murein

简明释义

英[ˈmjʊəriːn]美[ˈmjʊərɪən]

n. [生化] 胞壁质

英英释义

单词用法

同义词

反义词

例句

1.Archaean cell walls lack murein, and their lipids have ether links rather than ester links.

古细菌的细胞壁缺乏胞壁质，其连接是醚连接而不是酯连接。

2.Archaean cell walls lack murein, and their lipids have ether links rather than ester links.

古细菌的细胞壁缺乏胞壁质，其连接是醚连接而不是酯连接。

3.Researchers are studying how antibiotics target murein to disrupt bacterial growth.

研究人员正在研究抗生素如何靶向murein以干扰细菌生长。

4.Murein is a crucial component of the bacterial cell wall, providing structural support.

murein是细菌细胞壁的重要成分，提供结构支持。

5.The breakdown of murein can lead to the lysis of bacterial cells.

murein的降解可能导致细菌细胞的溶解。

6.Certain enzymes can break down murein, which is a target for new antibacterial drugs.

某些酶可以降解murein，这是新型抗菌药物的靶点。

7.In Gram-negative bacteria, murein is located between the inner and outer membranes.

在革兰氏阴性细菌中，murein位于内膜和外膜之间。

作文

The study of cellular structures and their compositions is a fascinating field that opens up numerous avenues for research and understanding. One of the critical components found in the cell walls of bacteria is a substance known as murein. This complex polymer plays a vital role in maintaining the integrity and shape of bacterial cells. Understanding murein not only helps us comprehend how bacteria function but also sheds light on potential targets for antibiotic development.Murein, also known as peptidoglycan, is a mesh-like structure composed of sugars and amino acids. It forms a rigid layer outside the plasma membrane of bacterial cells, providing both structural support and protection against external forces. The unique composition of murein allows bacteria to withstand osmotic pressure, which is crucial for their survival in various environments.In the world of microbiology, researchers have long been interested in the biosynthesis of murein. The process involves several enzymes that work together to construct this essential polymer. By studying these enzymes, scientists can gain insights into bacterial growth and division. Disrupting the synthesis of murein can lead to bacterial cell lysis, making it a promising target for new antibiotics. This aspect of murein is particularly important given the rise of antibiotic-resistant bacteria, which poses a significant threat to public health worldwide.Moreover, the structure of murein varies among different species of bacteria, leading to diverse shapes and sizes of bacterial cells. For instance, Gram-positive bacteria have a thick layer of murein, while Gram-negative bacteria possess a thinner layer, surrounded by an outer membrane. This difference not only affects the physical characteristics of the bacteria but also their susceptibility to antibiotics. Understanding these variations is crucial for developing effective treatment strategies.In addition to its structural role, murein also participates in signaling processes within bacterial cells. Recent studies have shown that fragments of murein can act as signals that trigger immune responses in host organisms. This interaction between bacteria and host defenses highlights the importance of murein beyond its structural significance. It underscores the intricate relationship between pathogens and their hosts, revealing how bacteria can manipulate their environment to survive and thrive.In conclusion, murein is a fundamental component of bacterial cell walls that plays a crucial role in maintaining cell structure and integrity. Its unique properties and functions make it an essential subject of study in microbiology. As researchers continue to explore the complexities of murein, we gain valuable insights that could lead to innovative solutions in the fight against bacterial infections. Understanding this polymer is not only vital for appreciating the biology of bacteria but also for addressing the challenges posed by antibiotic resistance in modern medicine.

细胞结构及其组成的研究是一个迷人的领域，开辟了许多研究和理解的途径。在细菌细胞壁中发现的一个关键成分是一种称为murein的物质。这个复杂的聚合物在维持细菌细胞的完整性和形状方面发挥着至关重要的作用。理解murein不仅有助于我们理解细菌如何运作，还揭示了抗生素开发的潜在靶点。Murein，也称为肽聚糖，是由糖和氨基酸组成的网状结构。它形成了细菌细胞质膜外的刚性层，提供了结构支持和对外部力量的保护。murein的独特组成使细菌能够承受渗透压，这对它们在各种环境中的生存至关重要。在微生物学界，研究人员长期以来对murein的生物合成产生了浓厚的兴趣。该过程涉及几个酶共同工作以构建这一重要聚合物。通过研究这些酶，科学家可以深入了解细菌的生长和分裂。破坏murein的合成可能导致细菌细胞溶解，使其成为新型抗生素的有希望的靶点。在抗生素耐药性细菌日益增加的背景下，这一方面尤为重要，这对全球公共健康构成了重大威胁。此外，murein的结构在不同种类的细菌之间有所不同，导致细菌细胞的形状和大小各异。例如，革兰氏阳性细菌具有厚厚的murein层，而革兰氏阴性细菌则具有较薄的层，周围包围着外膜。这一差异不仅影响细菌的物理特性，还影响它们对抗生素的敏感性。理解这些变化对于制定有效的治疗策略至关重要。除了其结构作用外，murein还参与细菌细胞内的信号传递过程。最近的研究表明，murein的片段可以作为信号触发宿主生物的免疫反应。这种细菌与宿主防御之间的相互作用突显了murein超越其结构重要性的意义。它强调了病原体与宿主之间错综复杂的关系，揭示了细菌如何操控其环境以生存和繁衍。总之，murein是细菌细胞壁的基本组成部分，在维持细胞结构和完整性方面发挥着关键作用。其独特的性质和功能使其成为微生物学研究的重要课题。随着研究人员继续探索murein的复杂性，我们获得了宝贵的见解，这可能导致在抗击细菌感染方面的创新解决方案。理解这种聚合物不仅对欣赏细菌的生物学至关重要，而且对应对现代医学中抗生素耐药性带来的挑战至关重要。