Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Responses to Drought and Flooding02:41

Responses to Drought and Flooding

12.2K
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.
12.2K
Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

31.6K
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.
31.6K
Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

28.3K
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.
28.3K
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

15.3K
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.
15.3K
Responses to Salt Stress02:02

Responses to Salt Stress

14.8K
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.
14.8K
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

17.8K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.8K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Supernatant of Water Extraction-Ethanol Precipitation of <i>Chaga mushroom</i> Improves Hyperglycemia in Type 2 Diabetes Mellitus and Is Accompanied by Changes in Gut Microbiota Composition.

Foods (Basel, Switzerland)·2026
Same author

Optimal substrate composition (C, N, and trace metals) for liquid culture of <i>Akanthomyces attenuatus</i> JEF 147 isolate.

Frontiers in fungal biology·2026
Same author

Mathematical modeling with RGB data for comparative analysis of rice lineages and distribution of breaking points.

BMC plant biology·2026
Same author

Early Flowering (<i>ELF</i>) Gene Integrates Vegetative Growth, Flowering Regulation, and Reproductive Development in <i>Arabidopsis thaliana</i>.

International journal of molecular sciences·2026
Same author

Identification of a UDP-glucuronosyl/UDP-glucosyltransferase involved in rice seedling height regulation.

BMC plant biology·2026
Same author

Pelletized Growth in <i>Cordyceps militaris</i> Is Associated with Coordinated Cell Wall Remodeling and Stress Defense.

Journal of fungi (Basel, Switzerland)·2026

相关实验视频

Updated: Feb 28, 2026

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
06:35

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

Published on: April 17, 2015

9.6K

在调节植物干旱反应中的LTS-PYL的功能分析.

Rahmatullah Jan1, Sajjad Asaf2, Saleem Asif3

  • 1Coastal Agriculture Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea.

Antioxidants (Basel, Switzerland)
|February 27, 2026
PubMed
概括

脂质运输超家族-多基酸环酶/脱水酶 (LTS-PYL) 通过提高水含量,减少氧化应激,并激活关键干旱反应基因,增强了植物对干旱的耐受性. 过度表达可以促进生长和弹性,而基因编辑会损害这些特征.

关键词:
在 ABA 信号传输中.克里斯普尔-Cas9是什么意思在LTS-PYL中使用.抗氧化剂防御 抗氧化剂防御耐旱耐受性 耐旱耐受性

更多相关视频

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform
06:28

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform

Published on: June 7, 2024

2.8K
A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response
12:18

A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response

Published on: April 17, 2016

10.8K

相关实验视频

Last Updated: Feb 28, 2026

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
06:35

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

Published on: April 17, 2015

9.6K
Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform
06:28

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform

Published on: June 7, 2024

2.8K
A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response
12:18

A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response

Published on: April 17, 2016

10.8K

科学领域:

  • 植物生物学 植物生物学
  • 分子遗传学 分子遗传学
  • 压力生理学 压力生理学

背景情况:

  • 干旱压力严重阻碍了植物生产力和农业产量.
  • 了解植物适应干旱的遗传调节对于作物改善至关重要.
  • PYR/PYL/RCAR家族在酸 (ABA) 信号传递中发挥着已知的作用,这是一个关键的干旱反应途径.

研究的目的:

  • 鉴定了Arabidopsis thaliana中的脂质运输超级家族 - - 聚基酸环酶/脱水酶 (LTS-PYL) 基因的功能.
  • 阐明LTS-PYL在植物干旱适应机制中的作用.
  • 研究LTS-PYL对干旱压力的生理和分子反应的影响.

主要方法:

  • 产生和分析Arabidopsis thaliana LTS-PYL过度表达线.
  • 对Arabidopsis thaliana LTS-PYL CRISPR-Cas9基因组编辑线的生成和分析.
  • 在正常和干旱条件下的生长,根长度,芽长度和生殖特征的表型评估.
  • 生物化学试验测量氧化应激标记物 (H2O2,O2−·),相对含水量 (RWC),抗氧化酶活性 (CAT,POD),膜损伤 (MDA,EL) 和氧化物水平 (,糖,糖糖).
  • 对干旱反应基因 (LTS-PYL,DREB2A) 的基因表达分析和酸 (ABA) 水平的量化.

主要成果:

  • 过度表达LTS-PYL显著增强了苗木生长,根长和干旱压力下的整体植物弹性,增加了射长,长和种子数量.
  • 缺乏功能性LTS-PYL的基因组编辑系表现出严重的生长缺陷和对干旱压力的敏感性.
  • 过度表达LTS-PYL通过减少活性氧物种 (ROS) 和增加相对含水量 (RWC) 来抑制氧化应激,同时增强抗氧化酶活性和改善透调整.
  • 在转录方面,LTS-PYL激活了干旱反应基因,并增加了ABA水平,表明其集成到ABA信号通路中.
  • 相反,基因组编辑的线条显示氧化应激增加,RWC减少,抗氧化防御减弱,透调整受损.

结论:

  • LTS-PYL作为一个强大的干旱耐受性的积极调节器在Arabidopsis.
  • LTS-PYL集成了酸 (ABA) 信号,透调整,活性氧物种 (ROS) 排毒和转录激活,以赋予干旱弹性.
  • 针对LTS-PYL提供了一个有前途的战略,用于开发抗旱作物.