PERSONAL DE APOYO
DI MEGLIO leonardo gabriel
artículos
Título:
Biofilms of Halobacterium salinarum as a tool for phenanthrene bioremediation
Autor/es:
DI MEGLIO, LEONARDO GABRIEL; BUSALMEN, JUAN PABLO; PEGORARO, CÉSAR NICOLAS; NERCESSIAN, DÉBORA
Revista:
BIOFOULING
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Año: 2020 vol. 36 p. 564 - 575
ISSN:
0892-7014
Resumen:
The use of hyperhalophilic microorganisms is emerging as a sustainable alternative to cleanhydrocarbon-polluted hypersaline water bodies. In line with this practice, this work reports onthe ability of the archaeon Halobacterium salinarum to develop biofilms on a solid surface conditionedby the presence of phenanthrene crystals, which results in the removal of the contaminatingcompound. The cell surface hydrophobicity does not change during the removal processand this organism is shown to constitutively produce a surfactant molecule with specific actionon aromatic hydrocarbons, both indicating that phenanthrene removal might proceed througha non-contact mechanism. A new approach is presented to follow the process in situ throughepifluorescence microscopy by monitoring phenanthrene auto-fluorescence.
