Soil under stress: the importance of soil life and how it is influenced by (micro)plastic pollution
Joos, L.; De Tender, C. (2022). Soil under stress: the importance of soil life and how it is influenced by (micro)plastic pollution. Computational and Structural Biotechnology Journal 20: 1554-1566. https://dx.doi.org/10.1016/j.csbj.2022.03.041
In: Computational and Structural Biotechnology Journal. ELSEVIER SCIENCE BV: Amsterdam. e-ISSN 2001-0370, more
Soil organisms and specifically microorganisms are indispensable to life on Earth. They regulate essential ecosystem functions from carbon sequestration to primary production. These organisms often experience stress when the balance of the soil system is disrupted by agricultural practices and environmental disturbances. A new stressor is plastic, which can be found in soils, in and around soil-dwelling organisms, and close to plants. The presence of plastic can affect soil chemistry, plant growth and the survival of higher-order organisms. Microbial organisms respond sensitively to these changes in their surroundings and will thus be (in)directly affected by plastic. Eventually, this results in a different microbial activity, composition and reduced diversity. Plastic might even serve as a specific habitat for microorganisms, generally referred to as the plastisphere. In this review, we make predictions based on the observed effects of (micro)plastics and the potential impact on the plant-soil-microbiome system. We use prior knowledge of other disturbances (e.g. tillage and pesticides) which have been studied for many years in relation to the soil microbial community. Further research is needed to develop standardized methods to study smaller plastic particles (micro- and nanoplastics) as these play the most dominant role in terrestrial ecosystems.
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