| Revue: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000436315 |
| ISSN: | 0001-3765 |
| Autores: | Schwalbert, Raissa1 Silva, Lincon O.S2 Schwalbert, Rai A3 Tarouco, Camila P1 Fernandes, Gillian S1 Marques, Anderson C.R1 Costa, Camila C1 Hammerschmitt, Rodrigo K2 Brunetto, Gustavo2 Nicoloso, Fernando T1 |
| Instituciones: | 1Universidade Federal de Santa Maria, Centro de Ciencias Naturais e Exatas, Santa Maria, Rio Grande do Sul. Brasil 2Universidade Federal de Santa Maria, Centro de Ciencias Rurais, Santa Maria, Rio Grande do Sul. Brasil 3Kansas State University, Agronomy Department, Manhattan, Kansas. Estados Unidos de América |
| Año: | 2019 |
| Volumen: | 91 |
| Número: | 4 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Successive applications of copper fungicides on vines have resulted in increased copper content in vineyard soils over the years. This high copper content has affected the growth of young vines in eradicated vineyards. Thus, the cultivation of annual species for a few years is an alternative to copper phytostabilization, because it would be a good way to decrease copper availability to plants. The aim of this study was to evaluate the physiological responses of different soybean cultivars to copper concentration increase. Four different soybean cultivars were grown under three copper concentrations: 0.5, 20 and 40 μM in nutrient solution. The main outcomes of this study were: i) Cultivar M 6410 IPRO recorded the highest photosynthetic rate when plants were exposed to 40 μM of copper in the nutrient solution; ii) plants in cultivar M 6410 IPRO accumulated large copper concentrations in their roots although did not decrease the root dry mass, possibly due to the higher superoxide dismutase activity; iii) cultivar DM 5958 RSF IPRO recorded drastically reduced photosynthetic rate and dry mass production due to copper excess. We conclude that each cultivar responded differently to the excess of copper, but none of them showed tolerance to it |
| Disciplinas: | Biología |
| Palabras clave: | Fisiología vegetal, Leguminosas, Nutrición mineral, Exceso de nutrientes, Cobre, Respuesta fisiológica, Sistemas antioxidantes, Fotosíntesis, Soya, Glycine max |
| Keyword: | Plant physiology, Legumes, Mineral nutrition, Nutrients excess, Copper, Physiological response, Antioxidant systems, Photosynthesis, Soybean, Glycine max |
| Texte intégral: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
