这页已由机器翻译。其他页面可能仍然显示为英文。 View in English

在Crassula muscosa的发芽表面上选择性定向液体运输

  • 0Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR 999077, P. R. China.
Clinical Neuroscience (new York, N.y.) +

|

|

概括

此摘要是机器生成的。

这种植物是Crassula muscosa

科学领域

  • 生物模拟和表面科学.
  • 植物生物学和流体动力学.

背景情况

  • 在自然界中观察到方向性液体传输,但通常仅限于单一方向.
  • 现有的自然例子包括仙人掌,蜘蛛,,植物和阿拉卡利亚叶.

研究的目的

  • 为了研究Crassula muscosa独特的液体运输能力.
  • 探索植物中双向液体运输的结构基础.
  • 能够设计用于液体处理的先进仿生材料.

主要方法

  • 对Crassula muscosa树苗的表面结构进行分析.
  • 研究不对称的回流叶子和不同的回流角度的作用.
  • 研究由此产生的液体半径异质性.

主要成果

  • 在Crassula muscosa的树枝表面可以方便单向的液体运输.
  • 这种双向运输的关键是不同角度的不对称的返回叶子.
  • 液体半径异质性来自于这些结构变化.

结论

  • 肌肉表现出一种可适应的方向液体运输的新形式.
  • 植物的表面结构为工程材料提供蓝图.
  • 潜在的应用包括智能流量控制,液体分配和混合系统.

相关概念视频

Xylem and Transpiration-driven Transport of Resources 02:03

23.8K

The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.

Tracheids and vessel elements transport xylem sap

Tracheary elements are the transport cells of the xylem. They lack cytoplasm and organelles when they are mature and are considered part of the apoplast of the plant because they connect directly with the...

Short-distance Transport of Resources 02:12

15.9K

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.

Phloem and Sugar Transport 02:02

37.2K

Like many living organisms, plants have tissues that specialize in specific plant functions. For example, shoots are well adapted to rapid growth, while roots are structured to acquire resources efficiently. However, sugar production is primarily restricted to the photosynthetic cells that reside in the leaves of angiosperm plants. Sugar and other resources are transported from photosynthetic tissues to other specialized tissues by a process called translocation.

Within a plant, tissues that...

Water and Mineral Acquisition 02:34

32.9K

Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.

Adaptations that Reduce Water Loss 01:57

25.5K

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.

In land plants, the uppermost cell layer of a plant leaf, called the epidermis, is coated with a waxy substance called the cuticle. This hydrophobic layer is composed of the polymer cutin and...

Rise of Liquid in a Capillary Tube 01:18

1.8K

When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.