Molecular characterization of early colonizer bacteria from wastes in a steel plant.
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Data
2008
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Resumo
Forty-nine bacteria isolated from four newly-produced waste samples of
a steel industry, which had a high content of CaO, MgO, Cr and P2O5, were
characterized molecularly and phenotypically by susceptibility testing against
heavy metals.
Methods and Results: Phylogenetic analysis using 16S rRNA gene sequences
revealed that the isolates belonged to nine genera, Pseudomonas, Micrococcus,
Acinetobacter, Bacillus, Dietzia, Kocuria, Diaphorobacter, Staphylococcus and
Brevibacillus. Besides, some isolates could be affiliated to species: M. luteus,
Ac. junii, Ac. schindleri, B. cereus, K. marina, D. nitroreducens and Staph.
warneri. The bacteria that were characterized are taxonomically diverse, and
Pseudomonas and Micrococcus predominated. Fingerprinting BOX-PCR revealed
high genomic heterogeneity among the isolates. Among the heavy metal
compounds Zn, Ni, Pb and Cu were least toxic to the bacterial isolates,
whereas Ag inhibited all isolates at 0Æ001 mmol l)1.
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Box fingerprinting, Colonizer, Steelmaking waste, Heavy metal
Citação
FREITAS, D. B. de et al. Molecular characterization of early colonizer bacteria from wastes in a steel plant. Letters in Applied Microbiology, v. 47, p. 241-249, 2008. Disponível em: <http://onlinelibrary.wiley.com/doi/10.1111/j.1472-765X.2008.02415.x/abstract>. Acesso em: 20 jul. 2017.