Reintroducing plant coverage in a tropical wetland contaminated with oil and sulfate: rhizosphere effects on Desulfovibrio populations
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Costa Rica
2018
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| author | Antonio Trujillo-Narcía |
| author_facet | Antonio Trujillo-Narcía |
| contents | Reintroducing plant coverage in a tropical wetland contaminated with oil and sulfate: rhizosphere effects on Desulfovibrio populations Antonio Trujillo-Narcía María del Carmen Rivera-Cruz Eduardo Antonio Trujillo-Rivera Antonio Roldán Garrigos Biología Gleysol Leersia bacteria Eleocharis weathered petroleum The Mexican tropical wetland is a coastal system with capacity to support the contamination derived from the extractive industry and the transformation of crude oil, due to its high plant biodiversity and the presence of rhizospheric reducing sulphate bacteria from plants tolerant to crude oil. A field experiment was carried out for nine months to evaluate the adaptation of aquatic plants Leersia hexandra grass and Eleocharis palustris spikerush reintroduced in a wetland contaminated with 75 560 to 118 789 mg kg-1 of weathered petroleum and also with sulfate, derived from oil and gas pipeline leaks, and gaseous emissions. The effect of the weathered oil and sulfate on the dry matter production and the population density of the bacterium Desulfovibrio spp, isolated from the rhizosphere and soil of both plants, were evaluated. The means of the variables had statistical differences (p< 0.05). Weathered oil inhibited dry matter production of L. hexandra but not E. palustris; the effect of petroleum on Desulfovibrio density was very significant negative in the rhizosphere and in the soil of both plants. Sulfate reduced the dry matter of grass. The exposure of Desulfovibrio to sulfate significantly reduced its density in rhizosphere and soil (p< 0.01). We recommend the use of E. palustris for the decontamination of flooded soils contaminated with weathered oil and sulfate. Rev. Biol. Trop. 66(2): 908-917. Epub 2018 June 01. 2018 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44958219031 https://www.redalyc.org/journal/449/44958219031/ https://www.redalyc.org/journal/449/44958219031/html/ https://www.redalyc.org/journal/449/44958219031/44958219031.epub https://www.redalyc.org/journal/449/44958219031/movil 10.15517/rbt.v66i2.33422 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.66 |
| format | Artículo científico |
| id | redalyc_44958219031 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Reintroducing plant coverage in a tropical wetland contaminated with oil and sulfate: rhizosphere effects on Desulfovibrio populations Antonio Trujillo-Narcía Biología Gleysol Leersia bacteria Eleocharis weathered petroleum Reintroducing plant coverage in a tropical wetland contaminated with oil and sulfate: rhizosphere effects on Desulfovibrio populations Antonio Trujillo-Narcía María del Carmen Rivera-Cruz Eduardo Antonio Trujillo-Rivera Antonio Roldán Garrigos Biología Gleysol Leersia bacteria Eleocharis weathered petroleum The Mexican tropical wetland is a coastal system with capacity to support the contamination derived from the extractive industry and the transformation of crude oil, due to its high plant biodiversity and the presence of rhizospheric reducing sulphate bacteria from plants tolerant to crude oil. A field experiment was carried out for nine months to evaluate the adaptation of aquatic plants Leersia hexandra grass and Eleocharis palustris spikerush reintroduced in a wetland contaminated with 75 560 to 118 789 mg kg-1 of weathered petroleum and also with sulfate, derived from oil and gas pipeline leaks, and gaseous emissions. The effect of the weathered oil and sulfate on the dry matter production and the population density of the bacterium Desulfovibrio spp, isolated from the rhizosphere and soil of both plants, were evaluated. The means of the variables had statistical differences (p< 0.05). Weathered oil inhibited dry matter production of L. hexandra but not E. palustris; the effect of petroleum on Desulfovibrio density was very significant negative in the rhizosphere and in the soil of both plants. Sulfate reduced the dry matter of grass. The exposure of Desulfovibrio to sulfate significantly reduced its density in rhizosphere and soil (p< 0.01). We recommend the use of E. palustris for the decontamination of flooded soils contaminated with weathered oil and sulfate. Rev. Biol. Trop. 66(2): 908-917. Epub 2018 June 01. 2018 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44958219031 https://www.redalyc.org/journal/449/44958219031/ https://www.redalyc.org/journal/449/44958219031/html/ https://www.redalyc.org/journal/449/44958219031/44958219031.epub https://www.redalyc.org/journal/449/44958219031/movil 10.15517/rbt.v66i2.33422 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.66 |
| title | Reintroducing plant coverage in a tropical wetland contaminated with oil and sulfate: rhizosphere effects on Desulfovibrio populations |
| topic | Biología Gleysol Leersia bacteria Eleocharis weathered petroleum |
| url | https://www.redalyc.org/articulo.oa?id=44958219031 https://www.redalyc.org/journal/449/44958219031/ https://www.redalyc.org/journal/449/44958219031/html/ https://www.redalyc.org/journal/449/44958219031/44958219031.epub https://www.redalyc.org/journal/449/44958219031/movil |