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Orientador(es)
Resumo(s)
Heavy metal-contaminated soils are a serious environmental problem. Herein, the culturable heterotrophic bacterial community present on two metal(loid)-contaminated sites in the Northern Portugal was investigated. The bacterial counts ranged from 5.96 to 7.69 and 7.04 to 7.51 (log CFUg(-1) soil) in Sites 1 and 3, respectively. The bacterial population was predominantly composed of Firmicutes, Proteobacteria, and Actinobacteria on both sites. The most represented genera in Site 1 were Bacillus (41%) and Pseudomonas (27%), whereas Arthrobacter (21%) and Pseudomonas (13%) were the most represented genera in Site 3. Several bacterial isolates showed tolerance to high concentrations of metal(loid)s, suggesting that both contaminated sites are a valuable source of metal(loid)-tolerant bacteria, which may be further used in bioremediation and/or phytoremediation processes.
Descrição
Palavras-chave
Bacterial diversity Metal(loid)s Metal(loid) tolerance Soil contamination
Contexto Educativo
Citação
Pires, C., Franco, A. R., Pereira, S. I. A., Henriques, I., Correia, A., Magan, N., & Castro, P. M. L. (2017). Metal(loid)-contaminated soils as a source of culturable heterotrophic aerobic bacteria for remediation applications. Geomicrobiology Journal, 34(9), 760-768
Editora
Taylor & Francis