| Title: | Role of Microbes in the degradation of organic semivolatile compounds in polar ecosystems: A review |
| Author(s): | Egas C; Galban-Malagon C; Castro-Nallar E; Molina-Montenegro MA; |
| Address: | "Centre for Integrative Ecology (CIE), Universidad de Talca, Campus Lircay, Talca, Chile; Instituto de Ciencias Biologicas (ICB), Universidad de Talca, Campus Lircay, Talca, Chile. Centro de Genomica, Ecologia y Medio Ambiente (GEMA), Universidad Mayor, Campus Huechuraba, Santiago, Chile; Institute of Environment, Florida International University, University Park, Miami, FL 33199, USA. Centre for Integrative Ecology (CIE), Universidad de Talca, Campus Lircay, Talca, Chile; Departamento de Microbiologia, Facultad de Ciencias de la Salud, Universidad de Talca, Campus Lircay, Talca, Chile. Centre for Integrative Ecology (CIE), Universidad de Talca, Campus Lircay, Talca, Chile; Instituto de Ciencias Biologicas (ICB), Universidad de Talca, Campus Lircay, Talca, Chile; Centro de Investigacion en Estudios Avanzados del Maule (CIEAM), Universidad Catolica del Maule, Talca, Chile. Electronic address: marco.molina@utalca.cl" |
| DOI: | 10.1016/j.scitotenv.2023.163046 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "The Arctic and the Antarctic Continent correspond to two eco-regions with extreme climatic conditions. These regions are exposed to the presence of contaminants resulting from human activity (local and global), which, in turn, represent a challenge for life forms in these environments. Anthropogenic pollution by semi-volatile organic compounds (SVOCs) in polar ecosystems has been documented since the 1960s. Currently, various studies have shown the presence of SVOCs and their bioaccumulation and biomagnification in the polar regions with negative effects on biodiversity and the ecosystem. Although the production and use of these compounds has been regulated, their persistence continues to threaten biodiversity and the ecosystem. Here, we summarize the current literature regarding microbes and SVOCs in polar regions and pose that bioremediation by native microorganisms is a feasible strategy to mitigate the presence of SVOCs. Our systematic review revealed that microbial communities in polar environments represent a wide reservoir of biodiversity adapted to extreme conditions, found both in terrestrial and aquatic environments, freely or in association with vegetation. Microorganisms adapted to these environments have the potential for biodegradation of SVOCs through a variety of genes encoding enzymes with the capacity to metabolize SVOCs. We suggest that a comprehensive approach at the molecular and ecological level is required to mitigate SVOCs presence in these regions. This is especially patent when considering that SVOCs degrade at slow rates and possess the ability to accumulate in polar ecosystems. The implications of SVOC degradation are relevant for the preservation of polar ecosystems with consequences at a global level" |
| Keywords: | Humans Ecosystem Biodiversity Environmental Pollution *Volatile Organic Compounds Bioaccumulation *Polycyclic Aromatic Hydrocarbons/analysis Antarctica Arctic Persistent Organic Pollutants (POPs) Polar microorganisms Polycyclic Aromatic Hydrocarbons (PAHs; |
| Notes: | "MedlineEgas, Claudia Galban-Malagon, Cristobal Castro-Nallar, Eduardo Molina-Montenegro, Marco A eng Review Systematic Review Netherlands 2023/03/26 Sci Total Environ. 2023 Jun 25; 879:163046. doi: 10.1016/j.scitotenv.2023.163046. Epub 2023 Mar 24" |
