Effect of arsenic on microorganisms and biofilms in MIC of water network materials

Microorganisms in natural and artificial aquatic environments attach to wet surfaces to form a biofilm (Dexter, 2003), which causes problems such as microbially induced corrosion (MIC), increased resistance to biocides and persistence of pathogenic species. Arsenic (As) is being increasingly detecte...

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Autores principales: Rastelli, Silvia Elena, Viera, Marisa, Rosales, Blanca Margarita
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2013
Materias:
Ingeniería Química
Biología molecular
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/92778
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-92778
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Biología molecular
spellingShingle Ingeniería Química
Biología molecular
Rastelli, Silvia Elena
Viera, Marisa
Rosales, Blanca Margarita
Effect of arsenic on microorganisms and biofilms in MIC of water network materials
topic_facet Ingeniería Química
Biología molecular
description Microorganisms in natural and artificial aquatic environments attach to wet surfaces to form a biofilm (Dexter, 2003), which causes problems such as microbially induced corrosion (MIC), increased resistance to biocides and persistence of pathogenic species. Arsenic (As) is being increasingly detected in distribution water services, generating serious sanitary and social problems throughout the Planet (Pontius et al. 1994; Masud Karim 2000). The existence of bacterial species able to grow in the presence of high concentrations of this chemical is well known (Oremland and Stolz 2005). The development of molecular techniques has allowed the study of microbial communities (Muyzer 1999). Among these techniques denaturing gradient gel electrophoresis (DGGE) is commonly used for genetic fingerprint analysis of microbial community composition, diversity and dynamics (Green et al. 2009). Electron microscopy techniques such as scanning electron microscopy (SEM) and environmental SEM (ESEM) have been important for high resolution visualization of bacterial biofilm outer surfaces. The main purpose of this work was to shed light on the effect of As(V) on the sessile bacterial communities produced on four substrata used in water distribution systems and their correlation with susceptibility to MIC of these substrata, using molecular biology and microscope techniques.
format Objeto de conferencia
Objeto de conferencia
author Rastelli, Silvia Elena
Viera, Marisa
Rosales, Blanca Margarita
author_facet Rastelli, Silvia Elena
Viera, Marisa
Rosales, Blanca Margarita
author_sort Rastelli, Silvia Elena
title Effect of arsenic on microorganisms and biofilms in MIC of water network materials
title_short Effect of arsenic on microorganisms and biofilms in MIC of water network materials
title_full Effect of arsenic on microorganisms and biofilms in MIC of water network materials
title_fullStr Effect of arsenic on microorganisms and biofilms in MIC of water network materials
title_full_unstemmed Effect of arsenic on microorganisms and biofilms in MIC of water network materials
title_sort effect of arsenic on microorganisms and biofilms in mic of water network materials
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/92778
work_keys_str_mv AT rastellisilviaelena effectofarseniconmicroorganismsandbiofilmsinmicofwaternetworkmaterials
AT vieramarisa effectofarseniconmicroorganismsandbiofilmsinmicofwaternetworkmaterials
AT rosalesblancamargarita effectofarseniconmicroorganismsandbiofilmsinmicofwaternetworkmaterials
bdutipo_str Repositorios
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