BIOREMEDIATION PERSPECTIVES USING AUTOCHTHONOUS SPECIES OF Trichoderma sp. FOR DEGRADATION OF ATRAZINE IN AGRICULTURAL SOIL FROM THE TULANCINGO VALLEY, HIDALGO, MEXICO
| dc.creator | Margarita Islas Pelcastre | |
| dc.creator | José Roberto Villagómez Ibarra | |
| dc.creator | Alfredo Madariaga Navarrete | |
| dc.creator | Javier Castro Rosas | |
| dc.creator | César Abelardo González Ramirez | |
| dc.creator | Otilio Arturo Acevedo Sandoval | |
| dc.date | 2013 | |
| dc.date.accessioned | 2019-10-08T20:37:03Z | |
| dc.date.available | 2019-10-08T20:37:03Z | |
| dc.description | The objective of this study was to show an in vitro bioremediation methodology for atrazine- contaminated soils through the use of local strains of native fungi isolated from the Phaseolus vulgaris L rhizosphere present in cultivable soils as well as to evaluate its resistance and capacity for atrazine degradation. A Trichoderma sp. species was identified in three cultivable soils from the Tulancingo Hidalgo, México region (contaminated with and without atrazine), which resisted atrazine concentrations of 10,000 mg L-1. Tests showed that the strain grows exponentially in atrazine- contaminated soil over a range of 105-106 CFU g-1 in 15 days using atrazine as the only carbon and nitrogen source, while the control and witress showed a decrease of 100-103 UFC g-1 in the same period of time. For the atrazine degradation experiments, a treatment of the application of Trichoderma (104 - 105 CFU mL-1) was applied to sterilized and non- sterilized soil contaminated with 500 mg Kg-1 of atrazine, evaluated at four time intervals (5, 10, 20 and 40 days). Statistical differences were found (α=0.050, Tukey) among treatments with the fungi and the test days. The native Trichoderma strain degraded 89% of the atrazine in 40 days. It showed that it is viable and cultivable in soil bioremediation. | |
| dc.format | application/pdf | |
| dc.identifier | http://www.redalyc.org/articulo.oa?id=93928324012 | |
| dc.identifier.uri | http://hdl.handle.net/11285/635457 | |
| dc.language | en | |
| dc.publisher | Universidad Autónoma de Yucatán | |
| dc.relation | http://www.redalyc.org/revista.oa?id=939 | |
| dc.rights | Tropical and Subtropical Agroecosystems | |
| dc.source | Tropical and Subtropical Agroecosystems (México) Num.2 Vol.16 | |
| dc.subject | Agrociencias | |
| dc.subject | Trichoderma | |
| dc.subject | native | |
| dc.subject | biodegradation | |
| dc.subject | herbicide | |
| dc.title | BIOREMEDIATION PERSPECTIVES USING AUTOCHTHONOUS SPECIES OF Trichoderma sp. FOR DEGRADATION OF ATRAZINE IN AGRICULTURAL SOIL FROM THE TULANCINGO VALLEY, HIDALGO, MEXICO | |
| dc.type | Artículo científico |