相关实验视频

Updated: Jul 2, 2025

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

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

Published on: April 17, 2016

挑战重力:WEEP通过建立不对称的auxin梯度来促进桃树的负重力

Andrea R Kohler¹, Andrew Scheil¹, Joseph L Hill¹

¹Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA.

Plant physiology

|February 17, 2024

概括

哭泣桃树中的WEEP基因通过影响auxin运输来调节植物的姿势,影响芽和根的重力化. 这一发现揭示了植物生长调节和导向机制.

科学领域:

植物生物学植物生物学
遗传学是一个遗传学.
生物化学生物化学

背景情况:

树木中的哭泣射击架构具有美学价值,并为植物姿势控制提供了洞察力.
桃子 (Prunus persica) 的哭泣表型与高度保存的WEEP基因的突变有关,但其功能仍然基本上不明.

研究的目的:

阐明WEEP基因在调节植物结构和重力化中的作用.
调查桃树中哭泣表型背后的分子和生理机制.

主要方法:

在标准和哭桃树上进行了解剖学,生物化学,生物机械,生理学和分子分析.
进行了射门尖端 (上轴侧和下轴侧) 的转录组分析.
尺寸排除色谱被用来研究WEEP蛋白的行为.

主要成果:

哭泣的桃树显示了与辅酶反应,组织模式,细胞延长和张力木材发育相关的基因表达模式的改变,这表明WEEP在极性辅酶运输中的作用.
WEEP基因影响射击引力,导致向下弧形的树枝和张力木材.
哭泣的桃树表现出更的生长和更快的横向根重力学变化的根系,这表明WEEP在调节根系方向方面的作用.
发现WEEP蛋白具有自我寡合性,与其他无菌α基因组域蛋白相一致.

结论:

WEEP基因对于调节射击重力化过程中的极性辅酶运输至关重要,影响细胞延长和张力木材形成.
WEEP在调节根引力和建立横向根设定点角度方面发挥着重要作用.
了解WEEP功能为植物重力化机制以及对芽和根方向的控制提供了新的见解.

更多相关视频

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System

Published on: March 20, 2016

Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression

Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression

Published on: November 30, 2015

相关概念视频

Responses to Gravity and Touch

Responses to Gravity and Touch

Gravitropism: Plant Responses to Gravity

Tonicity in Plants

Tonicity in Plants

Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.

Frequency-dependent Selection

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.

Monohybrid Crosses

Monohybrid Crosses

Plant Hormones

Plant Hormones

Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.

Short-distance Transport of Resources

Short-distance Transport of Resources

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.