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<p>This study hypothesized that the marble waste-water&#xa0;polluted ecosystem (MWPE) hosts indigenous fungi that can tolerate and bioremediate heavy metals more successfully than non-indigenous fungi and can be used in managing polluted environments. Therefore, this work investigates the biosorption potential of indigenous fungi for different heavy metals (cadmium, iron, nickel, cobalt, mercury and copper) contamination isolated from the MWPE. A total of six indigenous fungi strains, including <i>Aspergillus brasiliensis</i>, <i>A. sydowii</i>, <i>Fusarium petroliphilum</i>, <i>Aureobasidium leucospermi</i>, <i>Alternaria alternata</i> and <i>Curvularia aeria</i> were isolated and identified through molecular and phylogenetic approaches using ITS (Internal Transcribed Spacer) region sequencing and Maximum Likelihood (ML) analysis. Among these strains, <i>A. sydowii, A. brasiliensis, A. alternata</i> and<i> C. aeria</i> demonstrated notable remediation potential with removal efficiencies exceeding 50% for Cd, Hg and 35% for Cu, 32% for Ni, 23% for Fe and 18% for Co within 28-days period. Statistical analyses (ANOVA, Tukey’s test, <i>p</i> &lt; 0.05) revealed an initial decrease in biosorption efficiency during the first week followed by a consistent increase suggesting fungal adaptation and enhanced metabolic activity over time. Our research recommends the tolerance of identified fungi for large-scale myco-sorption or remediation in bioreactor systems and provides valuable insights for governmental and non-governmental organizations involved in waste water&#xa0;management and policy formulation for contaminated ecosystems.</p>

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Integrating Molecular and Ecological Insights for better understanding of Bioremediation Potential of Indigenous Fungal Isolates from the Marble Wastewater

  • 期刊论文

  • 发表日期：

    2025年11月15日

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  • Zeeshan Ahmad,
  • Shujaul Mulk Khan,
  • Adam Khan,
  • Muhammad Ishtiaq Ali,
  • Gulnar Tulindinova,
  • Shahab Ali,
  • Jie Yang

摘要

This study hypothesized that the marble waste-water polluted ecosystem (MWPE) hosts indigenous fungi that can tolerate and bioremediate heavy metals more successfully than non-indigenous fungi and can be used in managing polluted environments. Therefore, this work investigates the biosorption potential of indigenous fungi for different heavy metals (cadmium, iron, nickel, cobalt, mercury and copper) contamination isolated from the MWPE. A total of six indigenous fungi strains, including Aspergillus brasiliensis, A. sydowii, Fusarium petroliphilum, Aureobasidium leucospermi, Alternaria alternata and Curvularia aeria were isolated and identified through molecular and phylogenetic approaches using ITS (Internal Transcribed Spacer) region sequencing and Maximum Likelihood (ML) analysis. Among these strains, A. sydowii, A. brasiliensis, A. alternata and C. aeria demonstrated notable remediation potential with removal efficiencies exceeding 50% for Cd, Hg and 35% for Cu, 32% for Ni, 23% for Fe and 18% for Co within 28-days period. Statistical analyses (ANOVA, Tukey’s test, p < 0.05) revealed an initial decrease in biosorption efficiency during the first week followed by a consistent increase suggesting fungal adaptation and enhanced metabolic activity over time. Our research recommends the tolerance of identified fungi for large-scale myco-sorption or remediation in bioreactor systems and provides valuable insights for governmental and non-governmental organizations involved in waste water management and policy formulation for contaminated ecosystems.