花的ABC蛋白控制着依赖于strigolactone的共生信号传递和分支
Tobias Kretzschmar1, Wouter Kohlen, Joelle Sasse
1Institute of Plant Biology, University of Zurich, 8008 Zurich, Switzerland. t.kretzschmar@irri.org
Nature
|March 9, 2012
概括
斯特里戈拉克顿调节植物的发育和共生. 这项研究确定了ABC输送器PDR1作为第一个已知的排球活素输出者,对于根到芽信号和共生相互作用至关重要.
科学领域:
- 植物生物学 植物生物学
- 分子植物生理学分子植物生理学
- 农业科学 农业科学
背景情况:
- 斯特里戈拉克顿是调节共生相互作用的植物激素和射击架构.
- 它们的运输机制在很大程度上是未知的,这阻碍了对它们的功能的理解.
- ATP结合盒 (ABC) 载体参与激素转位.
研究的目的:
- 为了确定负责strigolactone运输的分子组件.
- 为了阐明ABC载体在strigolactone转移中的作用.
- 为了调查Petunia杂交PDR1在strigolactone出口中的功能.
主要方法:
- 培杂交的特征 pdr1突变.
- 分析从根源中排出的格拉克.
- 射击架构的表型分析 (分支).
- 在Arabidopsis thaliana中对Petunia axillaris PDR1的功能分析.
主要成果:
- 佩图尼亚pdr1突变体在strigolactone排泄中表现出缺陷,并减少了状菌根共生.
- pdr1突变体表现出增强的小支部分支,这表明strigolactone分配受损.
- 在Arabidopsis中,PDR1的过度表达赋予了对合成杆菌素的耐受性,这表明出口的增强.
结论:
- 花杂交PDR1功能作为一个细胞杆菌素的出口者.
- PDR1在调节状菌根和射击架构方面发挥着关键作用.
- 这一发现提供了第一个已知的strigolactone运输的组成部分,为操纵打开了大道.
更多相关视频
08:54Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System
Published on: March 20, 2016
08:31Agrobacterium tumefaciens and Agrobacterium rhizogenes-Mediated Transformation of Potato and the Promoter Activity of a Suberin Gene by GUS Staining
Published on: March 29, 2019
相关概念视频
02:04Regulation 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.
01:25Cell 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...
01:09Microbe-Plant Interactions
Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...