An Overview on Selenium Species Bioconversion by Bacteria from Mangrove, Red Sea, Egypt and Its Applications | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 204, Volume 29, Issue 4, July and August 2025, Page 2725-2748 PDF (1.18 MB) | ||||
| DOI: 10.21608/ejabf.2025.448458 | ||||
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| Author | ||||
| Shatla et al. | ||||
| Abstract | ||||
| Selenium is an essential trace element that is fundamental for life at low concentrations but becomes hazardous at slightly higher levels. It is widely distributed in the environment, including soil, water, plants, wastewater, mining sites, and the atmosphere. The conversion of selenite into elemental selenium has attracted significant attention because of its wide range of applications, unique properties, and the toxicity concerns associated with conventional chemical methods. As a result, green synthesis, or environmentally friendly alternatives, is increasingly emphasized. To effectively reduce selenite into elemental selenium, the isolation and characterization of halophilic selenite-reducing bacterial strains from the unique mangrove ecosystems of the Red Sea are crucial. Understanding the genetic diversity of these strains is essential, as genetic variation influences their metabolic capabilities and selenite reduction efficiency. Modern molecular techniques—such as DNA sequencing and proteomic analysis—offer powerful tools for assessing biodiversity at both genotypic and phenotypic levels, enabling precise identification of functional genes and pathways involved in selenite biotransformation. This research focused on how microorganisms convert inorganic selenium into less hazardous organic forms. It also investigated the biosynthesis and mechanisms of selenium nanoparticles (BioSeNPs), highlighting their diverse medicinal and environmental applications, including antibacterial, antiviral, anticancer, antioxidant, anti-inflammatory, agricultural uses, and heavy metal remediation. The study ultimately aimed to identify and develop bacterial strains with enhanced ability to convert and accumulate selenium, contributing to the production of safer and more effective selenium-based products. | ||||
| Keywords | ||||
| Selenium; SNPs application; Microbial reduction; Halophile; Genetic diversity | ||||
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