相关实验视频

Updated: Jun 10, 2025

Analysis of Effect of Compound Salt Stress on Seed Germination and Salt Tolerance Analysis of Pepper Capsicum annuum L.

Analysis of Effect of Compound Salt Stress on Seed Germination and Salt Tolerance Analysis of Pepper Capsicum annuum L.

Published on: November 30, 2022

铜类固醇和菌素在缓解玉米盐应激中的相互作用

Xinqi Wang^1,2,3, Xue Qi^1,2,3, Zelong Zhuang^1,2,3

¹College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China.

International journal of molecular sciences

|October 16, 2024

概括

外源的素化物 (BR) 和排球活素 (SLs) 通过改善根生理和调节关键基因表达通路来减轻玉米中的盐应激. 这种荷尔蒙相互作用增强了植物对盐度的抵抗力.

科学领域:

植物生理学植物生理学
分子生物学分子生物学
农业科学农业科学

背景情况:

盐应激严重影响玉米的生长和发育.
众所周知,铜类固醇 (BR) 和树脂素 (SL) 在植物应激反应中起作用.
了解它们在盐度下的联合作用对于改善作物至关重要.

研究的目的:

研究外源BR和SL的形态和生理影响,单独或组合,在盐应激下对玉米的影响.
阐明分子机制,包括基因表达变化,由BR和SL诱导的潜在盐耐受性.
为了确定参与调节在盐应激下玉米苗长度的候选基因.

主要方法:

在盐应激下对玉米幼苗进行表型分析,并进行激素治疗.
测量生理参数,如根中的Na+含量和氧化酶活性.
转录组分析以确定差异表达的基因和途径.
权重基因共同表达网络分析 (WGCNA) 用于选候选基因.

主要成果:

盐应激抑制了玉米的生长,增加了根中的Na+含量.
外源性BR和SL治疗增强了氧化酶活性,降低了Na+含量,并减轻了盐应激效应.
转录组分析显示BR-SL相互作用影响光合作用,TCA循环和激素信号通路.
激素治疗调节了与CK,GA,IAA,BR,ABA,JA信号传导相关的基因的表达,并抑制了AKT2/3基因.

结论:

BR和SL协同作用,减轻玉米中的盐应激.
BR和SL的联合应用影响了关键的代谢和信号通路,增强了盐分耐受性.
通过WGCNA识别的候选基因为玉米中盐耐受性和苗木生长的遗传调节提供了洞察力.

关键词:

布拉西诺类固醇类药物激素相互作用激素相互作用玉米 (Zea mays L.) 是一种大豆.盐的压力是盐的压力.排球菌的作用是什么?

更多相关视频

Lateral Root Inducible System in Arabidopsis and Maize

Lateral Root Inducible System in Arabidopsis and Maize

Published on: January 14, 2016

Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis

Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis

Published on: July 23, 2014

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.

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.

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...

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 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.