gametocyte

简明释义

英[ɡəˈmiːtəʊsaɪt]美[ɡəˈmiːtəˌsaɪt]

n. 配子体；[生物] 配子母细胞

英英释义

单词用法

同义词

反义词

例句

1.Three other RBC's in this smear are also infected with a ring trophozoite. At the far left is a gametocyte of this species.

涂片上另外三个红细胞也被环状滋养体感染，在左边远处为配子体。

2.Objective To investigate the effect of tryptophan metabolite in the salivary glands of anopheles stephensi on malaria gametocyte activating factor.

目的探讨色氨酸代谢产物对斯氏按蚊唾液腺抽提物中疟原虫配子体激活因子的影响。

3.Objective To investigate the effect of tryptophan metabolite in the salivary glands of anopheles stephensi on malaria gametocyte activating factor.

目的探讨色氨酸代谢产物对斯氏按蚊唾液腺抽提物中疟原虫配子体激活因子的影响。

4.In certain species, the gametocyte stage is critical for transmission to the mosquito vector.

在某些物种中，配子体阶段对向蚊子媒介的传播至关重要。

5.Researchers are studying how environmental factors affect the development of the gametocyte in malaria parasites.

研究人员正在研究环境因素如何影响疟疾寄生虫中配子体的发展。

6.A blood smear can be used to identify the presence of gametocytes in infected individuals.

血涂片可以用来识别感染个体中配子体的存在。

7.The life cycle of Plasmodium involves the transformation of a gametocyte into a gamete during sexual reproduction.

疟原虫的生命周期涉及到配子体在性繁殖过程中转变为配子。

8.The differentiation of a merozoite into a gametocyte is a key step in the malaria lifecycle.

裂殖体分化为配子体是疟疾生命周期中的关键步骤。

作文

In the study of biology, particularly in the field of genetics and reproduction, the term gametocyte refers to a specialized cell that undergoes division to form gametes. Gametes are the reproductive cells that unite during fertilization to form a new organism. In humans and many other organisms, there are two types of gametes: sperm and eggs. The development of gametocytes is crucial for sexual reproduction as they ensure the continuation of genetic material from one generation to the next. Understanding the process of gametogenesis, which involves the transformation of gametocytes into functional gametes, is essential for comprehending how traits are inherited and how genetic diversity is achieved within populations.The formation of gametocytes occurs through a series of stages. In animals, this begins with the differentiation of germ cells, which are set aside early in embryonic development. These germ cells will eventually develop into gametocytes. In males, the process leads to the formation of spermatocytes, while in females, it results in the development of oocytes. Each of these gametocytes undergoes meiosis, a type of cell division that reduces the chromosome number by half, resulting in haploid cells that can combine during fertilization.Meiosis is a complex process that consists of two rounds of division: meiosis I and meiosis II. During meiosis I, homologous chromosomes pair up and exchange genetic material through a process known as crossing over. This exchange increases genetic variability among offspring. After meiosis I, the resulting gametocytes are haploid, containing only one set of chromosomes. Meiosis II then separates the sister chromatids, leading to the formation of four unique gametes from each original gametocyte.In plants, the concept of gametocyte is also relevant but manifests differently. In the plant life cycle, the alternation of generations includes both a diploid sporophyte stage and a haploid gametophyte stage. The gametophyte produces gametocytes that develop into gametes. In flowering plants, the male gametophyte is represented by pollen grains, while the female gametophyte develops within the ovule.The study of gametocytes extends beyond basic biology; it has significant implications in fields such as medicine and agriculture. For instance, understanding the development of gametocytes in parasites like Plasmodium, which causes malaria, can lead to better treatments and preventive measures. Research into the mechanisms of gametocyte formation and maturation can provide insights into how these parasites evade the immune system and reproduce.Moreover, advancements in reproductive technologies, such as in vitro fertilization (IVF), rely heavily on the manipulation of gametocytes. By understanding how to effectively produce and utilize gametocytes, scientists and medical professionals can assist couples facing infertility issues. This underscores the importance of studying gametocytes not only from a biological perspective but also for its practical applications in health and society.In conclusion, gametocytes play a vital role in the reproductive processes of various organisms. Their development and function are fundamental to the continuity of species and the inheritance of traits. As research continues to evolve, our understanding of gametocytes will undoubtedly deepen, paving the way for new discoveries and innovations in biology, medicine, and agriculture.

在生物学研究中，特别是在遗传学和生殖领域，术语gametocyte指的是一种特殊的细胞，它通过分裂形成配子。配子是生殖细胞，在受精时结合形成新的有机体。在人类和许多其他生物中，有两种类型的配子：精子和卵子。gametocytes的发育对性生殖至关重要，因为它们确保了遗传物质从一代传递到下一代。理解配子发生的过程，即gametocytes转变为功能性配子的过程，对于理解特征如何遗传以及如何在群体中实现遗传多样性至关重要。gametocytes的形成通过一系列阶段进行。在动物中，这一过程始于生殖细胞的分化，生殖细胞在胚胎发育早期被分离出来。这些生殖细胞最终将发育成gametocytes。在雄性中，该过程导致精原细胞的形成，而在雌性中，则导致卵母细胞的发展。每个gametocyte都经历减数分裂，这是一种将染色体数量减少一半的细胞分裂类型，从而产生能够在受精时结合的单倍体细胞。减数分裂是一个复杂的过程，包括两轮分裂：减数分裂I和减数分裂II。在减数分裂I期间，同源染色体配对并通过交叉互换遗传物质。这种交换增加了后代之间的遗传变异性。在减数分裂I之后，结果的gametocytes是单倍体，只有一套染色体。接着，减数分裂II分开姐妹染色单体，导致每个原始gametocyte形成四个独特的配子。在植物中，gametocyte的概念也很相关，但表现形式不同。在植物生活周期中，世代交替包括二倍体孢子体阶段和单倍体配子体阶段。配子体产生gametocytes，这些细胞发展成配子。在开花植物中，雄性配子体由花粉粒表示，而雌性配子体则在胚珠内发育。对gametocytes的研究不仅限于基础生物学；它在医学和农业等领域具有重要意义。例如，了解寄生虫如疟原虫中gametocytes的发展可以导致更好的治疗和预防措施。研究gametocyte的形成和成熟机制可以提供关于这些寄生虫如何逃避免疫系统和繁殖的见解。此外，生殖技术的进步，如体外受精（IVF），在很大程度上依赖于对gametocytes的操控。通过了解如何有效地生产和利用gametocytes，科学家和医疗专业人员可以帮助面临不孕症问题的夫妇。这强调了从生物学角度研究gametocytes的重要性，以及其在健康和社会中的实际应用。总之，gametocytes在各种生物的生殖过程中发挥着至关重要的作用。它们的发展和功能是物种延续和特征遗传的基础。随着研究的不断发展，我们对gametocytes的理解无疑将加深，为生物学、医学和农业的新发现和创新铺平道路。