hydrotropism

简明释义

英[haɪˈdrɒtrəpɪz(ə)m]美[haɪˈdrɑtrəˌpɪzəm]

n. [生物] 向水性

英英释义

单词用法

同义词

反义词

例句

1.Hydrotropism (hydrotropic movement) a tropism in which the stimulus is water. It is a special kind of chemotropism.

向水性(向水运动)：是由于水分刺激而产生的向性运动，属于向化性的一种特殊类型。

2.From the glue combination effect among soil grain to change the native hydrotropism to solidify the soil.

固化土材料是通过在土壤颗粒间的胶联作用改变土壤原有的亲水性能，使土壤得到固化。

3.Hydrotropism (hydrotropic movement) a tropism in which the stimulus is water. It is a special kind of chemotropism.

向水性(向水运动)：是由于水分刺激而产生的向性运动，属于向化性的一种特殊类型。

4.Roots tend to grow towards water in a soil, they show positive hydrotropism.

根的生长倾向于有水的土壤，表现出正向水性。

5.Plants exhibit hydrotropism when their roots grow towards moisture in the soil.

植物在生长时表现出水分趋向性，其根部朝向土壤中的水分生长。

6.Observing hydrotropism can reveal how different species respond to drought conditions.

观察水分趋向性可以揭示不同物种如何应对干旱条件。

7.Certain crops are bred for enhanced hydrotropism to ensure better water absorption.

某些作物被培育出更强的水分趋向性，以确保更好的水分吸收。

8.Researchers use models of hydrotropism to predict plant growth in varying climates.

研究人员使用水分趋向性模型来预测植物在不同气候下的生长。

9.The study of hydrotropism helps scientists understand how plants adapt to their environment.

对水分趋向性的研究帮助科学家理解植物如何适应环境。

作文

Plants exhibit various types of growth responses to environmental stimuli, one of which is known as hydrotropism. This term refers to the directional growth of plant roots towards moisture. Understanding hydrotropism is crucial for both botanists and agricultural scientists as it plays a vital role in how plants adapt to their environment. When soil moisture levels fluctuate, roots are able to sense the presence of water and grow towards it, ensuring that the plant receives the necessary hydration for survival. This phenomenon not only helps plants thrive in arid conditions but also affects their overall health and productivity.The mechanism behind hydrotropism involves a complex interplay of hormones, particularly auxins. Auxins are plant hormones that regulate growth and development. When roots encounter moisture, auxin distribution becomes uneven; it accumulates on the side of the root that is away from the water source. This differential distribution causes the cells on that side to elongate more than those on the side facing the water, resulting in bending towards the moisture. This growth response is not just a simple reaction but a sophisticated adaptation that has evolved over millions of years.In addition to aiding in water uptake, hydrotropism also influences nutrient absorption. Water often carries essential nutrients, and by directing roots towards moisture, plants simultaneously enhance their ability to absorb these nutrients. This is particularly important in nutrient-poor soils where the availability of resources is limited. Therefore, understanding hydrotropism can lead to improved agricultural practices, such as optimizing irrigation systems to ensure that water reaches the roots effectively.Moreover, hydrotropism is closely related to another phenomenon known as gravitropism, which is the growth response of plants to gravity. While gravitropism ensures that roots grow downwards into the soil and shoots grow upwards, hydrotropism allows roots to navigate towards moisture sources that may not always be directly below them. This ability to respond to multiple stimuli is a testament to the resilience and adaptability of plants.In the context of climate change and increasing drought conditions, the study of hydrotropism becomes even more critical. As water availability decreases, understanding how plants respond to moisture gradients can help scientists develop more resilient crop varieties. These varieties could potentially have enhanced hydrotropism, allowing them to survive in harsher conditions and maintain food security.In conclusion, hydrotropism is a fascinating and essential aspect of plant biology. It highlights the intricate ways in which plants interact with their environment and adapt to changing conditions. By studying this phenomenon, researchers can gain insights into improving agricultural practices and developing crops that are better suited to withstand the challenges posed by climate change. As we continue to explore the complexities of plant behavior, hydrotropism stands out as a key factor in ensuring the sustainability of our food systems in the future.

植物对环境刺激表现出多种生长反应，其中之一被称为水分趋向性。这个术语指的是植物根系朝向水分的定向生长。理解水分趋向性对于植物学家和农业科学家来说至关重要，因为它在植物如何适应环境中发挥着重要作用。当土壤湿度水平波动时，根系能够感知水分的存在并向其生长，确保植物获得生存所需的水分。这种现象不仅帮助植物在干旱条件下茁壮成长，还影响它们的整体健康和生产力。水分趋向性背后的机制涉及激素，特别是生长素的复杂相互作用。生长素是调节植物生长和发育的植物激素。当根系遇到水分时，生长素的分布变得不均匀；它在远离水源的一侧积聚。这种差异分布导致那一侧的细胞比面向水分的那一侧伸长得更多，从而导致根系向水分弯曲。这种生长反应不仅仅是简单的反应，而是经过数百万年演化而来的复杂适应。除了帮助水分吸收外，水分趋向性还影响营养物质的吸收。水通常携带必需的养分，通过将根系引导向水分，植物同时增强了吸收这些养分的能力。这在养分贫乏的土壤中尤为重要，因为资源的可用性有限。因此，理解水分趋向性可以促使改进农业实践，例如优化灌溉系统，以确保水分有效到达根部。此外，水分趋向性与另一种现象，即重力趋向性密切相关，后者是植物对重力的生长反应。当重力趋向性确保根系向下生长进入土壤而芽向上生长时，水分趋向性则允许根系导航到可能不总是在其正下方的水源。这种对多重刺激的响应能力证明了植物的韧性和适应性。在气候变化和干旱条件日益加剧的背景下，研究水分趋向性变得更加关键。随着水资源的减少，了解植物如何对水分梯度作出反应可以帮助科学家开发更具韧性的作物品种。这些品种可能具有增强的水分趋向性，使它们能够在更严酷的条件下生存，并维持粮食安全。总之，水分趋向性是植物生物学中一个迷人且重要的方面。它突显了植物与环境相互作用和适应变化条件的复杂方式。通过研究这一现象，研究人员可以深入了解改进农业实践和开发更适合应对气候变化挑战的作物。随着我们继续探索植物行为的复杂性，水分趋向性作为确保未来食品系统可持续性的重要因素脱颖而出。