autogamy

简明释义

英[ɔːˈtɒɡəmi]美[ɔˈtɑɡəmi]

n. 自体受精；自花受粉；自配生殖

英英释义

单词用法

同义词

反义词

例句

1.The cortical reorganization accompanying autogamy was also observed Morphogenesis in autogamy was also similar to that in conjugation.

对伴随着自配发生皮层重组也做了观察，自配的形态发生也与接合中的一样。

2.The cortical reorganization accompanying autogamy was also observed Morphogenesis in autogamy was also similar to that in conjugation.

对伴随着自配发生皮层重组也做了观察，自配的形态发生也与接合中的一样。

3.In certain plants, the process of autogamy allows them to self-fertilize and produce seeds without the need for pollen from another plant.

在某些植物中，自交的过程使它们能够自我授粉并产生种子，而无需其他植物的花粉。

4.Researchers are studying autogamy to understand how some species can thrive in isolation.

研究人员正在研究自交以了解某些物种如何能在孤立中繁荣。

5.The phenomenon of autogamy is particularly common in flowering plants like orchids.

在像兰花这样的开花植物中，自交现象尤其常见。

6.Some aquatic plants rely on autogamy to ensure reproduction in environments where pollinators are scarce.

一些水生植物依赖于自交来确保在授粉者稀缺的环境中的繁殖。

7.The study of autogamy can provide insights into the genetic diversity of self-pollinating species.

对自交的研究可以提供对自花授粉物种遗传多样性的洞察。

作文

In the realm of biology, the term autogamy refers to a fascinating reproductive strategy where an organism can fertilize itself. This self-fertilization process is particularly common in certain plants and some species of animals, allowing them to reproduce without the need for a mate. The concept of autogamy is significant because it highlights the adaptability and resilience of life forms in various environments. In situations where mates are scarce or environmental conditions are harsh, the ability to reproduce independently can be a crucial survival mechanism. One of the most well-known examples of autogamy can be found in flowering plants. Many plants have evolved mechanisms that enable them to produce both male and female gametes, facilitating self-pollination. This is particularly advantageous in isolated habitats where pollinators may not be present. For instance, the common garden pea (Pisum sativum) is a classic example of a plant that can undergo autogamy. By self-fertilizing, these plants can ensure their lineage continues even in the absence of other individuals. However, while autogamy offers certain advantages, it also comes with drawbacks. One major concern is the lack of genetic diversity that arises from self-fertilization. When organisms reproduce on their own, they tend to pass on similar genetic material, which can lead to inbreeding depression. This phenomenon can reduce the overall fitness of a population, making it more susceptible to diseases and environmental changes. Therefore, many species that exhibit autogamy also have mechanisms to promote cross-fertilization when possible, ensuring that genetic diversity is maintained. In addition to plants, autogamy is observed in some animal species as well. Certain hermaphroditic organisms, such as earthworms and some types of snails, possess both male and female reproductive organs, allowing them to engage in self-fertilization. This reproductive strategy can be advantageous in environments where finding a mate is challenging. For example, in isolated ponds or during periods of low population density, these organisms can still reproduce effectively through autogamy, ensuring the continuation of their species. The study of autogamy has broader implications beyond individual species. It provides insights into evolutionary processes and the strategies that organisms employ to survive and thrive in fluctuating environments. Understanding how and why certain species have developed the capacity for self-fertilization can inform conservation efforts, especially for endangered species that may be facing habitat loss and declining populations. In conclusion, autogamy is a remarkable biological phenomenon that underscores the complexity of reproduction in the natural world. While it offers immediate benefits in terms of reproductive success, it also poses challenges related to genetic diversity. As we continue to explore the intricacies of life, the study of autogamy will remain a vital area of research, shedding light on the resilience and adaptability of organisms in an ever-changing environment.

在生物学领域，术语autogamy指的是一种迷人的繁殖策略，其中一个生物体可以自我授精。这种自我授精的过程在某些植物和一些动物物种中尤为常见，使它们能够在没有配偶的情况下繁殖。autogamy的概念是重要的，因为它突显了生命形式在各种环境中的适应性和韧性。在配偶稀缺或环境条件严酷的情况下，自我繁殖的能力可能是一种关键的生存机制。 autogamy最著名的例子之一可以在开花植物中找到。许多植物已经进化出能够同时产生雄性和雌性配子的机制，从而促进自我授粉。这在孤立栖息地中尤其有利，因为在这些地方授粉者可能不存在。例如，普通豌豆（Pisum sativum）就是一个经典的可以进行autogamy的植物。通过自我授精，这些植物可以确保它们的后代在没有其他个体的情况下继续生存。 然而，虽然autogamy提供了一些优势，但也伴随着缺点。一个主要的担忧是自我授精所导致的遗传多样性的缺乏。当生物体独自繁殖时，它们往往会传递相似的遗传物质，这可能导致近亲繁殖衰退。这一现象可能降低种群的整体适应性，使其对疾病和环境变化更加脆弱。因此，许多表现出autogamy的物种在可能的情况下也具有促进异交的机制，以确保遗传多样性的维持。 除了植物，某些动物物种中也观察到了autogamy。某些雌雄同体生物，如蚯蚓和某些类型的蜗牛，具备雄性和雌性生殖器官，使它们能够进行自我授精。这种繁殖策略在寻找配偶困难的环境中是有利的。例如，在孤立的池塘中或在人口密度低的时期，这些生物仍然可以通过autogamy有效繁殖，确保其物种的延续。 对autogamy的研究具有超越个别物种的广泛意义。它为我们提供了对进化过程及生物体在不断变化的环境中生存和繁衍所采用策略的洞察。理解某些物种为何发展出自我授精的能力可以为保护工作提供信息，特别是对于面临栖息地丧失和种群下降的濒危物种。 总之，autogamy是一种非凡的生物现象，强调了自然界中繁殖的复杂性。虽然在繁殖成功方面提供了即时利益，但也带来了与遗传多样性相关的挑战。随着我们继续探索生命的复杂性，对autogamy的研究将仍然是一个重要的研究领域，揭示生物体在不断变化的环境中的韧性和适应性。