| Revue: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000420221 |
| ISSN: | 0001-3765 |
| Autores: | Alves, Carla1 Costa, Eduarda2 Sofiatti, Jessica R2 Forte, Cesar T1 Winter, Fabio L1 Holz, Cinthia M1 Kaizer, Rosilene R2 Galon, Leandro1 |
| Instituciones: | 1Universidade Federal da Fronteira Sul, Programa de Pos-Graduacao em Ciencia e Tecnologia Ambiental, Erechim, Rio Grande do Sul. Brasil 2Instituto Federal de Educacao, Ciencia e Tecnologia do Rio Grande do Sul, Campus Sertão, Sertao, Rio Grande do Sul. Brasil |
| Año: | 2018 |
| Periodo: | Jun |
| Volumen: | 90 |
| Número: | 2 |
| Paginación: | 1533-1542 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | Most herbicides applied in crop field, stay in the soil for a period, affecting next crop or even the plants using as green manure. Nowadays, the use of herbicides grow to increase productivity, mainly in the grain producing region north of Rio Grande do Sul state. The objective of this study was to evaluate the effects of herbicides fomesafen and sulfentrazone on antioxidant system in Avena sativa1 , Vicia sativa2 , Raphanus sativus and Lupinus albus. The plants were exposed to varying concentrations of fomesafen3 (0, 0.125, 0.25 and 0.5 kg ha -1) and sulfentrazone (0, 0.3, 0.6 and 1.2 kg ha-1). For this, the activities of, ascorbat peroxidase, catalase and guaiacol enzymes were analyzed, and the levels of MDA were quantificated. Fomesafen and sulfentrazone promoted alterations in balance of plants generating oxidative stress and elicited the response of the antioxidant system of plants, mainly in the high doses of fomesafen, for the species V. sativa and R. sativus. At the same time, the 1,2 kg ha -1 dose of sulfentrazone generated lipid peroxidation for V. sativa, R. sativus and L. albus. Additionally, A. sativa was the species that demonstrated low alterations on antioxidant system with the exposure to herbicide fomesafen and sulfentrazone. Thus, we can we can suggest that the species present a better response in defense of the oxidative stress generated by the herbicides |
| Disciplinas: | Agrociencias, Biología, Química |
| Palabras clave: | Fitotecnia, Fisiología vegetal, Bioquímica, Catalasa, Enzimas, Plantas, Sistema PROTOX |
| Keyword: | Crop husbandry, Plant physiology, Biochemistry, Catalase, Enzymes, Plants, PROTOX system |
| Texte intégral: | Texto completo (Ver PDF) |
