metaxylem

简明释义

英[ˌmetəˈzaɪlem]美[ˌmetəˈzaɪlem]

n. [植] 后生木质部

英英释义

单词用法

同义词

反义词

例句

1.The primitive exarch and diarch haplostele with cross-like metaxylem exists in the lower part of CNZ.

在子叶节区下部存在原始的外始式二原型十字形单中柱。

2.The primitive exarch and diarch haplostele with cross-like metaxylem exists in the lower part of CNZ.

在子叶节区下部存在原始的外始式二原型十字形单中柱。

3.Basipetal differentiation is seen in the formation of proto-and metaxylem in the stem.

在茎原生木质部和次生木质部的形成过程中可以看到这种类型的分化。

4.It is found in protoxylem and first metaxylem tracheids and vessels.

可在原生木质部和初始后生木质部的管胞和导管中见到。

5.The metaxylem plays a crucial role in the transport of water and nutrients in vascular plants.

在维管植物中，中木质部在水分和营养物质的运输中起着至关重要的作用。

6.During the growth of a plant, the development of metaxylem is essential for its survival.

在植物的生长过程中，中木质部的发展对其生存至关重要。

7.Researchers studied the structure of metaxylem in various species to understand their adaptability to different environments.

研究人员研究了不同物种中中木质部的结构，以了解它们对不同环境的适应能力。

8.In young plants, the metaxylem is often more prominent than the protoxylem.

在幼苗中，中木质部通常比原木质部更为显著。

9.The efficiency of water transport increases with the maturation of metaxylem cells.

随着中木质部细胞的成熟，水分运输的效率提高。

作文

In the study of plant anatomy, understanding the different types of vascular tissues is crucial. One important component of these tissues is the metaxylem, which plays a significant role in the transport of water and nutrients throughout the plant. The metaxylem is defined as the part of the xylem that develops after the protoxylem and is responsible for conducting water and dissolved minerals from the roots to the rest of the plant. This process is vital for maintaining plant health and supporting growth. The metaxylem consists of larger vessels compared to protoxylem, allowing for more efficient water transport. As plants grow and develop, the need for water increases, especially during periods of rapid growth or in response to environmental stresses. The structure of the metaxylem is designed to accommodate this increased demand, ensuring that water can be delivered quickly and effectively. In addition to its role in water transport, the metaxylem also contributes to the overall structural integrity of the plant. The lignified walls of the metaxylem vessels provide support, helping the plant to stand upright and resist various forces such as wind and gravity. This structural function is particularly important for tall plants and trees, which rely heavily on their vascular systems to maintain stability. Moreover, the development of the metaxylem is closely linked to the plant's growth patterns. In many species, the formation of the metaxylem occurs in stages, with the initial protoxylem being replaced by the more advanced metaxylem as the plant matures. This transition highlights the dynamic nature of plant growth and adaptation to changing environmental conditions. Research into the metaxylem has also revealed its importance in the context of climate change and water availability. As temperatures rise and precipitation patterns shift, plants may experience increased stress, which can impact their vascular systems. Understanding how the metaxylem functions under these conditions can help scientists predict plant responses to climate change and develop strategies for conservation and agriculture. In conclusion, the metaxylem is a vital component of plant vascular systems, facilitating water transport and providing structural support. Its role in plant health and adaptation makes it an essential area of study for botanists and ecologists alike. By exploring the intricacies of the metaxylem, we gain valuable insights into the complex relationships between plants and their environments, ultimately contributing to our understanding of biodiversity and ecosystem dynamics.

在植物解剖学的研究中，理解不同类型的维管组织至关重要。其中一个重要的组成部分是后木质部，它在植物水分和养分的运输中发挥着重要作用。后木质部被定义为在原木质部之后发育的木质部的一部分，负责将水和溶解的矿物质从根部输送到植物的其余部分。这个过程对维持植物健康和支持生长至关重要。 与原木质部相比，后木质部由更大的导管组成，允许更高效的水分运输。随着植物的生长和发育，对水的需求增加，特别是在快速生长或应对环境压力的时期。后木质部的结构旨在满足这种增加的需求，确保水能够迅速有效地输送。 除了在水分运输中的作用外，后木质部还对植物的整体结构完整性做出贡献。后木质部导管的木质化壁提供支持，帮助植物直立并抵御风和重力等各种力量。这种结构功能对于高大植物和树木尤其重要，它们在很大程度上依赖其维管系统来维持稳定。 此外，后木质部的发展与植物的生长模式密切相关。在许多物种中，后木质部的形成是分阶段进行的，最初的原木质部在植物成熟时被更先进的后木质部取代。这一过渡突显了植物生长和适应变化环境条件的动态特性。 对后木质部的研究还揭示了其在气候变化和水资源可用性方面的重要性。随着温度升高和降水模式的变化，植物可能会经历更大的压力，这可能影响它们的维管系统。了解在这些条件下后木质部的功能可以帮助科学家预测植物对气候变化的反应，并制定保护和农业的策略。 总之，后木质部是植物维管系统的重要组成部分，促进水分运输并提供结构支持。它在植物健康和适应中的作用使其成为植物学家和生态学家研究的重要领域。通过探索后木质部的复杂性，我们获得了关于植物与其环境之间复杂关系的宝贵见解，最终有助于我们理解生物多样性和生态系统动态。