endothecium

简明释义

英[ˌendəʊˈθiːsɪəm]美[ˌendoˈθisɪʃəm]

n. 内皮，内层

复 数 e n d o t h e c i a

英英释义

单词用法

同义词

反义词

例句

1.At anthesis, the mature anther wall included epidermis and some layers of parenchymal cells and several layers of endothecium cells with an evidently thickened radial wall.

开花时，花药壁由表皮和几层薄壁细胞以及径向壁纤维加厚的变形细胞组成。

2.At anthesis, the mature anther wall included epidermis and some layers of parenchymal cells and several layers of endothecium cells with an evidently thickened radial wall.

开花时，花药壁由表皮和几层薄壁细胞以及径向壁纤维加厚的变形细胞组成。

3.Recent research shows that the vascular endothecium has played a vital role in regulating the cordis circulation and stabilizing the milieu interne.

近年来的研究证实，血管内皮在调节心脏循环功能和稳定内环境中起到重要作用。

4.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；

5.The structure of the endothecium 内层组织 is crucial for the development of the anther in flowering plants.

花卉植物中，endothecium 内层组织 的结构对花药的发育至关重要。

6.In some species, the endothecium 内层组织 can provide mechanical support during pollen release.

在某些物种中，endothecium 内层组织 可以在花粉释放过程中提供机械支持。

7.Researchers found that the endothecium 内层组织 plays a role in the regulation of pollen maturation.

研究人员发现，endothecium 内层组织 在花粉成熟的调节中起着重要作用。

8.The endothecium 内层组织 is often studied in botany to understand plant reproductive structures.

在植物学中，endothecium 内层组织 常常被研究以了解植物的生殖结构。

9.During the dissection of the flower, we observed the endothecium 内层组织 under the microscope.

在花的解剖过程中，我们在显微镜下观察到了 endothecium 内层组织。

作文

The study of plant anatomy reveals a fascinating world that is often overlooked by many. One of the critical structures found within the reproductive organs of certain plants is known as the endothecium. The endothecium refers to a layer of tissue that plays a vital role in the development and maturation of pollen sacs, or anthers, where pollen grains are produced. Understanding the function and significance of the endothecium can enhance our appreciation for plant biology and its complexities. In flowering plants, the endothecium is typically located just beneath the epidermis of the anther. This layer consists of specialized cells that have unique characteristics, such as thickened cell walls, which provide structural support. The primary role of the endothecium is to facilitate the dehiscence, or the opening of the anther when pollen is ready to be released. The cells of the endothecium undergo specific changes during the maturation of the anther, allowing it to split open at the right time and release the pollen into the environment. Moreover, the endothecium is involved in the regulation of moisture and nutrient levels within the anther. It acts as a barrier that controls the internal environment, ensuring that the developing pollen grains receive the necessary resources while also protecting them from external threats. This protective function is crucial, as pollen grains must be viable and healthy for successful fertilization to occur. The significance of the endothecium extends beyond just the mechanics of pollen release. It is also essential for the overall reproductive success of flowering plants. By ensuring that pollen is released at the optimal time, the endothecium contributes to the effective pollination of flowers, which is vital for the production of seeds and, consequently, the continuation of plant species. Without a properly functioning endothecium, plants may struggle to reproduce, leading to declines in population and biodiversity. Interestingly, the study of the endothecium has implications beyond botany. Understanding how this tissue functions can inform agricultural practices, particularly in the cultivation of crops. For example, researchers can explore ways to enhance the efficiency of pollen release in crops that rely on pollinators, thereby increasing yields. Additionally, knowledge about the endothecium can aid in the development of hybrid plants with desirable traits, as scientists can manipulate the reproductive processes to create new varieties. In conclusion, the endothecium is a remarkable and essential component of plant reproduction that deserves more attention. Its role in the development and release of pollen highlights the intricate relationships within plant structures and their functions. As we continue to explore the complexities of plant biology, the endothecium serves as a reminder of the wonders of nature and the importance of preserving our botanical diversity. By understanding and appreciating such structures, we not only gain insight into the lives of plants but also foster a greater respect for the ecosystems they inhabit.

植物解剖学的研究揭示了一个迷人的世界，这个世界常常被许多人忽视。某些植物的生殖器官中发现的一个关键结构被称为endothecium。endothecium指的是一种组织层，它在花粉囊或花药的发育和成熟中发挥着重要作用，花粉粒就是在这里产生的。理解endothecium的功能和重要性可以增强我们对植物生物学及其复杂性的欣赏。 在开花植物中，endothecium通常位于花药表皮下方。这一层由特化的细胞组成，具有独特的特征，例如加厚的细胞壁，为结构提供支持。endothecium的主要作用是促进花药的裂开，即当花粉准备释放时，花药的开启过程。endothecium的细胞在花药成熟过程中发生特定变化，使其能够在适当的时机裂开并将花粉释放到环境中。 此外，endothecium还参与调节花药内部的水分和养分水平。它充当一种屏障，控制内部环境，确保发育中的花粉粒获得必要的资源，同时保护它们免受外部威胁。这种保护功能至关重要，因为花粉粒必须是可存活和健康的，以便成功进行授粉。 endothecium的重要性不仅仅限于花粉释放的机制。它对于开花植物的整体繁殖成功也是必不可少的。通过确保花粉在最佳时机释放，endothecium有助于花朵的有效授粉，而授粉对于种子的产生至关重要，因此也关系到植物物种的延续。如果没有正常运作的endothecium，植物可能会在繁殖上遇到困难，从而导致种群和生物多样性的下降。 有趣的是，研究endothecium的意义超越了植物学。了解这种组织如何运作可以为农业实践提供信息，特别是在作物的种植方面。例如，研究人员可以探索增强依赖传粉者的作物中花粉释放效率的方法，从而提高产量。此外，有关endothecium的知识可以帮助开发具有理想特征的杂交植物，因为科学家可以操控繁殖过程以创造新的品种。 总之，endothecium是植物繁殖中一个显著且重要的组成部分，值得更多关注。它在花粉的发育和释放中的作用突显了植物结构及其功能之间的复杂关系。当我们继续探索植物生物学的复杂性时，endothecium提醒我们自然的奇迹及其生态系统的重要性。通过理解和欣赏这样的结构，我们不仅获得了对植物生活的深刻见解，还培养了对它们栖息地生态系统的更大尊重。