Extracellular DNA Provides Structural Integrity to a Micrococcus luteus Biofilm.
Langmuir
; 35(19): 6468-6475, 2019 05 14.
Article
en En
| MEDLINE
| ID: mdl-30995049
ABSTRACT
Force spectroscopy was used to show that extracellular DNA (eDNA) has a pre-eminent structural role in a biofilm. The adhesive behavior of extracellular polymeric substances to poly(ethylene terephthalate), a model hydrophobic surface, was measured in response to their degradation by hydrolytic enzymes known for their biofilm dispersion potential DNaseI, protease, cellulase, and mannanase. Only treatment with DNaseI significantly decreased the adhesive force of the model bacterium Micrococcus luteus with the surface, and furthermore this treatment almost completely eliminated any components of the biofilm maintaining the adhesion, establishing a key structural role for eDNA.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
ADN Bacteriano
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Micrococcus luteus
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Biopelículas
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Espacio Extracelular
Idioma:
En
Año:
2019
Tipo del documento:
Article