Selection of filamentous fungi that are resistant to the herbicides atrazine, glyphosate and pendimethalin



Document title: Selection of filamentous fungi that are resistant to the herbicides atrazine, glyphosate and pendimethalin
Journal: Acta scientiarum. Agronomy
Database: PERIÓDICA
System number: 000459896
ISSN: 1679-9275
Authors: 1
2
3
4
Institutions: 1Universidade Estadual do Maranhao, Balsas, Maranhao. Brasil
2Universidade Estadual da Regiao Tocantina do Maranhao, Centro de Ciencias Agrarias, Imperatriz, Maranhao. Brasil
3Universidade Estadual da Regiao Tocantina do Maranhao, Centro de Ciencias Exatas, Naturais e Tecnologicas, Imperatriz, Maranhao. Brasil
4Universidade Federal de Pernambuco, Centro de Biociencias, Recife, Pernambuco. Brasil
Year:
Volumen: 43
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract The objective of the present study was to isolate fungi from agricultural soils and evaluate fungal growth in culture medium contaminated with atrazine, glyphosate and pendimethalin. Filamentous fungi were isolated from agricultural soils and cultured in a modified culture medium containing 0, 10, 20, 50, and 100 μg mL-1 atrazine, glyphosate and pendimethalin for 14 days at 28°C. The fungi that presented optimal and satisfactory growth were plated in Sabouraud culture medium with 4% dextrose and containing the herbicides at concentrations of 0, 10, 20, 50, and 100 μg mL-1 for seven days at 28°C. The mean mycelial growth values were submitted to analysis of variance and the Tukey test (p < 0.05%) for comparison and relative growth determination, and maximum inhibition rates were calculated. The isolated fungi Aspergillus fumigatus, Fusarium verticillioides and Penicillium citrinum were shown to be resistant to atrazine, glyphosate and pendimethalin. F. verticillioides showed higher mean mycelial growth in the culture media contaminated with atrazine and glyphosate than the other two fungi. In the culture medium contaminated with pendimethalin, F. verticillioides, and A. fumigatus presented the highest mean mycelial growth values
Disciplines: Agrociencias,
Biología
Keyword: Hongos,
Suelos,
Hongos filamentosos,
Resistencia a herbicidas,
Biorremediación
Keyword: Fungi,
Soils,
Filamentous fungi,
Bioremediation,
Herbicides resistance
Full text: Texto completo (Ver HTML) Texto completo (Ver PDF)