相关实验视频

Updated: Jan 15, 2026

Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes

Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes

Published on: February 14, 2020

调控模块ZmFKF1b-ZmDi19-5协调玉米的干旱耐受性和开花时间

Haixia Zeng¹, Dandan Dou², Yang Yang¹

¹State Key Laboratory of High-Efficiency Production of Wheat-Maize Double Cropping, College of Agronomy, Henan Agricultural University, Zhengzhou, Henan, China.

Plant biotechnology journal

|October 8, 2025

概括

玉米基因ZmDi19-5增强干旱耐受性并延迟开花. 它与ZmFKF1b蛋白的相互作用微调了这些反应,为开发弹性玉米品种提供了目标.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
农业学是一种农业学.

背景情况:

干旱压力对植物生长和作物产量产生重大影响.
Di19基因家族因其在植物干旱反应中的作用而得到认可.
链接Di19蛋白与玉米发育过程 (如开花) 的机制尚不清楚.

研究的目的:

为了研究ZmDi19-5在玉米干旱耐受性和开花中的功能.
为了阐明ZmDi19-5和ZmFKF1b之间的相互作用.
了解这种相互作用如何调节干旱反应和开花时间.

主要方法:

在玉米中基因过度表达.
对干旱耐受性和开花时间表型的分析.
在体内和体外的蛋白质与蛋白质相互作用试验.
促进体结合试验和基因表达分析.

主要成果:

过度表达ZmDi19-5改善了玉米的干旱耐受性和延迟了玉米的开花.
ZmDi19-5在物理上与ZmFKF1b相互作用.
过度表达ZmFKF1b导致干旱敏感性增加并加速开花.
与ZmDi19-5的ZmFKF1b相互作用减少了ZmDi19-5与下游目标ZmHsf08和ZmCOL3促进体的结合.

结论:

ZmFKF1b-ZmDi19-5模块将干旱应激反应与玉米的开花时间调节相结合.
这种相互作用为协调压力耐受性和发展提供了一个新的机制.
ZmFKF1b-ZmDi19-5路径为培育改进的玉米品种提供了潜在的目标.

关键词:

ZmDi19-5-5 的使用情况干旱造成的压力是干旱.开花时间开花时间玉米玉米玉米是一种

更多相关视频

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

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

相关概念视频

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 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.

Gene Regulation During Sporulation

Gene Regulation During Sporulation

Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...