ENVIRONMENTAL GENETICS APPROACHES FOR UNDERSTANDING MICROBIAL ADAPTATION IN POLLUTED AND EXTREME ECOSYSTEMS

Abstract

In this study, the author discusses the use of Environmental Genetics to learn about the adaptations of microbes to polluted and extreme environments. Microbial communities were studied with the help of some of the most high-voted methods like Metagenomics, whole-genome sequencing, and bioinformatics to find the functions of genes that could be related to stress tolerance and degradation of these polutants. Findings indicate that microbial communities in polluted habitats are more degradable (between 25-40 percent) of hydrocarbons and heavy metals. Microbial communities in extreme ecosystems that experience high salinity and temperature exhibited adaptive genetic response (i.e., gene regulation and horizontal gene transfer) to up to 30% of a rise in stress tolerance. Functional profiling indicated that there was a high level of metabolic flexibility genes, resistance pathways and environmental tolerance genes. The above results point out a significant importance of environmental genetics as a discipline that can help reveal the adaptive measures between organisms to help them survive in severe environments. Moreover, the paper highlights the opportunities of such microbes in biotechnology like bioremediation, waste management, and sustainable ecosystem management. All in all, a multi-omics approach offers a complete picture of how microbes can be adapted to environmental conditions and to harness their potential as a viable solution to environmental sustainability.