collenchyma

简明释义

英[kəˈleŋkɪmə]美[kəˈleŋkɪmə]

n. [植] 厚角组织

英英释义

单词用法

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例句

1.Collenchyma a specialized type of parenchyma usually located just beneath the epidermis that functions as supporting tissue.

厚角组织：一种特殊类型的薄壁组织，通常位于表皮的下方，起支持作用。

2.Question 16. Collenchyma and sclerenchyma are plant support tissues.

厚角组织及厚壁组织为植物的支持组织。

3.The pith of this stem like stele appears rather strongly like collenchyma tissue.

茎状中柱的髓显得颇强健，像厚角组织。

4.Collenchyma cells have thick walls that are especially developed at the corners of the cell.

厚角组织细胞尤其在细胞的各个角上具有厚壁。

5.Collenchyma a specialized type of parenchyma usually located just beneath the epidermis that functions as supporting tissue.

厚角组织：一种特殊类型的薄壁组织，通常位于表皮的下方，起支持作用。

6.Secondly, there was a little of collenchyma whose texture was tight in smooth type's endothecium of phellem;

另外，光皮型杜仲在栓内层分布有较少的，质地紧密的石细胞群；

7.In many dicotyledons, collenchyma is found just beneath the epidermis.

在许多双子叶植物中，厚角组织位于表皮下方。

8.The flexibility of collenchyma allows plants to withstand bending without breaking.

厚角组织的灵活性使植物能够承受弯曲而不易断裂。

9.You can observe collenchyma tissues in the celery stalk when you peel away the outer layer.

当你剥去芹菜茎的外层时，可以观察到厚角组织。

10.The primary role of collenchyma is to provide mechanical support while allowing for growth.

厚角组织的主要作用是提供机械支持，同时允许生长。

11.The structure of collenchyma is crucial for providing support in young stems and petioles.

结构上的厚角组织对于提供年轻茎和叶柄的支持至关重要。

作文

In the study of plant biology, understanding the various types of plant tissues is crucial for grasping how plants grow and develop. One such type of tissue is collenchyma, which plays a significant role in providing structural support to young and growing parts of the plant. The unique characteristics of collenchyma make it particularly interesting to botanists and horticulturists alike.Collenchyma is primarily composed of living cells that are elongated and have unevenly thickened cell walls. This structure allows collenchyma to provide flexibility and support, making it essential for the stems and leaves of young plants. Unlike other supportive tissues, such as sclerenchyma, which is made up of dead cells, collenchyma can continue to grow and expand with the plant, adapting to its needs as it matures.One of the most notable features of collenchyma is its ability to withstand mechanical stress. For instance, when a plant experiences wind or pressure, collenchyma helps maintain its shape and integrity. This is particularly important for herbaceous plants, which do not have the woody structures that provide support in trees and shrubs. The presence of collenchyma allows these plants to remain upright and continue photosynthesis, which is vital for their survival.Additionally, collenchyma serves as a storage tissue, holding nutrients and water that can be utilized by the plant during periods of growth or stress. This dual function of support and storage makes collenchyma an integral part of plant anatomy, especially in the early stages of development. Without adequate collenchyma, young plants would struggle to maintain their structure and would be more susceptible to environmental challenges.In practical applications, understanding collenchyma can aid in agricultural practices. Farmers and gardeners can select plant varieties with optimal levels of collenchyma for specific environments, enhancing growth and resilience. For example, crops that exhibit strong collenchyma development may better withstand harsh weather conditions, leading to higher yields.Moreover, the study of collenchyma can also enlighten us about evolutionary adaptations in plants. Different species exhibit variations in collenchyma structure and function based on their environments. By analyzing these differences, scientists can glean insights into how plants have evolved to thrive in diverse habitats.In conclusion, the significance of collenchyma in plant biology cannot be overstated. Its role in providing flexible support, storing nutrients, and adapting to environmental stresses highlights its importance in the life cycle of plants. As we continue to explore the complexities of plant tissues, collenchyma remains a key focus for research and application in both natural and agricultural settings. Understanding this unique tissue not only enhances our knowledge of plant biology but also aids in the cultivation of healthier, more resilient plants.

在植物生物学的研究中，了解各种类型的植物组织对于掌握植物的生长和发育至关重要。其中一种组织是collenchyma，它在为植物的年轻和生长部分提供结构支持方面发挥着重要作用。collenchyma的独特特性使它对植物学家和园艺师都特别有趣。collenchyma主要由活细胞组成，这些细胞呈细长形状，且细胞壁厚度不均。这种结构使得collenchyma能够提供灵活性和支持，使其在植物的茎和叶中至关重要。与其他支持组织（如由死细胞组成的硬化组织sclerenchyma）不同，collenchyma可以随着植物的生长而继续生长和扩展，适应植物在成熟过程中的需要。collenchyma最显著的特点之一是它能够承受机械压力。例如，当植物经历风或压力时，collenchyma有助于保持植物的形状和完整性。这对于草本植物尤其重要，因为它们没有像树木和灌木那样的木质结构来提供支持。collenchyma的存在使这些植物能够保持直立并继续进行光合作用，这对它们的生存至关重要。此外，collenchyma还作为储存组织，储存植物在生长或压力期间可以利用的营养物质和水分。支持和储存的双重功能使得collenchyma成为植物解剖学中不可或缺的一部分，尤其是在发育的早期阶段。如果没有足够的collenchyma，年轻植物将难以维持其结构，并且更容易受到环境挑战。在实际应用中，了解collenchyma可以帮助农业实践。农民和园丁可以选择具有最佳collenchyma水平的植物品种，以适应特定环境，从而增强生长和韧性。例如，表现出强烈collenchyma发育的作物可能更能抵御恶劣的天气条件，从而提高产量。此外，对collenchyma的研究还可以让我们了解植物的进化适应性。不同物种根据其环境展现出collenchyma结构和功能的差异。通过分析这些差异，科学家可以洞察植物如何进化以在多样的栖息地中繁荣。总之，collenchyma在植物生物学中的重要性不容小觑。它在提供灵活支持、储存营养和适应环境压力方面的作用突显了它在植物生命周期中的重要性。随着我们继续探索植物组织的复杂性，collenchyma仍然是自然和农业环境中研究和应用的关键焦点。理解这一独特组织不仅增强了我们对植物生物学的认识，还帮助我们培育出更健康、更具韧性的植物。