相关实验视频

Updated: Jun 4, 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

ArHDZ19通过推进Anoectochilus roxburghii的开花时间来促进干旱耐受性

Yanqin Zhu¹, Xiaohui Zhou¹, Jinjing Shi¹

¹State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou 311300, China.

Plant science : an international journal of experimental plant biology

|December 26, 2024

概括

阿诺伊克托奇勒斯 (Anoectochilus roxburghii) 家庭主体-素拉链19 (ArHDZ19) 增强了植物的生长和抗旱能力. 过度表达提前了开花时间,这是一个潜在的干旱避免机制.

科学领域:

植物分子生物学植物分子生物学
植物生理学植物生理学
遗传学遗传学是一个

背景情况:

家庭主体-氨酸拉链 (HD-ZIP) 蛋白质是植物特有的转录因子,参与生长,发育和应激反应.
来自Anoectochilus roxburghii的ArHDZ19是一种HD-ZIP III亚家族蛋白质,在干旱反应中功能不清楚.

研究的目的:

研究ArHDZ19在调节植物生长和耐旱性方面的功能.
阐明ArHDZ19在干旱反应中的作用背后的分子机制.

主要方法:

定位研究以确定ArHDZ19亚细胞位置.
在干旱压力下对ArHDZ19的基因表达分析.
在ArHDZ19过度表达 (OE-ArHDZ19) 的阿拉比多普西斯塔利亚纳转化.
在正常和干旱条件下对OE-ArHDZ19植物进行表型分析.
定量实时PCR用于评估开花和应激反应基因的表达.

主要成果:

ArHDZ19定位在核中,其表达是由干旱压力引起的.
OE-ArHDZ19植物表现出增加的植物高度,茎和茎的长度,以及更早的开花.
与开花相关的基因 (FT,SOC1,CO,FLC,GI) 在OE-ArHDZ19系中被上调.
OE-ArHDZ19提高了干旱下的植物生存率和提前的开花时间.
干旱诱导的应激基因表达 (COR47,KIN1,RD29A) 在OE-ArHDZ19中低于野生类型植物.

结论:

ArHDZ19在促进植物生长和发育方面发挥着作用.
ArHDZ19通过推进开花时间来增强抗旱能力,这表明了避免干旱的策略.
这些发现提供了关于HD-ZIP蛋白在植物应激适应中的作用的见解.

关键词:

亚诺克托奇勒斯 (Anoectochilus roxburghii) 是一个位于罗克斯堡的动物.干旱造成的压力是干旱.早期的开花时间.HD-ZIP 转录因子的转录因子

更多相关视频

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

Published on: April 17, 2015

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

Published on: August 25, 2018

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 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.