持续的作物驱动土壤微生物群体的组装过程,以改变关键类型,造成挑战
Fangfang Zhou1,2, Yihong Pan3, Jun Zhan4
1College of Resources and Environmental Science, Yunann Agricultural University, Kuming, China.
BMC microbiology
|December 22, 2025
概括
持续的单一栽培破坏了土壤微生物群落,特别是细菌,导致作物产量损失. 15年后,由于微生物组合的变化和有益微生物的增加,土壤健康恢复.
科学领域:
- 土壤科学 土壤科学
- 微生物学 微生物学
- 农业学是一种农业学.
背景情况:
- 健康的土壤对生态系统服务和粮食安全至关重要,土壤微生物群表明土壤健康.
- 长期的连续单一种植对土壤微生物多样性和功能产生负面影响,威胁到可持续农业.
研究的目的:
- 研究烟草种植中的持续作物挑战背后的微生物机制.
- 分析不同连续作物持续时间对树根球微生物群体组合,组成和关键类型的影响.
主要方法:
- 烟草在连续种植过程中种植了1,5,10年和15年 (CR,CC5,CC10,CC15).
- 分析了树枝球微生物社区的组装过程,组成,关键类型,以及它们与连续作物障碍的关系.
主要成果:
- 5年后 (CC5),细菌群体结构显著不同,由确定性组合驱动,微生物相互作用减少,病原体增加.
- 细菌群体的组合转移到随机过程10年 (CC10) 和15年 (CC15),微生物网络复杂性和有益的微生物恢复.
- CC15处理显示恢复了有益的微生物和减少了病原体,接近1年对照 (CR) 的土壤微生物群体.
结论:
- 早期的连续作物 (CC5) 破坏了细菌社区的聚集,降低了网络的稳定性,增加了有害微生物,加剧了作物产量障碍.
- 扩展连续作物 (CC15) 将组装转移到随机过程中,增强微生物网络复杂性和有益的微生物,从而减轻连续作物挑战.
更多相关视频
17:39A Lipid Extraction and Analysis Method for Characterizing Soil Microbes in Experiments with Many Samples
Published on: July 16, 2017
20.9K
13:38Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
Published on: May 10, 2013
31.3K
相关概念视频
The Soil Ecosystem
24.3K
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:
24.3K
The Roles of Bacteria and Fungi in Plant Nutrition
46.5K
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.
46.5K
Environmental Applications of Microorganisms
901
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...
901
Bioremediation
22.0K
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.
22.0K
Ecological Disturbance
20.6K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
20.6K
Microorganisms in Agriculture and Food industry
1.2K
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
1.2K
