archaebacteria

简明释义

英[/ˌɑr.keɪ.bækˈtɪr.i.ə/]美[/ˌɑr.keɪ.bækˈtɪr.i.ə/]

n. 原始细菌；古细菌类

英英释义

Archaebacteria are a group of single-celled microorganisms that are similar to bacteria but genetically distinct, often found in extreme environments such as hot springs and salt lakes.

古细菌是一类单细胞微生物，虽然与细菌相似，但在遗传上有明显区别，通常生活在极端环境中，如热泉和盐湖。

单词用法

同义词

archaea

古菌

Archaea are known for their ability to survive in extreme environments.

古菌因其在极端环境中生存的能力而闻名。

extremophiles

极端微生物

Extremophiles can be found in hot springs, deep-sea vents, and other harsh habitats.

极端微生物可以在温泉、深海热泉和其他恶劣栖息地中找到。

反义词

eubacteria

真细菌

Eubacteria are more commonly found in various environments compared to archaebacteria.

与古细菌相比，真细菌在各种环境中更常见。

multicellular organisms

多细胞生物

Multicellular organisms, such as plants and animals, have complex structures unlike archaebacteria.

多细胞生物，如植物和动物，具有复杂的结构，与古细菌不同。

例句

1.But in recent years, great achievements have been made to resolve such a problem due to the discovery accumulating researches of archaebacteria.

但近年来随着原细菌的发现和广泛深入的研究，使这一问题的解决向前迈进了一大步。

2.Bacteria are divided into eubacteria and archaebacteria.

细菌分为真细菌和古细菌两类。

3.But in recent years, great achievements have been made to resolve such a problem due to the discovery accumulating researches of archaebacteria.

但近年来随着原细菌的发现和广泛深入的研究，使这一问题的解决向前迈进了一大步。

4.Some scientists believe that archaebacteria 古菌 may hold keys to understanding extraterrestrial life.

一些科学家认为，archaebacteria 古菌可能是理解外星生命的关键。

5.Researchers are exploring the potential applications of archaebacteria 古菌 in biotechnology.

研究人员正在探索archaebacteria 古菌在生物技术中的潜在应用。

6.The study of archaebacteria 古菌 has revealed important insights into the origins of life on Earth.

对archaebacteria 古菌的研究揭示了地球上生命起源的重要见解。

7.Some archaebacteria 古菌 can survive in extreme environments, such as hot springs and salt lakes.

一些archaebacteria 古菌能够在极端环境中生存，如热泉和盐湖。

8.The unique metabolic pathways of archaebacteria 古菌 make them valuable for studying evolutionary biology.

由于其独特的代谢途径，archaebacteria 古菌对研究进化生物学具有重要价值。

作文

Archaebacteria, also known as archaea, are a group of microorganisms that are distinct from bacteria and eukaryotes. They are one of the oldest forms of life on Earth, believed to have existed for over 3.5 billion years. Unlike typical bacteria, which thrive in a variety of environments, archaebacteria 古细菌 often inhabit extreme conditions such as hot springs, salt lakes, and deep-sea vents. This unique ability to survive in harsh environments makes them a subject of great interest in scientific research.One of the most fascinating aspects of archaebacteria 古细菌 is their cellular structure. While they share some similarities with bacteria, such as being unicellular and lacking a nucleus, their cell membranes are fundamentally different. The membranes of archaebacteria 古细菌 are composed of unique lipids that allow them to withstand extreme temperatures and acidic conditions. This adaptation has led scientists to explore the potential of archaebacteria 古细菌 in biotechnological applications, such as biofuels and pharmaceuticals.Furthermore, archaebacteria 古细菌 play a crucial role in various ecological processes. For instance, some species are methanogens, which produce methane gas as a byproduct of their metabolism. Methane is a significant greenhouse gas, and understanding the role of archaebacteria 古细菌 in methane production is vital for addressing climate change. Additionally, these microorganisms contribute to nutrient cycling in ecosystems, particularly in extreme environments where other life forms struggle to survive.Research on archaebacteria 古细菌 has also expanded our understanding of the tree of life. Traditionally, organisms were classified into two domains: prokaryotes (bacteria) and eukaryotes (organisms with complex cells). However, the discovery of archaebacteria 古细菌 led to the establishment of a third domain, highlighting the evolutionary significance of these organisms. This classification has profound implications for our understanding of evolution and the origins of life on Earth.In addition to their ecological and evolutionary importance, archaebacteria 古细菌 are also of great interest in the field of astrobiology. Scientists speculate that if life exists on other planets, it may resemble archaebacteria 古细菌 due to their resilience in extreme environments. This possibility drives research into the potential for life beyond Earth and the conditions that might support it.In conclusion, archaebacteria 古细菌 are a remarkable group of microorganisms that challenge our understanding of life. Their unique adaptations, ecological roles, and evolutionary significance make them a fascinating subject for ongoing research. As we continue to explore the world of archaebacteria 古细菌, we may uncover new insights that not only enhance our knowledge of biology but also inform our efforts to address global challenges such as climate change and the search for extraterrestrial life.

古细菌，也被称为古生菌，是一类与细菌和真核生物截然不同的微生物。它们是地球上最古老的生命形式之一，据信已经存在超过35亿年。与典型的细菌不同，古细菌通常栖息在极端环境中，如热泉、盐湖和深海热泉。这种在恶劣环境中生存的独特能力使它们成为科学研究的热门对象。古细菌最迷人的方面之一是它们的细胞结构。尽管它们与细菌有一些相似之处，例如单细胞且缺乏细胞核，但它们的细胞膜却有根本性的不同。古细菌的细胞膜由独特的脂质组成，使它们能够承受极端温度和酸性条件。这种适应能力促使科学家探索古细菌在生物燃料和药物等生物技术应用中的潜力。此外，古细菌在各种生态过程中也发挥着至关重要的作用。例如，一些物种是产甲烷菌，它们在代谢过程中产生甲烷气体作为副产品。甲烷是一种重要的温室气体，了解古细菌在甲烷生产中的作用对于应对气候变化至关重要。此外，这些微生物在生态系统中的营养循环中也起着重要作用，尤其是在其他生命形式难以生存的极端环境中。对古细菌的研究还扩展了我们对生命之树的理解。传统上，生物被分为两大领域：原核生物（细菌）和真核生物（具有复杂细胞的生物）。然而，古细菌的发现导致建立了第三个领域，突显了这些生物的进化重要性。这一分类对我们理解进化和地球上生命起源具有深远的影响。除了生态和进化的重要性外，古细菌在天体生物学领域也引起了极大的兴趣。科学家推测，如果其他星球上存在生命，它可能会类似于古细菌，因为它们在极端环境中的韧性。这一可能性推动了对超出地球的生命及其支持条件的研究。总之，古细菌是一类引人注目的微生物，它们挑战了我们对生命的理解。它们独特的适应性、生态角色和进化意义使它们成为持续研究的迷人主题。随着我们继续探索古细菌的世界，我们可能会发现新的见解，不仅增强我们对生物学的理解，还为我们应对气候变化和寻找外星生命等全球挑战提供信息。