Inhibition of The Growth and Toxicity of Cyanobacterium Chroococcus minutus Using Extremely Low Frequency Electromagnetic Fields | ||
| Egyptian Journal of Botany | ||
| Article 15, Volume 62, Issue 3, September 2022, Pages 817-824 PDF (1.54 M) | ||
| Document Type: Regular issue (Original Article) | ||
| DOI: 10.21608/ejbo.2022.128307.1941 | ||
| Authors | ||
| Zakaria A. Mohamed1; Asmaa A. Hosny2; Asmaa A. Bakr* 1 | ||
| 1Botany and Microbiology Department, Faculty of Science, Sohag University, Sohag, Egypt | ||
| 2Physics Department, Faculty of Science, Sohag University, Sohag, Egypt | ||
| Abstract | ||
| THE EFFECTS of extremely low-frequency electromagnetic fields (ELF-EMFs) on the growth and synthesis of microcystins (MCs) production of the harmful cyanobacterium Chroococcus minutus were examined by exposing cyanobacterial cells to various ELF-EMF frequencies (0.1–1Hz) for various exposure times (10–60min). C. minutus cultures exposed to ELF-EMF at a frequency of 0.5Hz for 40min had significantly fewer cells than the control. Under these conditions, intracellular and extracellular (MCs) and chlorophyll-a concentrations also decreased significantly. Within 48h, no extracellular MCs were detected in cultures exposed to ELF-EMF for 60min. This study offers an eco-friendly technique for removing harmful cyanobacterial toxins from water resources. By degrading extracellular MCs after cell lysis, ELF-EMF is non-destructive, non-reactive and safe for the environment. In addition, it prevents additional aquatic environmental pollution input. | ||
| Keywords | ||
| Cyanobacteria; Cyanotoxins; Electromagnetic fields; Water treatment | ||
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