聚乙烯微塑料和添加剂对土壤循环的差异影响:深入研究微生物相互作用和转化机制
Zhidong Zhou1, Jianfeng Hua1, Jianhui Xue2
1Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; Nanjing Botanical Garden Mem. Sun Yat-Sen, Nanjing 210014, China.
The Science of the total environment
|June 8, 2024
概括
塑料添加剂和微塑料通过影响微生物群落和功能基因改变土壤循环. 与微塑料和树脂相比,添加剂对降解和微生物固定不起作用.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 微生物学 微生物学
背景情况:
- 微塑料污染越来越令人担忧,其对土壤营养循环,特别是的影响尚不清楚.
- 土壤微生物群落对于营养循环至关重要,但它们对塑料污染物的反应尚未完全阐明.
研究的目的:
- 研究聚乙烯微塑料,聚乙烯树脂和塑料添加剂对土壤含量,物理化学性质和循环的影响.
- 分析对循环功能基因,微生物组成和转化速率的影响.
主要方法:
- 量化土壤中含量和物理化学性质.
- 使用分子技术评估循环功能基因和微生物社区组成.
- 测量了总转化率 (氨化,化,固定化).
主要成果:
- 所有修正案都增加了总,但减少了溶解的总;添加剂显示最低的无机.
- 聚乙烯微塑料和添加剂增加了溶解的有机,而树脂减少了它并增加了微生物生物质.
- 修改类型显著影响了微生物社区结构,功能基因和转化率,添加剂更具抑制性.
结论:
- 与微塑料和树脂相比,塑料添加剂通过抑制微生物固定和转化速率,对循环产生负面影响.
- 土壤的物理化学特性和微生物社区结构是塑料污染物对循环的影响的关键因素.
相关概念视频
02:11The Roles of Bacteria and Fungi in Plant Nutrition
35.2K
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.
35.2K
00:46Bioremediation
18.2K
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.
18.2K