高污染负荷改变了淡水环境中的氧气动态、生态位和致病性变化

IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Journal of hazardous materials advances Pub Date : 2024-03-28 DOI:10.1016/j.hazadv.2024.100425
Nuraddeen Bello Ahmad , Mohammed Sani Jaafaru , Zaharaddeen Isa , Yusuf Abdulhamid , Rahanatu Adamu Kakudi , Adamu Yunusa Ugya , Kamel Meguellati
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引用次数: 0

摘要

本研究全面回顾了淡水微生物群落在应对高污染负荷引起的压力时的生态位和致病性转变。该研究通过深入探讨污染物负荷的增加如何影响淡水的稳定性,对氧气水平的变化如何影响水生生物群的生存提供了独特的理解。综述表明,高污染负荷会改变淡水资源的平衡,如有机物、溶解气体、透光率和必需营养物质。这导致氧气动态变化,淡水环境中的微生物群落和生态位也随物种变化而变化。这种氧动态变化还导致淡水微生物基因组的改变,导致抗生素抗性基因的产生,从而增加了淡水微生物的致病性。所产生的氧动态降低了淡水环境的自然防御策略,从而提高了病原体侵袭相应宿主的效率。对淡水外毒素产生和与微生物相互作用的机制进行详细研究,将有助于深入了解外毒素影响下的生态位变化。淡水微生物致病性变化的影响对环境和医学都具有重要意义。这是因为致病性的变化不仅会对水生生物造成危害,而且会抵制处理不当的饮用水。如果持续使用这种水,可能会影响健康和生活质量。对特定污染物如何导致淡水微生物群的生态位和致病性变化进行广泛研究,将有助于详细了解污染对淡水环境稳定性的影响。
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High pollution loads engineer oxygen dynamics, ecological niches, and pathogenicity shifts in freshwater environments

The current study comprehensively reviews the ecological niche and pathogenicity shift in the freshwater microbial community in response to the stress induced by a high pollution load. The study provides a unique understanding of how a change in oxygen level tends to affect the survival of aquatic biota by delving into how an increase in pollutant load affects freshwater stability. The review indicated that high pollution loads alter the balance of freshwater resources such as organic matter, dissolved gases, light penetration, and essential nutrients. This causes oxygen dynamics and a species-dependent change in the community and niche of microorganisms in freshwater environments. This oxygen dynamics also causes the alteration of the genome of freshwater microorganisms, leading to the development of antibiotic resistance genes and thereby increasing the pathogenicity of freshwater microorganisms. The oxygen dynamic created lowers the natural defence strategies of the freshwater environment, thereby increasing the efficacy of the pathogens to infest the respective host. A detailed study of the mechanisms involved in freshwater exotoxins production and interaction with microorganisms will give an important insight into the niche shift in response to the effect of the exotoxin. The effect of the change in the pathogenicity of freshwater microorganisms is of importance to both environmental and medical interests. This is because the change in pathogenicity is not only detrimental to aquatic organisms but also resists improperly treated drinking water. Such water could retrogress wellness and quality of life when used continuously. An extensive study on how specific pollutants cause a shift in the niche and pathogenicity of freshwater microbiota will provide a detailed understanding of the impact of pollution on the stability of freshwater environment.

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来源期刊
Journal of hazardous materials advances
Journal of hazardous materials advances Environmental Engineering
CiteScore
4.80
自引率
0.00%
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0
审稿时长
50 days
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