Potential applications of nanotechnology in the agro-food sector

García, Mario A.; Forbe, Tamara; Gonzalez, Eric

doi:10.1590/s0101-20612010000300002

Cited by 127 publications

(44 citation statements)

References 43 publications

(35 reference statements)

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“…1,2 Copper ions (as Cu 2+ and Cu + ) have a long history of use as fungicides by affecting the activity of several enzymes, thereby preventing germination of fungal spores. 2 There is increased interest in copper-based nanopesticides in the market, particularly in organic farming.…”

Section: ■ Introductionmentioning

confidence: 99%

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)₂ Nanopesticide

Zhao

Huang

Keller

2017

J. Agric. Food Chem.

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Due to their unique properties, copper-based nanopesticides are emerging in the market. Thus, understanding their effect on crop plants is very important. Metabolomics can capture a snapshot of cellular metabolic responses to a stressor. We selected maize and cucumber as model plants for exposure to different doses of Cu(OH)2 nanopesticide. GC-TOF-MS-based metabolomics was employed to determine the metabolic responses of these two species. Results revealed significant differences in metabolite profile changes between maize and cucumber. Furthermore, the Cu(OH)2 nanopesticide induced metabolic reprogramming in both species, but in different manners. In maize, several intermediate metabolites of the glycolysis pathway and tricarboxylic acid cycle (TCA) were up-regulated, indicating the energy metabolism was activated. In addition, the levels of aromatic compounds (4-hydroxycinnamic acid and 1,2,4-benzenetriol) and their precursors (phenylalanine, tyrosine) were enhanced, indicating the activation of shikimate-phenylpropanoid biosynthesis in maize leaves, which is an antioxidant defense-related pathway. In cucumber, arginine and proline metabolic pathways were the most significantly altered pathway. Both species exhibited altered levels of fatty acids and polysaccharides, suggesting the cell membrane and cell wall composition may change in response to Cu(OH)2 nanopesticide. Thus, metabolomics helps to deeply understand the differential response of these plants to the same nanopesticide stressor.

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Section: ■ Introductionmentioning

confidence: 99%

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)₂ Nanopesticide

Zhao

Huang

Keller

2017

J. Agric. Food Chem.

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“…Applications of food nanotechnology can be divided into four categories: food processing and functional product improvement; delivery and release of bioactive compounds and nutraceuticals; detection of pathogens and food safety improvement; and development of packaging systems that can positively affect product quality and shelf life (García et al, 2010). Foods and food packaging using nanotechnology have already been commercialized, though the number of products is still low.…”

Section: Introductionmentioning

confidence: 99%

Acceptance of nanotechnology applications and satisfaction with food-related life in southern Chile

et al. 2014

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“…Nanotechnology in agriculture would be of interest of developing countries, promising to reduce hunger, malnutrition and child mortality. The application of nanomaterials in agriculture aims to reduce nutrient losses in fertilization and to increase yields through nutrient management (Srilatha 2011: Sharon et al 2010: Garica et al 2010Rashidi and Khosravi-Darani 2011). Several factors that influence the efficiency of fertilizers could be addressed using nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

“…Several factors that influence the efficiency of fertilizers could be addressed using nanomaterials. Nanomaterials applications in agriculture and their potential advantages are evident through reports in the literature (Srilatha 2011;Ghormade et al 2011;Garica et al 2010). For example, nanomaterials with high surface area and with appropriate sorption properties may minimize losses by reducing runoff and with slow releasing kinetics.…”

Section: Introductionmentioning

confidence: 99%

First evidence on phloem transport of nanoscale calcium oxide in groundnut using solution culture technique

et al. 2014

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Nanoscale materials, whose size typically falls below 100 nm, exhibit novel chemical, physical and biological properties which are different from their bulk counterparts. In the present investigation, we demonstrated that nanoscale calcium oxide particles (n-CaO) could transport through phloem tissue of groundnut unlike the corresponding bulk materials. n-CaO particles are prepared using sol-gel method. The size of the as prepared n-CaO measured (69.9 nm) using transmission electron microscopic technique (TEM). Results of the hydroponics experiment using solution culture technique revealed that foliar application of n-CaO at different concentrations (10, 50, 100, 500, 1,000 ppm) on groundnut plants confirmed the entry of calcium into leaves and stems through phloem compared to bulk source of calcium sprayed (CaO and CaNO 3 ). After spraying of n-CaO, calcium content in roots, shoots and leaves significantly increased. Based on visual scoring of calcium deficiency correction and calcium content in plant parts, we may establish the fact that nanoscale calcium oxide particles (size 69.9 nm) could move through phloem tissue in groundnut. This is the first report on phloem transport of nanoscale calcium oxide particles in plants and this result points to the use of nanoscale calcium oxide particles as calcium source to the plants through foliar application, agricultural crops in particular, as bulk calcium application through foliar nutrition is restricted due to its non-mobility in phloem.

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Potential applications of nanotechnology in the agro-food sector

Cited by 127 publications

References 43 publications

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)₂ Nanopesticide

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)₂ Nanopesticide

Acceptance of nanotechnology applications and satisfaction with food-related life in southern Chile

First evidence on phloem transport of nanoscale calcium oxide in groundnut using solution culture technique

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Potential applications of nanotechnology in the agro-food sector

Cited by 127 publications

References 43 publications

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)2 Nanopesticide

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)2 Nanopesticide

Acceptance of nanotechnology applications and satisfaction with food-related life in southern Chile

First evidence on phloem transport of nanoscale calcium oxide in groundnut using solution culture technique

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Product

Resources

About

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)₂ Nanopesticide

Comparative Metabolic Response between Cucumber (Cucumis sativus) and Corn (Zea mays) to a Cu(OH)₂ Nanopesticide