Authors: Ashok Kumar Barik, Sudha Tripathy
Abstract: Oil spills pose a persistent threat to marine and terrestrial ecosystems, demanding effective and eco-friendly remediation strategies. Microbial bioremediation, particularly through the adaptive pathways of native or introduced microbial populations, offers a sustainable alternative to physicochemical cleanup methods. This article explores the mechanisms by which microbial communities adapt to hydrocarbon contamination, focusing on metabolic flexibility, gene regulation, and community-level interactions. We review recent studies highlighting the role of hydrocarbonoclastic bacteria, including Alcanivorax, Marinobacter, and Pseudomonas, in degrading crude oil components. Special attention is given to horizontal gene transfer, biofilm formation, and enzyme induction in the context of oil degradation. Through comparative analyses of field trials and laboratory microcosms, we assess the resilience and adaptability of microbial consortia to different spill environments. This study further identifies knowledge gaps in current bioremediation models, proposing a framework for integrating omics technologies and biosensors for real-time monitoring and pathway optimization. By delineating adaptive microbial responses at both genetic and ecological scales, this work contributes to developing more efficient and predictive oil spill bioremediation strategies.
DOI: http://doi.org/10.5281/zenodo.16871702
