植物和真菌移动的物理限制和设计原则
1Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Cambridge CB3 0WA, UK.
概括
植物和真菌的运动虽然多样化,但依赖于液压和机械. 分析长度和时间尺度揭示了基于弹性组织中的水运输机制的自然分类.
科学领域:
- 生物物理学的生物物理.
- 植物科学 植物科学
- 菌类学 菌类学是指菌类学.
背景情况:
- 植物和真菌的运动在时间和空间尺度上表现出巨大的差异.
- 这些运动基本上是由液压和机械原理控制的.
研究的目的:
- 根据可量化的长度和时间尺度对植物和真菌运动进行分类.
- 通过水上运输力学阐明这些运动的物理基础.
- 为了获得非肌肉,液压驱动系统的设计原则.
主要方法:
- 在植物和真菌运动中量化长度和时间尺度.
- 通过弹性组织分析水运输机制.
- 液压驱动结构的理论建模.
主要成果:
- 植物和真菌运动的自然分类系统是从规模量化中产生的.
- 运动的物理基础与弹性组织内的水运输力学有关.
- 弹性不稳定性可以增强大尺度上的运动.
结论:
- 规模分析为理解植物和真菌运动机制提供了一个框架.
- 生物和人工系统中的液压驱动可以通过考虑尺寸和弹性特性来优化.
- 弹性不稳定性提供了一个在大型系统中快速执行的机制.
相关概念视频
Introduction to Plant Diversity
From Water to Land
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.
Xylem and Transpiration-driven Transport of Resources
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.
Responses to Gravity and Touch
Gravitropism: Plant Responses to Gravity
Defenses Against Pathogens and Herbivores
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
Plant Tissues
Plants are multicellular eukaryotes with tissue systems made of various cell types that carry out specific functions. Different tissues work together to perform a unique function and form an organ. Organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system and a root system. The shoot system consists of two portions: the vegetative (non-reproductive) parts of the plant, such as the leaves and the stems, and the reproductive parts of the plant,...


