haemocyte

简明释义

英[ˈhiːmə(ʊ)saɪt]美[ˈhemosaɪt]

n. 血细胞

英英释义

单词用法

同义词

反义词

例句

1.The results showed that PPO mRNA was expressed in integument, haemocyte and midgut of Helicoverpa armigera .

结果表明，PPO基因在这三种组织中均有表达。

2.The results showed that PPO mRNA was expressed in integument, haemocyte and midgut of Helicoverpa armigera .

结果表明，PPO基因在这三种组织中均有表达。

3.The study focused on the role of haemocytes in the immune response of mollusks.

这项研究集中于血细胞在软体动物免疫反应中的作用。

4.Researchers observed that the number of haemocytes increased significantly after infection.

研究人员观察到，在感染后，血细胞的数量显著增加。

5.In insects, haemocytes are crucial for encapsulating foreign bodies.

在昆虫中，血细胞对包裹外来物体至关重要。

6.The experiment aimed to isolate different types of haemocytes from the blood of crabs.

实验旨在从螃蟹的血液中分离不同类型的血细胞。

7.A decrease in haemocyte count can indicate a health issue in aquatic animals.

血细胞数量的减少可能表明水生动物存在健康问题。

作文

In the fascinating world of biology, the study of cells plays a crucial role in understanding the mechanisms of life. One type of cell that has garnered significant interest among scientists is the haemocyte (血细胞). These specialized cells are primarily found in invertebrates and serve essential functions in their immune response and overall physiology. The purpose of this essay is to delve deeper into the characteristics, functions, and significance of haemocytes (血细胞) in various organisms. Firstly, we must understand what haemocytes (血细胞) are. In simple terms, they are the blood cells of invertebrates, akin to the red and white blood cells found in vertebrates. Haemocytes (血细胞) are responsible for several vital functions, including phagocytosis, wound healing, and the transport of nutrients. Unlike vertebrate blood cells, which are produced in bone marrow, haemocytes (血细胞) are generated in the hematopoietic organs of invertebrates, such as the coelomic cavity or specialized tissues. One of the most remarkable features of haemocytes (血细胞) is their ability to respond to pathogens. When an invertebrate is injured or infected, haemocytes (血细胞) rapidly migrate to the site of injury or infection. They utilize a process known as phagocytosis, where they engulf and digest foreign particles, bacteria, or dead cells. This immune response is crucial for the survival of invertebrates, as they lack a complex adaptive immune system like that of vertebrates. Moreover, haemocytes (血细胞) also play a pivotal role in wound healing. When an organism is injured, haemocytes (血细胞) aggregate at the site of damage, forming a protective barrier. They release various signaling molecules that promote tissue regeneration and repair. This function highlights the importance of haemocytes (血细胞) not only in defense against pathogens but also in maintaining the integrity of the organism’s body. In addition to their immune functions, haemocytes (血细胞) are involved in the transport of nutrients and waste products. They can carry essential substances, such as oxygen and hormones, throughout the invertebrate's body, ensuring that all cells receive the necessary nutrients for survival. This transport system, while not as complex as the circulatory systems in vertebrates, is nonetheless vital for the health and functionality of invertebrate organisms. The study of haemocytes (血细胞) has significant implications for various fields, including medicine and environmental science. For instance, understanding how these cells function can provide insights into the immune systems of higher organisms, potentially leading to advancements in immunology and therapeutic strategies. Additionally, monitoring the health of haemocytes (血细胞) in aquatic invertebrates can serve as an indicator of environmental stressors, helping scientists assess the health of ecosystems. In conclusion, haemocytes (血细胞) are a vital component of invertebrate biology, playing crucial roles in immune response, wound healing, and nutrient transport. Their unique characteristics and functions highlight the complexity of life at the cellular level, reminding us that even the simplest organisms have intricate systems that allow them to thrive in their environments. As research continues to uncover the mysteries of haemocytes (血细胞), we gain a deeper appreciation for the diverse strategies life employs to survive and adapt in an ever-changing world.

在生物学的迷人世界中，细胞的研究在理解生命机制方面起着至关重要的作用。科学家们特别关注的一种细胞是haemocyte（血细胞）。这些特殊的细胞主要存在于无脊椎动物中，在它们的免疫反应和整体生理中发挥着重要作用。本文旨在深入探讨haemocytes（血细胞）在各种生物中的特征、功能和重要性。 首先，我们必须了解haemocytes（血细胞）是什么。简单来说，它们是无脊椎动物的血细胞，类似于脊椎动物中的红细胞和白细胞。Haemocytes（血细胞）负责几项重要功能，包括吞噬作用、伤口愈合和营养运输。与在骨髓中产生的脊椎动物血细胞不同，haemocytes（血细胞）是在无脊椎动物的造血器官中生成的，例如体腔或特定组织。 Haemocytes（血细胞）最显著的特征之一是它们对病原体的反应能力。当无脊椎动物受伤或感染时，haemocytes（血细胞）会迅速迁移到伤口或感染部位。它们利用一种称为吞噬作用的过程，吞噬和消化外来颗粒、细菌或死细胞。这种免疫反应对于无脊椎动物的生存至关重要，因为它们缺乏像脊椎动物那样复杂的适应性免疫系统。 此外，haemocytes（血细胞）在伤口愈合中也发挥着关键作用。当生物体受伤时，haemocytes（血细胞）会在损伤部位聚集，形成保护屏障。它们释放各种信号分子，促进组织再生和修复。这一功能突显了haemocytes（血细胞）在抵御病原体和维持生物体完整性方面的重要性。 除了免疫功能外，haemocytes（血细胞）还参与营养物质和废物的运输。它们可以在无脊椎动物的身体中运输氧气和激素等必需物质，确保所有细胞获得生存所需的营养。这种运输系统虽然不如脊椎动物的循环系统复杂，但对无脊椎生物的健康和功能仍然至关重要。 对haemocytes（血细胞）的研究对医学和环境科学等多个领域具有重要意义。例如，了解这些细胞的功能可以为高等生物的免疫系统提供见解，从而可能导致免疫学和治疗策略的进步。此外，监测水生无脊椎动物中haemocytes（血细胞）的健康状况可以作为环境压力的指示，有助于科学家评估生态系统的健康。 总之，haemocytes（血细胞）是无脊椎动物生物学的重要组成部分，在免疫反应、伤口愈合和营养运输中发挥着重要作用。它们独特的特征和功能突显了细胞水平生命的复杂性，提醒我们即使是最简单的生物也有复杂的系统，使它们能够在环境中生存。随着研究继续揭示haemocytes（血细胞）的奥秘，我们对生命在不断变化的世界中生存和适应所采用的多样化策略的欣赏也在加深。