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...