A mechanistic view of interactions of a nanoherbicide with target organism
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Data
2019-04-01
Autores
Bombo, Aline Bertolosi
Pereira, Anderson Espírito Santo
Lusa, Makeli Garibotti
Oliveira, Eliana Medeiros de
Oliveira, Jhones Luis de [UNESP]
Campos, Estefânia Vangelie Ramos
Jesus, Marcelo Bispo de
Oliveira, Halley Caixeta
Fraceto, Leonardo Fernandes [UNESP]
Mayer, Juliana Lischka Sampaio
Título da Revista
ISSN da Revista
Título de Volume
Editor
American Chemical Society
Resumo
Atrazine is one of the most used herbicides and has been associated with persistent surface and groundwater contamination, and novel formulations derived from nanotechnology can be a potential solution. We used poly-epsilon caprolactone nano-encapsulation of atrazine (NC+ATZ) to develop a highly effective herbicidal formulation. Detailed structural study of interaction between the formulation and Brassica juncea plants was carried out with evaluation of the foliar uptake of nanoatrazine and structural alterations induced in the leaves. Following post-emergent treatment, NC+ATZ adhered to the leaf and penetrated mesophyll tissue mainly through the hydathode regions. NC+ATZ was transported directly through the vascular tissue of the leaves and into the cells where it degraded the chloroplasts resulting in herbicidal activity. Nanocarrier systems, such as the one used in this study, have a great potential for agricultural applications in terms of maintenance of herbicidal activity at low concentrations and a substantial increase in the herbicidal efficacy
Descrição
Palavras-chave
Atrazine, Confocal microscopy, Leaf uptake, Nanoherbicide, PCL nanocapsules
Como citar
Journal of Agricultural and Food Chemistry, v. 67, n. 16, p. 4453–4462, 2019