Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals
Heavy metal pollution is one the most serious environmental problems facing our planet today, and immediate solutions are needed. Heavy metals such as copper (Cu) and chromium (Cr) play an important role as trace elements in biochemical reactions, but these metals are toxic at higher concentrations....
| Authors: | ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2012 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/37735 |
| Online Access: | http://hdl.handle.net/11336/37735 |
| Access Level: | Open access |
| Keyword: | Actinobacteria Bioremediation Heavy Metals Indigenous Microorganisms Native Yeasts https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| _version_ | 1878403714998337536 |
|---|---|
| author | Colin, Veronica Leticia |
| author2 | Villegas, Liliana Beatriz Abate, Carlos Mauricio |
| author2_role | author author |
| author_browse | Abate, Carlos Mauricio Colin, Veronica Leticia Villegas, Liliana Beatriz |
| author_facet | Colin, Veronica Leticia Villegas, Liliana Beatriz Abate, Carlos Mauricio |
| author_role | author |
| collection | CONICET Digital (CONICET) |
| description | Heavy metal pollution is one the most serious environmental problems facing our planet today, and immediate solutions are needed. Heavy metals such as copper (Cu) and chromium (Cr) play an important role as trace elements in biochemical reactions, but these metals are toxic at higher concentrations. In our region, mining and industrial activities have led to large-scale copper contamination in the environment. All organisms have homeostasis mechanisms for this metal, but when these controls fail or are exceeded several toxicological processes can develop.Problems involving Cr contamination are related to the fact that Argentina is an important world producer of leather. A chromium compound is used as a tanning agent, which has resulted in severe contamination near tanneries, with a mix of Cr(III) and Cr(VI). At present, the conventional technologies used to remove heavy metals from the environment involve physicochemical processes, which are costly and require large amounts of energy and specialized equipment. However, microbe-based removal is now considered to be an effective alternative method to the conventional processes and is receiving greater levels of interest for potential uses in bioremediation.This review discusses the toxic effects of Cu and Cr on the environment and on human health, as well as possible approaches for bioremediation of these metals using native microbes from our region. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | AR_b2c5c5ef8d2f36e5e4e52573c09cf1c2 |
| identifier_str_mv | Colin, Veronica Leticia; Villegas, Liliana Beatriz; Abate, Carlos Mauricio; Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals; Elsevier; International Biodeterioration and Biodegradation; 69; 4-2012; 28-37 0964-8305 CONICET Digital CONICET |
| institution | Consejo Nacional de Investigaciones Científicas y Técnicas |
| instname_str | Consejo Nacional de Investigaciones Científicas y Técnicas |
| language | eng |
| network_acronym_str | AR |
| network_name_str | Argentina |
| oai_identifier_str | oai:ri.conicet.gov.ar:11336/37735 |
| publishDate | 2012 |
| publishDateSort | 2012 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | CONICET Digital (CONICET) |
| spelling | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals Colin, Veronica Leticia Villegas, Liliana Beatriz Abate, Carlos Mauricio Actinobacteria Bioremediation Heavy Metals Indigenous Microorganisms Native Yeasts https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Heavy metal pollution is one the most serious environmental problems facing our planet today, and immediate solutions are needed. Heavy metals such as copper (Cu) and chromium (Cr) play an important role as trace elements in biochemical reactions, but these metals are toxic at higher concentrations. In our region, mining and industrial activities have led to large-scale copper contamination in the environment. All organisms have homeostasis mechanisms for this metal, but when these controls fail or are exceeded several toxicological processes can develop.Problems involving Cr contamination are related to the fact that Argentina is an important world producer of leather. A chromium compound is used as a tanning agent, which has resulted in severe contamination near tanneries, with a mix of Cr(III) and Cr(VI). At present, the conventional technologies used to remove heavy metals from the environment involve physicochemical processes, which are costly and require large amounts of energy and specialized equipment. However, microbe-based removal is now considered to be an effective alternative method to the conventional processes and is receiving greater levels of interest for potential uses in bioremediation.This review discusses the toxic effects of Cu and Cr on the environment and on human health, as well as possible approaches for bioremediation of these metals using native microbes from our region. Fil: Colin, Veronica Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina Fil: Villegas, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina Fil: Abate, Carlos Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina Elsevier http://hdl.handle.net/11336/37735 Colin, Veronica Leticia; Villegas, Liliana Beatriz; Abate, Carlos Mauricio; Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals; Elsevier; International Biodeterioration and Biodegradation; 69; 4-2012; 28-37 0964-8305 CONICET Digital CONICET |
| spellingShingle | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals Colin, Veronica Leticia Actinobacteria Bioremediation Heavy Metals Indigenous Microorganisms Native Yeasts https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| status_str | publishedVersion |
| title | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals |
| title_full | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals |
| title_fullStr | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals |
| title_full_unstemmed | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals |
| title_short | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals |
| title_sort | Indigenous microorganisms as potential bioremediators for environments contaminated with heavy metals |
| topic | Actinobacteria Bioremediation Heavy Metals Indigenous Microorganisms Native Yeasts https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| topic_facet | Actinobacteria Bioremediation Heavy Metals Indigenous Microorganisms Native Yeasts https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| url | http://hdl.handle.net/11336/37735 |