Fungi and Arsenic: Tolerance and Bioaccumulation by Soil Saprotrophic Species

• DOI: 10.3390/app10093218
• Publication Date: 2020-05-07T07:10:38Z
• Authors: Andrea Ceci; Veronica Spinelli; Lorenzo Massimi; Silvia Canepari; Anna Maria Persiani
• Keywords: Technology; QH301-705.5; QC1-999; 03 medical and health sciences; <i>Absidia spinosa</i>; multi-elemental analysis; soil fungi; Biology (General); QD1-999; <i>Cephalotrichum nanum</i>; 0303 health sciences; Absidia spinosa; arsenic; arsenite tolerance; bioaccumulation; Cephalotrichum nanum; Metarhizium marquandii; multi-elemental analysis; Purpureocillium lilacinum; siderophores; soil fungi; <i>Purpureocillium lilacinum</i>; siderophores; T; Physics; arsenite tolerance; arsenic; 15. Life on land; Engineering (General). Civil engineering (General); 6. Clean water; Chemistry; bioaccumulation; 13. Climate action; TA1-2040; <i>Metarhizium marquandii</i>

Increasing arsenic environmental concentrations are raising worldwide concern for its impacts on human health and ecosystem functionality. In order to cope with contamination, bioremediation using fungi can represent an efficient, sustainable, cost-effective technological solution. Fungi mitigate contamination through different mechanisms including bioaccumulation. this work, four soil saprotrophic Absidia spinosa, Purpureocillium lilacinum, Metarhizium marquandii, Cephalotrichum nanum, isolated from soils naturally high concentrations, were tested their ability tolerate sodium arsenite accumulate As in cultural conditions. pH medium after fungal growth was measured study variation metabolic responses. Arsenic bioaccumulation influence the uptake of other elements investigated multi-elemental analysis hydride generation atomic fluorescence spectrometry (HG-AFS), inductively coupled plasma mass (ICP-MS) optical emission spectroscopy (ICP-OES). Considering increasing interest siderophore application metal bioremediation, production siderophores affinity both Fe also evaluated. All species able biomass all conditions produced affinities As. The results suggest that attractive potential candidates contaminated worthy further investigation.