鸟类肺部微生物组及其潜在的致病成分的遗传学和生态驱动因素
Paris S Salazar-Hamm1, Chauncey R Gadek2,3,4, Michael A Mann5
1Department of Biology, University of New Mexico, Albuquerque, NM, USA. psh102@unm.edu.
Communications biology
|April 19, 2025
概括
鸟类肺部真菌群落是由环境和宿主因素塑造的. 迁徙鸟类可能会在全球传播致病真菌,造成潜在的健康风险.
科学领域:
- 比较基因组学和微生物生态学.
- 鸟类生物学和免疫学
- 菌生物多样性和演变
背景情况:
- 脊椎动物的肺部拥有多样化的微生物群落,但构成和健康影响的驱动因素仍然不太清楚.
- 肺部的真菌群落 (mycobiomes) 尚未得到充分研究,这阻碍了对共生生物,病原体和环境子的识别.
- 了解肺部微生物组对于识别新出现的真菌病至关重要.
研究的目的:
- 为了描述各种鸟类物种的鸟类肺部菌群.
- 研究环境的相对影响,宿主类型和功能特征对真菌社区组装的相对影响.
- 评估鸟类在传播潜在致病菌的作用.
主要方法:
- 对来自32种鸟类的195个肺样本应用了元编码和培养技术.
- 使用不同的序列类型 (zOTU) 识别了真菌类型.
- 使用统计分析来确定塑造社区组成的因素.
主要成果:
- 确定了526种真菌种群 (zOTU),包括许多机会性病原体,主要来自Ascomycota,Basidiomycota和Mucoromycota.
- 检测到大量的酵母 (例如,马拉塞西亚,萨卡罗米塞斯) 和丝状真菌 (例如,阿斯伯吉勒斯,虫菌).
- 肺部菌生物组受到环境暴露,宿主身份,特征和家族遗传关系的显著影响.
结论:
- 鸟类肺部菌生体是由环境因素和宿主特定特征的组合形成的.
- 迁徙鸟类作为机会性真菌病原体的潜在远距离传播载体.
- 这项研究突出了鸟类肺部菌群的生态和流行病学意义.
相关概念视频
01:28Pulmonary Tuberculosis II
195
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
195
01:29Pulmonary Tuberculosis I
205
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
205
01:30Pneumonia I: Introduction
184
Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
184