Selenium Nanoparticles as an Innovative Selenium Fertilizer Exert Less Disturbance to Soil Microorganisms
| Autor: | Chao Song, Wen-Yu Qi, Jun Liu, Hui Chen, Qiang Li, Shu-Guang Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Microbiology (medical)
Chemistry Microorganism environmental persistent free radicals Trace element chemistry.chemical_element soil microorganism Bacillus sp engineering.material complex mixtures Microbiology QR1-502 selenium fertilizer Microbial population biology Toxic state Environmental chemistry selenium nanoparticles engineering Fertilizer selenite Selenium Original Research |
| Zdroj: | Frontiers in Microbiology Frontiers in Microbiology, Vol 12 (2021) |
| ISSN: | 1664-302X |
| Popis: | Selenium (Se) is an essential trace element in the human body. Se-enriched agricultural products, obtained by applying Se fertilizer, are important sources of Se supplement. However, Se fertilizer may cause a series of environmental problems. This study investigated the transformation of exogenous selenium nanoparticles (SeNPs) and selenite (SeO32–) in soil and explored their effects on soil microbial community and typical microorganisms. SeNPs exhibited a slow-release effect in soil, which promoted the growth of soil microorganisms and enriched soil probiotics. SeO32– was converted to a stable and low toxic state in soil, increasing persistent free radicals and decreasing microbial abundance and diversity. The influences of SeNPs and SeO32– on two typical soil microorganisms (Bacillus sp. and Escherichia coli) were also evaluated, and SeNPs were more difficult to enter into microorganisms directly, with lower toxicity and higher safety. These results indicated that SeNPs were a more environment-friendly Se additive for agriculture applications. This work provides useful information for better understanding the environmental fate and behavior of Se fertilizer in the soil. |
| Databáze: | OpenAIRE |
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