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, Page 817-824 PDF (1.54 MB) | ||||
| Document Type: Regular issue (Original Article) | ||||
| DOI: 10.21608/ejbo.2022.128307.1941 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Zakaria A. Mohamed1; Asmaa A. Hosny2; Asmaa A. Bakr  1
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| 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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