| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000436175 |
| ISSN: | 0001-3765 |
| Authors: | Ribeiro, Victor Hugo Vidal1 Coutinho, Italo Antonio Cotta2 Alencar, Brenda Thais Barbalho1 Cabral, Cássia Michelle1 Santos, José Barbosa dos1 Ferreira, Evander Alves3 Francino, Dayana Maria Teodoro1 |
| Institutions: | 1Universidade Federal dos Vales do Jequitinhonha e Mucuri, Departamento de Agronomia, Diamantina, Minas Gerais. Brasil 2Universidade Federal do Ceara, Departamento de Ciencias Biologicas, Fortaleza, Ceara. Brasil 3Universidade Federal de Minas Gerais, Campus Regional de Montes Claros, Montes Claros, Minas Gerais. Brasil |
| Year: | 2020 |
| Volumen: | 92 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | Contamination of water sources due to herbicide is of great concern. Clomazone is a pesticide with a high contamination potential which could possibility lixiviate to water streams. Changes caused by residual herbicide include flora modifications which are generally detrimental for some species. The lack of morphological studies performed in aquatic plants exposed to herbicide-contaminated environments has encouraged the development of our research. For the first time, we present a study that aimed to evaluate leaf injuries visible to the naked eye as well as microscopical effects which may be caused by clomazone on Pistia stratiotes. Pistia stratiotes was subjected to five concentrations of clomazone. Our analysis showed leaf injuries, especially after 15 days of clomazone application. Hormesis was observed when the water lettuce was subjected to the lower concentrations. Total leaf area showed increase following by reduction while injured until reaching the highest concentration. Although the concentrations of clomazone tested in our study are not lethal to water lettuce, such herbicide have still caused morphoanatomical damages on leaves which advocates for the use of P. stratiotes as a bioindicator of the presence of herbicides such as clomazone in water |
| Disciplines: | Biología, Agrociencias |
| Keyword: | Angiospermas, Herbicidas, Clomazone, Toxicidad, Macrófitas acuáticas, Hormesis, Anatomía foliar, Pistia stratiotes, Araceae |
| Keyword: | Angiosperms, Herbicides, Clomazone, Toxicity, Aquatic macrophytes, Hormesis, Leaf anatomy, Pistia stratiotes, Araceae |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
