森林土壤病毒对细菌群体继承的影响以及对土壤碳封存的影响
Cong Liu1, Bingchuan Ni2, Xinlei Wang1
1Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, Center for Global Change and Ecological Forecasting, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restorations, Shanghai 200241, China.
The Science of the total environment
|June 11, 2023
概括
土壤病毒通过掠夺r-战略家来控制细菌群落,影响社区继承和碳封存. 体诱导也影响细菌动力学,揭示病毒.
科学领域:
- 土壤微生物学 土壤微生物学
- 病毒学 病毒学
- 微生物生态学 微生物生态学
背景情况:
- 越来越多地承认土壤病毒的生态作用,但它们对微生物社区动态的确切影响仍然不清楚.
- 了解细菌多样性,结构和继承的病毒调节对于土壤生态系统的功能至关重要.
研究的目的:
- 研究土壤病毒如何调节细菌社区的组成,结构和继承.
- 阐明土壤生态系统中病毒上下控制背后的机制.
主要方法:
- 化实验涉及控制混合不同比例的土壤病毒和细菌.
- 病毒和细菌丰度的监测,以及细菌群体组成的分析.
- 用mitomycin C进行治疗以诱导prophage活动并评估其影响.
主要成果:
- 病毒掠食主要针对r-战略细菌系,推动社区的继承.
- 病毒溶解显著增加了不溶性颗粒有机物生产,这表明它在碳封存中发挥了作用.
- 体诱导改变了病毒与细菌的比率,并突出了对溶性-性转换敏感的特定细菌群体 (例如,Burkholderiaceae).
- 土壤病毒促进了同质选择,影响了细菌社区的组合.
结论:
- 土壤病毒对细菌群体施加了显著的自上而下的控制.
- 病毒掠食和传染诱导是调节细菌社区继承和土壤碳动态的关键机制.
- 病毒在塑造细菌社区组合方面发挥着至关重要的作用.
相关概念视频
Ecological Succession
17.3K
Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
17.3K
The Roles of Bacteria and Fungi in Plant Nutrition
36.3K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
36.3K
The Soil Ecosystem
20.7K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
20.7K
Environmental Applications of Microorganisms
77
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
77
Bioremediation
19.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
19.2K


