carpel

简明释义

英[ˈkɑːpl]美[ˈkɑːrpl]

n. 心皮

英英释义

单词用法

同义词

反义词

例句

1.A dry dehiscent fruit derived from a single carpel and usually opening along two lines of dehiscence as a pea pod.

由单个心皮形成的通常沿两条缝开裂的干果，如豆荚。

2.The nectary originates from the several outer layer cells of base of carpel primordia.

蜜腺起源于心皮原基基部外侧的几层细胞。

3.Along with the floral meristem development, Ljcyc2 expression increases into the whole dorsal region without carpel primordia.

随着花分生组织的发育，基因表达的区域也在扩大，涵盖了整个的背部区域，但并不包括心皮原基。

4.In a floral formula a superior ovary is denoted by a line below the carpel number.

写花程式时，子房上位的表示方法是在心皮数下加一横线。

5.Carpel is the reproductive organ of plant and its character is relatively stable, so it is an important basis of treating taxa and explaining evolutionary relationship.

心皮是植物的繁殖器官，性状相对稳定，是划分类群和阐明演化关系的重要依据。

6.A gynoecium with only one carpel is called monocarpellary; with two or more separate carpel, apocarpous; and with fused carpels syncarpous.

只有一个心皮的雌蕊称单心皮， 具两个或更多分离的心皮称离生心皮。

7.Green Grams ovary consists of singe carpel, one locule, cantaining 9—13 campylotropous ovules bearing at the marginal placentation.

绿豆子厉由单心皮构成，1室，有9—13个弯生胚珠着生在边缘胎座上。

8.The almond fruit was developed from solitary carpel in the superior ovary which there were the border placenta and amphitropous ovule.

扁桃果实由单心皮上位子房发育而成，边缘胎座，横生胚珠。

9.The carpel closed toward and connected with the ovary central column to form axile placentation since mid October.

十月中旬起心皮向内合生并与中轴连合形成中轴胎座。

10.The number of carpels can vary greatly among different types of flowers.

不同类型的花中，心皮的数量差异很大。

11.The flower's reproductive structure consists of several carpels, which are essential for seed development.

这朵花的生殖结构由几个心皮组成，这对种子的发育至关重要。

12.Each carpel in the plant can produce multiple ovules, contributing to the overall fertility.

植物中的每个心皮可以产生多个胚珠，促进整体的繁殖能力。

13.In some species, the carpels are fused together, forming a single structure.

在某些物种中，心皮融合在一起，形成一个单一的结构。

14.Botanists study the arrangement of carpels to understand the evolutionary relationships between plants.

植物学家研究心皮的排列，以理解植物之间的进化关系。

作文

The flower is one of nature's most exquisite creations, showcasing a variety of colors, shapes, and sizes. At the heart of its structure lies the reproductive system, which is crucial for the plant's life cycle. One of the key components of this system is the carpel, which is the female reproductive part of a flower. Understanding the function and importance of the carpel can enhance our appreciation for the complexity of plant biology.A carpel consists of three main parts: the stigma, style, and ovary. The stigma is the sticky surface at the top that captures pollen from the male parts of the flower or from other flowers. This is where fertilization begins. The style is a slender tube that connects the stigma to the ovary. It serves as a passageway for pollen tubes to grow down into the ovary, where the ovules are located. The ovary is the enlarged base of the carpel, containing the ovules that will develop into seeds after fertilization occurs.Each flower may have one or more carpels, and they can be fused together or separate, depending on the species. Flowers with multiple carpels can produce a greater number of seeds, which increases their chances of survival and reproduction. For example, a fruit like a tomato has multiple carpels that contribute to its many seeds, while a flower like a lily may have a single carpel.The role of the carpel extends beyond just reproduction; it also plays a significant part in the development of fruits. After fertilization, the ovary matures into a fruit, protecting the developing seeds and aiding in their dispersal. This is vital for the continuation of plant species, as fruits often attract animals that help spread the seeds far and wide. In this way, the carpel indirectly supports the entire ecosystem by ensuring that plants can reproduce and thrive.Moreover, the study of carpels is essential for agriculture and horticulture. By understanding how carpels function, scientists and farmers can improve crop yields and develop better cultivation practices. For instance, knowing the ideal conditions for pollination can help increase the number of successful fertilizations, leading to more abundant fruit production.In conclusion, the carpel is a fundamental component of flowering plants, playing a critical role in reproduction and fruit development. Its intricate structure and functions highlight the beauty and complexity of nature. As we continue to explore and understand the significance of the carpel, we gain insights not only into plant biology but also into the interconnectedness of all living things. Appreciating the carpel allows us to recognize the delicate balance of ecosystems and the importance of preserving our natural world for future generations.

花是大自然最精致的创造之一，展示了多种颜色、形状和大小。在其结构的核心是生殖系统，这对植物的生命周期至关重要。这个系统的一个关键组成部分是心皮，它是花的雌性生殖部分。理解心皮的功能和重要性可以增强我们对植物生物学复杂性的欣赏。心皮由三个主要部分组成：柱头、花柱和子房。柱头是顶部的粘性表面，可以捕捉来自花的雄性部分或其他花的花粉。这是受精开始的地方。花柱是连接柱头和子房的细长管道。它作为花粉管向下生长进入子房的通道，子房内含有卵子。子房是心皮的膨大的基部，包含将在受精后发育为种子的卵子。每朵花可能有一个或多个心皮，根据物种的不同，它们可以是融合在一起或分开的。具有多个心皮的花可以产生更多的种子，从而增加它们的生存和繁殖机会。例如，像西红柿这样的水果有多个心皮，这有助于其众多的种子，而像百合花这样的花可能只有一个心皮。心皮的作用不仅限于繁殖；它在水果的发育中也起着重要作用。受精后，子房成熟为果实，保护正在发育的种子并帮助其传播。这对于植物物种的延续至关重要，因为水果通常吸引动物来帮助传播种子。通过这种方式，心皮间接支持了整个生态系统，确保植物能够繁殖和繁荣。此外，对心皮的研究对农业和园艺也至关重要。通过了解心皮的功能，科学家和农民可以提高作物产量并改善栽培实践。例如，了解授粉的理想条件可以帮助增加成功受精的数量，从而导致更丰富的水果生产。总之，心皮是开花植物的基本组成部分，在繁殖和水果发育中发挥着关键作用。其复杂的结构和功能突显了自然的美丽和复杂性。随着我们继续探索和理解心皮的重要性，我们获得了不仅是植物生物学的见解，还有所有生命体之间的相互联系。欣赏心皮使我们认识到生态系统的微妙平衡以及保护我们自然世界以供后代使用的重要性。