actinomyces

简明释义

英[ˌæktɪnəʊˈmaɪsiːz]美[ˌæktɪnoˈmaɪsiz]

n. 放线菌

复 数 a c t i n o m y c e s

英英释义

单词用法

同义词

反义词

例句

1.An experiment was conducted to study the variations in microbial biomass carbon (MBC) and numbers of bacteria, fungi and actinomyces of ginseng rhizosphere soil applied ferment bacteria fertilizer.

摘要研究了施用酵素菌肥的栽参土壤人参根际微生物量碳及细菌、真菌和放线菌数量的变化。

2.The results show that man made accelerated erosion decreases the Numbers of bacteria, fungi and actinomyces, among which fungi was affected drastically.

结果表明：人为加速侵蚀主要引起表土层细菌、放线菌、真菌数量减少，其中以真菌下降率最高。

3.An experiment was conducted to study the variations in microbial biomass carbon (MBC) and numbers of bacteria, fungi and actinomyces of ginseng rhizosphere soil applied ferment bacteria fertilizer.

摘要研究了施用酵素菌肥的栽参土壤人参根际微生物量碳及细菌、真菌和放线菌数量的变化。

4.The seasonal variations in the number of bacteria, actinomyces and fungi in the soils and forest litters collected from Mt. Dinghushan and Mt. Jianfengling were studied.

研究海南岛尖峰岭和广东鼎湖山两样地采集的土壤样品及森林凋落物样品中细菌、放线菌和真菌三类微生物数量的季节动态变化。

5.In antibiotic test, the datum showed that the antagonistic Actinomyces extensive distribute in the plant rhizosphere soil, but the strongly antagonistic Actinomyces were few.

拮抗性试验结果表明，放线菌的拮抗菌虽然广泛分布于植物根际土壤中，但具有强烈抑菌作用的拮抗性菌株是非常稀少的。

6.The actinomyces designated as S1 S2 and S3 were isolated and selected from Atrazine contaminated soil, and they were regarded as Atrazine-degrading strains in the test.

本研究以来源于土壤、还原于土壤为指导思想，从长期施用莠去津的土壤中分离、筛选出3株长势良好的放线菌株s1、S2和S3，作为试验用莠去津降解菌。

7.The results showed that 10+3 times of soil dilution is the best soil diluted concentration for Actinomyces isolation.

结果表明：103倍土壤稀释浓度为分离放线菌的最佳土壤稀释浓度；

8.Results:In contrast with other nitrogen sources, Actinomyces naeslundii could be cultured by urea and higher final A value of the bacteria was obtained;

结果与其他口腔中常见氮源物质相比，尿素可以促进内氏放线菌生长，获得更高的A值；

9.The dentist explained that the presence of actinomyces could indicate a potential infection in the gums.

牙医解释说，放线菌的存在可能表明牙龈有潜在感染。

10.The microbiologist studied the role of actinomyces in the human gut microbiome.

微生物学家研究了放线菌在人体肠道微生物组中的作用。

11.In cases of chronic sinusitis, doctors sometimes find an overgrowth of actinomyces in nasal cultures.

在慢性鼻窦炎的病例中，医生有时会在鼻腔培养中发现过量的放线菌。

12.An infection caused by actinomyces can lead to serious complications if not treated promptly.

如果不及时治疗，由放线菌引起的感染可能会导致严重并发症。

13.Research shows that actinomyces is often found in the oral cavity and can contribute to dental plaque formation.

研究表明，放线菌通常存在于口腔中，并可能导致牙菌斑的形成。

作文

The world of microbiology is vast and complex, filled with organisms that play essential roles in various ecosystems. One such group of bacteria is known as actinomyces, which are filamentous, gram-positive bacteria found in soil, water, and the human body. Understanding actinomyces is crucial not only for microbiologists but also for those interested in human health and disease. These bacteria are part of the normal flora in the mouth and gastrointestinal tract, contributing to the breakdown of organic matter and playing a role in maintaining a healthy balance within these environments.Actinomyces species are known for their unique morphological characteristics, resembling fungi due to their filamentous structure. This resemblance has led to their classification within the actinobacteria group, which is known for its high G+C content in DNA. The most well-known species of actinomyces is Actinomyces israelii, which is often associated with human infections. Although these bacteria are typically harmless, they can cause opportunistic infections, particularly in individuals with compromised immune systems.One of the most significant aspects of actinomyces is their ability to form biofilms. Biofilms are communities of microorganisms that adhere to surfaces and are encased in a protective matrix. This characteristic allows actinomyces to thrive in various environments, including dental plaque, where they can contribute to periodontal disease. The presence of actinomyces in dental biofilms highlights the importance of oral hygiene and regular dental check-ups to prevent potential infections and maintain oral health.Research on actinomyces has also revealed their potential benefits. Some species are used in the production of antibiotics, such as streptomycin, which is vital in treating bacterial infections. This dual nature—both beneficial and pathogenic—makes actinomyces a fascinating subject of study within the field of microbiology. Scientists continue to explore the genetic and metabolic pathways of these bacteria to uncover new therapeutic applications and understand their roles in disease.In addition to their medical significance, actinomyces play a crucial role in environmental processes. They are involved in the decomposition of organic materials, contributing to nutrient cycling in ecosystems. Their ability to degrade complex compounds makes them valuable in bioremediation efforts, where they can help clean up contaminated environments by breaking down pollutants.In conclusion, actinomyces are an essential group of bacteria with both beneficial and harmful implications. Their unique characteristics and roles in human health, disease, and environmental processes make them a significant focus of research. Understanding actinomyces not only enhances our knowledge of microbiology but also provides insights into potential therapeutic applications and environmental sustainability. As we continue to explore the complexities of microbial life, the study of actinomyces will undoubtedly remain a critical area of interest for scientists and healthcare professionals alike.

微生物学的世界是广阔而复杂的，充满了在各种生态系统中发挥重要作用的生物体。其中一类细菌被称为放线菌，它们是丝状的、革兰氏阳性细菌，存在于土壤、水和人体内。理解放线菌不仅对微生物学家至关重要，也对那些关注人类健康和疾病的人来说至关重要。这些细菌是口腔和胃肠道的正常菌群的一部分，有助于有机物的分解，并在维持这些环境中的健康平衡方面发挥作用。放线菌以其独特的形态特征而闻名，因其丝状结构而类似真菌。这种相似性使得它们被归类为放线菌组，后者因其DNA中的高G+C含量而闻名。最著名的放线菌物种是以色列放线菌，它通常与人类感染相关。尽管这些细菌通常无害，但它们可以引起机会性感染，特别是在免疫系统受损的个体中。放线菌的一个重要方面是它们形成生物膜的能力。生物膜是微生物群落附着在表面并被保护性基质包裹的社区。这种特性使得放线菌能够在各种环境中繁衍生息，包括牙菌斑，在那里它们可能会导致牙周病。放线菌在牙科生物膜中的存在强调了口腔卫生和定期牙科检查的重要性，以预防潜在感染并维护口腔健康。关于放线菌的研究还揭示了它们的潜在益处。一些物种用于抗生素的生产，例如链霉素，这对治疗细菌感染至关重要。这种双重性质——既有益又有害——使得放线菌成为微生物学研究中的一个迷人主题。科学家们继续探索这些细菌的遗传和代谢途径，以发现新的治疗应用并理解它们在疾病中的作用。除了医学意义外，放线菌在环境过程中也发挥着至关重要的作用。它们参与有机物的分解，为生态系统中的养分循环做出贡献。它们降解复杂化合物的能力使它们在生物修复工作中具有价值，在这些工作中，它们可以通过分解污染物来帮助清理受污染的环境。总之，放线菌是一类具有益处和危害的细菌。它们独特的特征及其在人体健康、疾病和环境过程中的作用，使它们成为研究的一个重要焦点。理解放线菌不仅增强了我们对微生物学的认识，还提供了对潜在治疗应用和环境可持续性的洞察。随着我们继续探索微生物生命的复杂性，放线菌的研究无疑将继续成为科学家和医疗专业人士共同关注的关键领域。