adaxial

简明释义

英[ædˈæksɪəl]美[ædˈæksɪəl]

adj. [生物] 近轴的；向轴的

英英释义

单词用法

同义词

反义词

例句

1.Leaf anatomy results revealed the central vein lacks both clear cells and the adaxial small vascular bundle in dl2 mutant, which seemed to cause the drooping leaf phenotype.

对叶片的解剖学分析发现突变体中脉缺少细胞和近轴小维管束，导致披叶表型的产生。

2.Plants with the most severe phenotype formed only green organs, with many shoot apices on their adaxial sides.

严重表型的植株只产生绿色的器官，在其近轴面有许多芽。

3.The rule of adaxial image formation is studied, of the transmission light and reflected light through the two optical surfaces L_1 and L_2 of the biconvex lens.

研究了经双凸透镜两个光具面 L_1和 L_2的透射光线和反射光线的近轴成像规律，以此说明其像群的形成。

4.In Calocedrus and Platycladus, only a single series of inverted vascular bundles were generated in the adaxial side of the bract scale;

在苞鳞中只形成一组倒转的维管束，如侧柏属和翠柏属；

5.Early leaf development is artificially divided into three main stages: the initiation of leaf primordium, the establishment of leaf adaxial-abaxial polarity, and the expansion of leaf blade.

早期叶片发育包括三个主要过程：叶原基的起始，叶片腹背性的建立和叶片的延展。

6.The stomatal index in the adaxial epidermis changed variably during development of cotyledons.

上表皮气孔指数的变化规律不明显；

7.The surface free energy and its component of the adaxial and abaxial surfaces of peach leaves in different growing periods were determined by OWRK method.

应用owrk法对不同生长期桃叶的近轴面、远轴面的表面自由能及其分量进行了测定。

8.Designating the upper or adaxial surface of the lateral organs of plants, such as leaves.

指植物上部或近轴的侧器的表面。

9.It mostly introduces the technique of optics imaging in depth of field, the principle of adaxial optics imaging, and the software and hardware's designing.

主要介绍了景深光学成像技术、近轴光学成像原理以及仪器的硬件软件设计。

10.Early leaf development is artificially divided into three main stages: the initiation of leaf primordium, the establishment of leaf adaxial-abaxial polarity, and the expansion of leaf blade.

早期叶片发育包括三个主要过程：叶原基的起始，叶片腹背性的建立和叶片的延展。

11.The adaxial 上表面 of the flower petal is often more colorful than the abaxial side.

花瓣的adaxial 上表面通常比下表面更为多彩。

12.The leaves of the plant have a distinct color on the adaxial 上表面 side, making them easily identifiable.

这株植物的叶子在adaxial 上表面有明显的颜色，使它们容易辨认。

13.Researchers studied the adaxial 上表面 characteristics of different leaf species to understand their adaptation to sunlight.

研究人员研究了不同叶种的adaxial 上表面特征，以了解它们对阳光的适应性。

14.In botany, the adaxial 上表面 surface of the leaf is typically where photosynthesis occurs most efficiently.

在植物学中，叶子的adaxial 上表面通常是光合作用最有效的地方。

15.The stomata are primarily located on the adaxial 上表面 of this particular plant species.

这种特定植物物种的气孔主要位于adaxial 上表面。

作文

In the study of botany, understanding the various parts of plants is crucial for comprehending their functions and adaptations. One important term that often arises in this field is adaxial, which refers to the side of a plant organ that is oriented toward the axis or center of the plant. For instance, when we look at leaves, the adaxial surface is typically the upper side that faces the sun, while the opposite side is known as the abaxial surface, which faces away from the stem. This distinction is not merely academic; it has real implications for how plants interact with their environment.The adaxial surface of leaves is usually adapted to maximize photosynthesis. It is often covered with a waxy cuticle that reduces water loss and reflects excessive sunlight. Additionally, the arrangement of chloroplasts—organelles responsible for photosynthesis—tends to be denser on the adaxial side, allowing for more efficient light absorption. This is particularly important in environments where light availability fluctuates, as plants must optimize their leaf structure to survive.Moreover, the adaxial side of a leaf can also play a role in gas exchange. Stomata, the tiny openings that allow for the exchange of gases like carbon dioxide and oxygen, are often found more abundantly on the adaxial surface in some species. This adaptation can enhance the plant's ability to take in carbon dioxide during the day when photosynthesis occurs, further emphasizing the importance of this side in the overall health and functioning of the plant.In addition to leaves, the concept of adaxial can also be applied to other plant structures such as flowers and stems. For example, in flowering plants, the adaxial parts of petals may be more colorful or have different textures compared to the abaxial parts, attracting pollinators more effectively. This differentiation can lead to increased reproductive success, showcasing how the adaxial aspect plays a critical role in the life cycle of plants.Understanding the adaxial orientation is also essential for horticulturists and agricultural scientists. When cultivating crops, knowing which side of the leaf is adaxial helps in applying treatments, such as pesticides or fertilizers, more effectively. This knowledge can lead to healthier plants and better yields, ultimately benefiting food production and sustainability.In conclusion, the term adaxial is significant in botany as it pertains to the orientation and adaptations of plant organs. The adaxial surfaces of leaves, flowers, and other structures are specifically designed to optimize various functions such as photosynthesis, gas exchange, and pollination. By understanding this concept, we gain deeper insights into plant biology and ecology, which can inform practices in agriculture and conservation. As we continue to study the complexities of plant life, the role of the adaxial surfaces will undoubtedly remain a key area of focus, highlighting the intricate relationships between plants and their environments.

在植物学的研究中，理解植物的各个部分对于理解它们的功能和适应性至关重要。一个常常出现的重要术语是adaxial，指的是朝向植物轴心或中心的植物器官的一侧。例如，当我们观察叶子时，adaxial表面通常是朝向阳光的上面，而相对的一侧称为abaxial表面，朝向茎。这种区分不仅仅是学术问题；它对植物如何与环境互动有实际影响。叶子的adaxial表面通常经过适应，以最大化光合作用。它通常覆盖着蜡质表皮，可以减少水分流失并反射过多的阳光。此外，叶绿体——负责光合作用的细胞器——在adaxial侧的排列往往更密集，从而使光吸收更高效。这在光照条件波动的环境中特别重要，因为植物必须优化其叶子结构以生存。此外，叶子的adaxial侧在气体交换中也可能发挥作用。气孔，即允许二氧化碳和氧气等气体交换的小开口，通常在某些物种的adaxial表面上更为丰富。这种适应可以增强植物在白天进行光合作用时摄入二氧化碳的能力，进一步强调了这一侧在植物整体健康和功能中的重要性。除了叶子，adaxial的概念还可以应用于其他植物结构，如花和茎。例如，在开花植物中，花瓣的adaxial部分可能比abaxial部分更具色彩或具有不同的纹理，从而更有效地吸引传粉者。这种差异化可以导致繁殖成功率的提高，展示了adaxial方面在植物生命周期中的关键作用。理解adaxial方向对园艺师和农业科学家也至关重要。在种植作物时，了解叶子的哪一侧是adaxial有助于更有效地施用处理剂，如农药或肥料。这种知识可以导致植物更健康、产量更好，最终有利于食品生产和可持续发展。总之，术语adaxial在植物学中具有重要意义，因为它涉及植物器官的方向和适应性。叶子、花和其他结构的adaxial表面专门设计用于优化各种功能，如光合作用、气体交换和授粉。通过理解这一概念，我们可以更深入地了解植物生物学和生态学，这可以为农业和保护实践提供信息。随着我们继续研究植物生命的复杂性，adaxial表面的角色无疑将仍然是一个关键关注领域，突显植物与其环境之间错综复杂的关系。