Soil Microbial Relationships in Fungal-Bacterial Bioremediation Systems: To synergy or not to be?

  • Micaela Buda

Abstract

To address the proliferation of soil pollutants and their profound impacts on the

microbiome of soil habitats, bioremediation technology has focused on using bacteria and fungi

which utilize natural metabolic processes as tools for the removal of recalcitrant pollutants.

Independently, fungi and bacteria have demonstrated remediation capabilities but the synergy

between them offers a possibility for accelerated removal efficacies. The influence of fungal

partners on bacterial communities is based on several variables, including specific fungal

partners, environmental conditions, and soil pollutants, making it difficult to predict explicit

microbial behaviors for entire bioremediation cases. One area of study addressing this issue

is the addition of biostimulants to an inoculated substrate to aid microbial partners in their

bioremediation efforts by providing an additional nutrient source that can reduce the occurrence

of resource competition. In this review, an evaluation of current studies exploring fungalbacterial

responses to pollutants and bioremediation strategies is used to synthesize current

insights on how this synergism may be employed in soil remediation methods. Overall, future

investigations should concentrate on the long-term impacts between the indigenous microbiome

within contaminated soils and the fungal-bacterial consortium employed to shed light on how

these pairings will behave during comprehensive applications.

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