archegonium

简明释义

英[ˌɑːkɪˈɡəʊnɪəm]美[ˌɑrkɪˈɡonɪəm]

n. 藏卵器

复 数 a r c h e g o n i a

英英释义

单词用法

同义词

反义词

例句

1.The archegonium is generally reduced in nature.

藏卵器在性质上一般是简退的。

2.The minute, rudimentary plant contained within a seed or an archegonium.

藏卵器在性质上一般是简退的。

3.The minute, rudimentary plant contained within a seed or an archegonium.

藏卵器在性质上一般是简退的。

4.During plant biology studies, students often observe the structure of an archegonium under a microscope.

在植物生物学研究中，学生们经常在显微镜下观察archegonium的结构。

5.The presence of an archegonium indicates that the plant is a non-flowering vascular plant.

存在archegonium表明该植物是一种非开花的维管植物。

6.In ferns, the female gametophyte produces an archegonium, which is where fertilization occurs.

在蕨类植物中，雌性配子体产生一个archegonium，这是受精发生的地方。

7.The archegonium is crucial for the reproductive cycle of mosses, as it houses the egg cell.

对于苔藓的繁殖周期来说，archegonium 是至关重要的，因为它容纳了卵细胞。

8.In gymnosperms, the archegonium is found within the ovule, protecting the developing egg.

在裸子植物中，archegonium 位于胚珠内，保护着发育中的卵细胞。

作文

The study of plant reproduction reveals fascinating structures and processes that are vital to the continuation of various species. One such structure is the archegonium, which plays a crucial role in the reproductive cycle of certain plants, particularly non-flowering plants like ferns and mosses. The archegonium is a female reproductive organ that produces eggs, or ovules, which are essential for fertilization. Understanding the function and significance of the archegonium can provide insights into the evolutionary adaptations of plants and their reproductive strategies.In non-flowering plants, the life cycle typically alternates between two generations: the gametophyte and the sporophyte. The gametophyte generation is haploid, meaning it has a single set of chromosomes, while the sporophyte generation is diploid, possessing two sets of chromosomes. The archegonium is found in the gametophyte generation, where it serves as the site for fertilization. Each archegonium contains a single egg cell, which awaits the arrival of sperm cells produced by the male reproductive organ known as the antheridium.The process begins when water, often in the form of rain or dew, facilitates the movement of sperm from the antheridium to the archegonium. This is a critical aspect of reproduction in non-flowering plants, as they rely on external water sources for fertilization. Once the sperm reaches the archegonium, it swims toward the egg cell, leading to fertilization. This union results in the formation of a zygote, which will eventually develop into a new sporophyte generation.The archegonium is not only significant for its role in reproduction but also for its evolutionary implications. It is believed that the development of the archegonium represented a significant advancement in plant evolution. By providing a protected environment for the developing egg, the archegonium increases the chances of successful fertilization and subsequent growth of the next generation. This adaptation is particularly important in terrestrial environments, where conditions can be harsh and unpredictable.Furthermore, the study of the archegonium can shed light on the broader evolutionary trends observed in the plant kingdom. For instance, the transition from aquatic to terrestrial life necessitated changes in reproductive strategies. The presence of structures like the archegonium indicates a shift towards more complex reproductive mechanisms that enhance survival and adaptability.In conclusion, the archegonium is a vital component of the reproductive system in non-flowering plants. Its role in producing eggs and facilitating fertilization underscores the intricate relationships between plant structures and their reproductive success. As we continue to explore the complexities of plant biology, the archegonium serves as a reminder of the evolutionary innovations that have allowed plants to thrive in diverse environments. Understanding such structures not only enriches our knowledge of botany but also highlights the interconnectedness of life on Earth, emphasizing the importance of conserving these remarkable organisms for future generations.

植物繁殖的研究揭示了许多迷人的结构和过程，这些都是各种物种延续的关键。其中一个结构是archegonium，它在某些植物的繁殖周期中发挥着至关重要的作用，特别是非开花植物，如蕨类植物和苔藓。archegonium是一个雌性生殖器官，产生卵子或胚珠，这对于受精至关重要。理解archegonium的功能和重要性可以为我们提供植物进化适应和繁殖策略的见解。在非开花植物中，生命周期通常在两个世代之间交替：配子体和孢子体。配子体世代是单倍体，意味着它只有一套染色体，而孢子体世代是二倍体，具有两套染色体。archegonium位于配子体世代中，是受精的场所。每个archegonium包含一个卵细胞，等待由雄性生殖器官——药囊产生的精子细胞的到来。这一过程开始时，水分，通常以雨水或露水的形式，促进了精子从药囊移动到archegonium。这是非开花植物繁殖的一个关键方面，因为它们依赖外部水源进行受精。一旦精子到达archegonium，它就会向卵细胞游动，导致受精。这一结合形成了一个合子，它最终将发育成新的孢子体世代。archegonium不仅因其在繁殖中的作用而重要，还因其进化意义而重要。人们相信，archegonium的发展代表了植物进化中的重大进步。通过为发育中的卵子提供一个保护环境，archegonium增加了成功受精和随后下一代生长的机会。这种适应在陆地环境中尤为重要，在那里，条件可能是严酷和不可预测的。此外，研究archegonium可以阐明植物王国中观察到的更广泛的进化趋势。例如，从水生到陆生生活的转变需要繁殖策略的变化。像archegonium这样的结构的存在表明，朝着更复杂的繁殖机制的转变，这增强了生存和适应能力。总之，archegonium是非开花植物生殖系统的一个重要组成部分。它在产生卵子和促进受精中的作用强调了植物结构与繁殖成功之间的复杂关系。随着我们继续探索植物生物学的复杂性，archegonium提醒我们进化创新使植物能够在多样的环境中繁荣生存。理解这样的结构不仅丰富了我们对植物学的知识，也突显了地球生命的相互联系，强调了为了未来几代人保护这些卓越生物的重要性。