Avaliação do desenvolvimento Micelial da linhagem fúngicaI1SYS1A1I isolada de área de mineração em diferentes concentrações de metais pesados

Abstract

The incessant search to satisfy consumerism of the population has been producing residues harmful to the environment, as a consequence of the anthropic activities generated for the advancement of industrialization. Among the anthropic activities, mining stands out as one of the agents that generate the greatest contamination in soils by toxic metals. Thus, to recover contaminated areas, such as mining, bioremediation stands out, in which microorganisms are used as recuperative agents of these environments. Therefore, this work had as objective to evaluate the myelial development of fungal lineage I1SYS1A1 isolated from mining area in different concentrations of heavy metals. The evaluation of the mycelial development of fungal lineage against different concentrations of heavy metals occurred in the following concentrations of 25, 50, 100, 200, 300, 400 and 500 ppm of Pb2 +, Ni2 +, Co2 + and Cr3 +. Subsequently, strain I1SYS1A1 was cultured in these media and incubated in the BOD, with temperature controlled to 30 ± 2 ° C, for 10 days. The evaluation of the resistance of the fungal lineage to the concentrations of metals was analyzed through the growth of the lineage. From the analysis of the mycelial growth it was possible to observe that the mycelial development of the fungal line under study was inhibited by the Ni2 + and Co2 + metals in the concentrations of 300, 400 and 500 ppm. However, it presented a good growth for the metals Pb2 + and Cr3 + presenting mycelial development in all the studied concentrations, when compared with the control plates. The fungal line studied showed different growth levels for the metals Pb2 +, Ni2 +, Co2 + and Cr3 + and their use for the treatment of metal removal from contaminated environments may be the subject of further studies.