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Mohamed, Z., Hosny, A., Bakr, A. (2022). Inhibition of The Growth and Toxicity of Cyanobacterium Chroococcus minutus Using Extremely Low Frequency Electromagnetic Fields. Egyptian Journal of Botany, 62(3), 817-824. doi: 10.21608/ejbo.2022.128307.1941
Zakaria A. Mohamed; Asmaa A. Hosny; Asmaa A. Bakr. "Inhibition of The Growth and Toxicity of Cyanobacterium Chroococcus minutus Using Extremely Low Frequency Electromagnetic Fields". Egyptian Journal of Botany, 62, 3, 2022, 817-824. doi: 10.21608/ejbo.2022.128307.1941
Mohamed, Z., Hosny, A., Bakr, A. (2022). 'Inhibition of The Growth and Toxicity of Cyanobacterium Chroococcus minutus Using Extremely Low Frequency Electromagnetic Fields', Egyptian Journal of Botany, 62(3), pp. 817-824. doi: 10.21608/ejbo.2022.128307.1941
Mohamed, Z., Hosny, A., Bakr, A. Inhibition of The Growth and Toxicity of Cyanobacterium Chroococcus minutus Using Extremely Low Frequency Electromagnetic Fields. Egyptian Journal of Botany, 2022; 62(3): 817-824. doi: 10.21608/ejbo.2022.128307.1941

Inhibition of The Growth and Toxicity of Cyanobacterium Chroococcus minutus Using Extremely Low Frequency Electromagnetic Fields

Article 15, Volume 62, Issue 3, September 2022, Page 817-824  XML PDF (1.54 MB)
Document Type: Regular issue (Original Article)
DOI: 10.21608/ejbo.2022.128307.1941
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Authors
Zakaria A. Mohamed1; Asmaa A. Hosny2; Asmaa A. Bakr email 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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