| Full text | |
| Author(s): Show less - |
Santos, E.
;
Montanha, G. S.
;
Gomes, M. H. F.
;
Duran, N. M.
;
Correa, C. G.
;
Romeu, S. L. Z.
;
Pereira, A. E. S.
;
Oliveira, J. L.
;
Almeida, E.
;
Perez-de-Luque, A.
;
Ghoshal, S.
;
Santaella, C.
;
de Lima, R.
;
Fraceto, L. F.
;
Carvalho, H. W. P.
Total Authors: 15
|
| Document type: | Journal article |
| Source: | ENVIRONMENTAL SCIENCE-NANO; v. 9, n. 10, p. 14-pg., 2022-08-19. |
| Abstract | |
Agriculture is responsible for supplying food, feed, fibres, and an increasing fraction of fuel and raw chemicals for industry. Fulfilling such demands sustainably is one of the major challenges of our time. In this metadata analysis, we offer a quantitative overview of how scientists have been addressing the effects of nanomaterials on plants between 2009 and 2022. The analysis showed that cultivated crops (ca. 55%) and plant nutrients (54%) are mostly employed in the studies, pointing to the relevance of these aspects to agriculture. Nevertheless, it also revealed that the concentration of elements as nanomaterials is generally more than 2-fold higher than the elemental concentration applied as traditionally formulated fertilisers or those naturally found in soil. Furthermore, the median time span of most studies, i.e., 49 days for plants cultivated in soil, is still quite short compared to annual crop life cycles (90-120 days), and little attention (19% of treatments) has been devoted to soil microorganisms. Also, only a small fraction of experiments (6%) has been carried out under field conditions. Therefore, the data did not allow establishing correlations between effects and experimental parameters, such as concentration range, soil pH, or time of exposure. These observations point to the intricate relationship between our ability to infer conclusions and the experimental design employed. Finally, this comprehensive and up-to-date overview of the effects of nanomaterials on plant systems raises the question of whether nanomaterials will lead to incremental yield gains by replacing current inputs with nanotechnology-based ones, such as the controlled release of fertilizers and pesticides, or will disrupt agriculture by attacking problems so far not practically addressed, such as hacking plant stress and defence mechanisms or modulating metabolism and photosystems. (AU) | |
| FAPESP's process: | 20/11178-9 - CaMov - characterization of calcium foliar uptake, and translocation to fruits: searching for mobile sources of calcium |
| Grantee: | Hudson Wallace Pereira de Carvalho |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/16375-4 - Effects of foliar application of La and Ce on soybean |
| Grantee: | Eduardo Santos |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 16/50014-6 - Tailoring oxide based nanoparticles for the mineral nutrition of plants |
| Grantee: | Hudson Wallace Pereira de Carvalho |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/21004-5 - Agriculture, micro/nanotechnology and environment: from evaluation of the mechanisms of action to studies of transport and toxicity |
| Grantee: | Leonardo Fernandes Fraceto |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/11546-8 - Efficiency of foliar application of different sources of calcium in tomatoes: understanding and bypassing low phloem mobility |
| Grantee: | Eduardo Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 20/07721-9 - Time-resolved element mapping and characterization of storage proteins during soybean seeds development: a bottom-up strategy to increase protein content and quality |
| Grantee: | Gabriel Sgarbiero Montanha |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |