An Overview of Extremophile: Microbial Diversity, Adaptive Strategies, and Potential Applications
Meglali Amina, Lotfi Ghellai
Abstract
The microorganisms that live under extreme conditions on Earth are known as extremophiles.They possess an extraordinary capability to endure extreme conditions, including salinity, temperature variations, pH, desiccation, and nutrient scarcity, among others.These organisms, including a vast array of bacteria, eukarya, and archaea, have evolved specialized structural and functional adaptations that make them capable of thriving in extremely selective environments in such a way that they showcase remarkable adaptations that push the limits of what we consider habitable.This capability results in valuable compounds with great potential for developing novel pharmaceuticals and biotechnological innovations.The present review paper aims to summarize current knowledge on the diversity of extremophilic microorganisms and the adaptive strategies employed to face such a range of extreme conditions.Particular attention will be given to temperature, salinity, pH, and desiccation adaptation.The review also highlights their potential applications, specifically focusing on pharmaceutical and biotechnological applications.