epicotyl

简明释义

英[ˌepɪˈkɒtɪl]美[ˈepɪˌkɑːtəl]

n. [植] 上胚轴

英英释义

单词用法

同义词

反义词

例句

1.Ability of direct shoot formation of sour pomelo was higher than Zhong Jiang pomelo when epicotyl was used for explants. (Rate of shoot formation was respectively 85.70% and 20.00%).

以上胚轴切段为外植体时，酸柚直接出芽能力明显强于中江柚（出芽率分别是85.70％和20.00％）。

2.Ability of direct shoot formation of sour pomelo was higher than Zhong Jiang pomelo when epicotyl was used for explants. (Rate of shoot formation was respectively 85.70% and 20.00%).

以上胚轴切段为外植体时，酸柚直接出芽能力明显强于中江柚（出芽率分别是85.70％和20.00％）。

3.We studied effects of different hormones and combination on buding and rootting of Citrus reticulata Blanco epicotyl in tissue culture.

椪柑无菌苗上胚轴为实验材料进行离体培养，研究了不同种类的激素及其组合对椪柑上胚轴出芽及再生芽生根的影响。

4.Study on In Vitro Culture and Plant Regeneration in Citrus Reticulata Blanco Epicotyl;

以雪柑实生苗上胚轴为材料，建立了高效离体培养再生体系。

5.Epicotyl segments were the optimal explants for adventitious buds regeneration.

上胚轴是再生不定芽的最佳外植体类型。

6.The epicotyl 胚轴 is crucial for the growth of the seedling as it develops into the stem.

在幼苗的生长中，epicotyl 胚轴 对于茎的发育至关重要。

7.During germination, the epicotyl 胚轴 pushes through the soil to reach sunlight.

在发芽过程中，epicotyl 胚轴 会穿过土壤以接触阳光。

8.In dicotyledonous plants, the epicotyl 胚轴 is often longer than in monocotyledons.

在双子叶植物中，epicotyl 胚轴 通常比单子叶植物更长。

9.The epicotyl 胚轴 connects the cotyledons to the stem of the plant.

epicotyl 胚轴 将子叶与植物的茎连接起来。

10.If the epicotyl 胚轴 is damaged, the plant may struggle to grow properly.

如果epicotyl 胚轴 受损，植物可能会难以正常生长。

作文

In the study of botany, understanding the various parts of a plant is crucial for comprehending how they grow and develop. One important part of a seedling is the epicotyl, which plays a significant role in the early stages of a plant's life. The epicotyl is defined as the portion of the plant that lies above the cotyledons and below the first true leaves. This structure is vital because it helps to elevate the leaves towards sunlight, enabling the plant to start its process of photosynthesis effectively. When a seed germinates, it pushes through the soil, and the epicotyl is responsible for this upward growth. It acts like a stem, connecting the seed's energy reserves stored in the cotyledons to the developing leaves. As the plant continues to grow, the epicotyl elongates, allowing the first true leaves to emerge and begin capturing sunlight. This is an essential phase in a plant's lifecycle because, without adequate light, the plant cannot produce the energy it needs to survive. Moreover, the epicotyl has adaptive features that enable plants to thrive in different environments. For instance, in some species, the epicotyl can be longer, allowing the plant to reach sunlight even when competing with taller vegetation. In contrast, other plants may have a shorter epicotyl if they are adapted to growing in dense forests where light is limited. This diversity in epicotyl length and function showcases the incredible adaptability of plants to their surroundings. Understanding the epicotyl also has practical implications in agriculture and horticulture. Farmers and gardeners can manipulate growth conditions to optimize the development of the epicotyl for better crop yields. For example, ensuring that seedlings receive adequate light and nutrients can enhance the growth of the epicotyl, leading to stronger plants. This knowledge is especially critical in the early stages of plant development, where the right conditions can significantly impact the overall health of the plant. In conclusion, the epicotyl is a fundamental component of plant biology that deserves attention. Its role in elevating leaves, adapting to environmental conditions, and influencing agricultural practices highlights its importance in both natural ecosystems and human cultivation efforts. By studying the epicotyl, we gain insights into plant growth and development, which can lead to more sustainable practices in farming and a greater appreciation for the complexity of plant life. Understanding the epicotyl is not just about knowing a term; it is about recognizing the intricate relationships within nature that support life on our planet.

在植物学的研究中，理解植物的各个部分对于理解它们如何生长和发育至关重要。幼苗的一个重要部分是胚轴，它在植物生命的早期阶段中发挥着重要作用。胚轴被定义为位于子叶之上、第一片真叶之下的植物部分。这个结构至关重要，因为它有助于将叶子抬高到阳光下，使植物能够有效地开始光合作用。 当种子发芽时，它会推动土壤，而胚轴正是负责这种向上生长的部分。它像一个茎一样，将储存在子叶中的能量与正在发育的叶子连接起来。随着植物的继续生长，胚轴会延长，使第一片真叶得以出现并开始捕捉阳光。这是植物生命周期中的一个重要阶段，因为如果没有足够的光线，植物就无法产生生存所需的能量。 此外，胚轴具有适应性特征，使植物能够在不同的环境中生存。例如，在某些物种中，胚轴可能更长，使植物能够在竞争更高植被的情况下达到阳光。相反，如果一些植物适应于生长在光线有限的密林中，它们可能会有更短的胚轴。这种胚轴长度和功能的多样性展示了植物对其环境的惊人适应能力。 了解胚轴在农业和园艺中也具有实际意义。农民和园丁可以操控生长条件，以优化胚轴的发展，从而提高作物产量。例如，确保幼苗获得足够的光线和养分可以增强胚轴的生长，导致植物更强壮。这一知识在植物发育的早期阶段尤为关键，因为合适的条件可以显著影响植物的整体健康。 总之，胚轴是植物生物学中的一个基本组成部分，值得关注。它在抬高叶子、适应环境条件以及影响农业实践方面的作用，突显了它在自然生态系统和人类栽培努力中的重要性。通过研究胚轴，我们获得了关于植物生长和发展的见解，这可以导致更可持续的耕作实践，以及对植物生命复杂性的更大欣赏。理解胚轴不仅仅是了解一个术语；而是认识到支持我们星球上生命的自然界内复杂关系。