Nanoparticle penetration and transport in living pumpkin plants: in situsubcellular identification

Corredor, Eduardo; Testillano, Pilar S.; Coronado, Marı́a-José; González‐Melendi, Pablo; Fernández-Pacheco, Rodrigo; Marquina, C.; Ibarra, M. R.; Fuente, Jesús M. de la; Rubiales, Diego; Pérez‐de‐Luque, Alejandro; Risueño, María Carmen

doi:10.1186/1471-2229-9-45

Cited by 366 publications

(189 citation statements)

References 27 publications

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“…The recorded increase in Chl a, Chl b and carotenoids was in harmony with that found by Tripathi et al (2015) in pea seedlings under Cr stress by silicon oxide nanoparticles. This enhancement may be due to that Zn plays an important role in chlorophyll synthesis (Corredor et al, 2009), chloroplast structure, photosynthetic electron transfer (Fathi et al, 2017). The recorded increase in total soluble carbohydrates and protein on priming with Nano ZnO was in accordance with the findings of Venkatachalam et al (2016) using Nano ZnO under Cd or Pb stress in Leucaena leucocephala seedlings and with those of Soliman et al (2015) using nano-iron and nano-zinc in salt stressed Moringa peregrina plants.…”

Section: Discussionsupporting

confidence: 80%

Ameliorative effect of Yeast Extract, IAA and Green-synthesized Nano Zinc Oxide on the Growth of Cu-stressed Vicia faba Seedlings

2017

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T HE EFFECT of CuSO 4 stress on some growth parameters and some metabolites in 14-dayold Vicia faba seedlings was studied. Irrigation with 150 mM CuSO 4 resulted in remarkable reduction in root length, shoot height, fresh and dry weights of root and shoot, leaf area and photosynthetic pigments (Chl a, Chl b and carotenoids), while it raised Chl a/b ratio. Total soluble carbohydrates and protein contents were significantly depleted under Cu treatment. The ameliorative role of seed priming with different concentrations of yeast extract (25, 50, or 100 %), IAA (0.1, 0.3, 0.5 mM), or the green-synthesized Nano zinc oxide with average size 61 (nm) prepared from leaf extract of Coriandrum sativum (10, 50, 100 ppm) for different periods (6 and10h for yeast and IAA, 3 and 6h for Nano ZnO were studied. Results revealed that seed priming with 50% yeast or 0.1 mM IAA for 10h showed a remarkable increase in the measured growth criteria, chla, chl b, soluble carbohydrates and proteins but diminished chl a/b ratio compared with the Cu stress treatment. Seed priming with 100 ppm Nano ZnO for 6 h exhibited the most effective treatment in mitigating the harmful effects of Cu stress on growth criteria, Chla, Chl b, soluble carbohydrates and proteins.

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Section: Discussionsupporting

confidence: 80%

Ameliorative effect of Yeast Extract, IAA and Green-synthesized Nano Zinc Oxide on the Growth of Cu-stressed Vicia faba Seedlings

2017

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“…Corredor et al found nanoparticle penetration into the first cell layer of pumpkin plants (20). In order to increase the understanding between the nanoparticles and the leaf surface, we incorporated maize leaves into a well characterized ceria suspension.…”

Section: Discussionmentioning

confidence: 99%

No Evidence for Cerium Dioxide Nanoparticle Translocation in Maize Plants

Birbaum

Brogioli

Schellenberg

et al. 2010

Environ. Sci. Technol.

252

149

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The rapidly increasing production of engineered nanoparticles has raised questions regarding their environmental impact and their mobility to overcome biological important barriers. Nanoparticles were found to cross different mammalian barriers, which is summarized under the term translocation. The present work investigates the uptake and translocation of cerium dioxide nanoparticles into maize plants as one of the major agricultural crops. Nanoparticles were exposed either as aerosol or as suspension. Our study demonstrates that 50 microgram cerium per gram leaves was either adsorbed or incorporated into maize leaves. This amount could not be removed by a washing step and did not depend on closed or open stomata investigated under dark and light exposure conditions. However, no translocation into newly grown leaves was found when cultivating the maize plants after airborne particle exposure. The use of inductively coupled mass spectrometer allowed detection limits of less than 1 nanogram cerium per gram leaf. Exposure of plants to well characterized nanoparticle suspensions in the irrigation water resulted also in no detectable translocation. These findings may indicate that the biological barriers of plants are more resistant against nanoparticle translocation than mammalian barriers.

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“…Nucleation mode particles exhibit high deposition velocities to forest canopies due to their high Brownian diffusion velocities, the large surface area of forests and enhancement of particle capture efficiencies due to leaf micro-texture . There is also evidence that nano-particles may penetrate leaves via the stomata (Burkhardt et al, 2012;Corredor et al, 2009). Actual deposition velocities (surface capture) to forests are complex functions of factors such as leaf orientation, and the key leaf characteristics (width, length and thickness) are variable by species.…”

Section: Introduction and Objectivesmentioning

confidence: 99%

Forest canopy interactions with nucleation mode particles

2014

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Abstract. Ultrafine particle size distributions through a deciduous forest canopy indicate that nucleation mode particle concentrations decline with depth into the canopy, such that number concentrations at the bottom of the canopy are an average of 16 % lower than those at the top. However, growth rates of nucleation mode particles (diameters 6-30 nm) are invariant with height within the canopy, which implies that the semi-volatile gases contributing to their growth are comparatively well-mixed through the canopy. Growth rates of nucleation mode particles during a meteorological drought year (2012) were substantially lower than during a meteorologically normal year with high soil water potential (2013). This may reflect suppression of actual biogenic volatile organic compound (BVOC) emissions by drought and thus a reduction in the production of condensable products during the drought-affected vegetation season. This hypothesis is supported by evidence that growth rates during the normal year exhibit a positive correlation with emissions of BVOC modeled on observed forest composition, leaf area index, temperature and photosynthetically active radiation (PAR), but particle growth rates during the drought-affected vegetation season are not correlated with modeled BVOC emissions. These data thus provide indirect evidence that drought stress in forests may reduce BVOC emissions and limit growth of nucleation mode particles to climate-relevant sizes.

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Nanoparticle penetration and transport in living pumpkin plants: in situsubcellular identification

Cited by 366 publications

References 27 publications

Ameliorative effect of Yeast Extract, IAA and Green-synthesized Nano Zinc Oxide on the Growth of Cu-stressed Vicia faba Seedlings

Ameliorative effect of Yeast Extract, IAA and Green-synthesized Nano Zinc Oxide on the Growth of Cu-stressed Vicia faba Seedlings

No Evidence for Cerium Dioxide Nanoparticle Translocation in Maize Plants

Forest canopy interactions with nucleation mode particles

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