Physio-biochemical and ultrastructural impact of (Fe3O4) nanoparticles on tobacco

Alkhatib, Rami; Alkhatib, Batool; Abdo, Nour; AL-Eitan, Laith N.; Creamer, Rebecca

doi:10.1186/s12870-019-1864-1

Cited by 47 publications

(22 citation statements)

References 34 publications

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“…The nanoparticles < 50 nm from Fe- and Si-enhanced biochar-amended soil could be internalized and translocated through the symplastic pathways, according to the size exclusion limits imposed by chemical and physiological barriers of the root 49 . There have been some recent studies on the morphology of iron oxide nanoparticles within plant roots 24 . Iron in the form of an oxyhydroxide or hydrated oxide species in rice root has been found by Mössbauer spectroscopic measurement of powdered root tissue in a study by Kilcoyne et al 6 .…”

Section: Discussionmentioning

confidence: 99%

“…Transmission electron microscopy (TEM) coupled with EDS or electron energy-loss spectroscopy (EELS) analyses can be used to determine the chemical elements present and their speciation in plant tissues with high spatial resolution and sensitivity, such as a copper complex bound to a cell wall 22 , and Fe-bearing particles in the organelles and vacuoles of root cells 23 . TEM has been used to show the subcellular location of nanoparticles in plant root tissue exposed to Fe oxide nanoparticles 24 . TEM-EDS analysis of root section of Imperata cylindrica showed Fe crystalline deposits with a high concentration of Fe in the root cell wall 25 .…”

Section: Introductionmentioning

confidence: 99%

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Advanced characterization of biomineralization at plaque layer and inside rice roots amended with iron- and silica-enhanced biochar

Chen

Taherymoosavi

Cheong

et al. 2021

Sci Rep

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Application of iron (Fe)- and silica (Si)-enhanced biochar compound fertilisers (BCF) stimulates rice yield by increasing plant uptake of mineral nutrients. With alterations of the nutrient status in roots, element homeostasis (e.g., Fe) in the biochar-treated rice root was related to the formation of biominerals on the plaque layer and in the cortex of roots. However, the in situ characteristics of formed biominerals at the micron and sub-micron scale remain unknown. In this study, rice seedlings (Oryza sativa L.) were grown in paddy soil treated with BCF and conventional fertilizer, respectively, for 30 days. The biochar-induced changes in nutrient accumulation in roots, and the elemental composition, distribution and speciation of the biomineral composites formed in the biochar-treated roots at the micron and sub-micron scale, were investigated by a range of techniques. Results of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) showed that biochar treatment significantly increased concentrations of nutrients (e.g., Fe, Si, and P) inside the root. Raman mapping and vibrating sample magnetometry identified biochar particles and magnetic Fe nanoparticles associated with the roots. With Fe plaque formation, higher concentrations of FeOx− and FeOxH− anions on the root surface than the interior were detected by time-of-flight secondary ionization mass spectrometry (ToF-SIMS). Analysis of data from scanning electron microscopy energy-dispersive spectroscopy (SEM-EDS), and from scanning transmission electron microscopy (STEM) coupled with EDS or energy electron loss spectroscopy (EELS), determined that Fe(III) oxide nanoparticles were accumulated in the crystalline fraction of the plaque and were co-localized with Si and P on the root surface. Iron-rich nanoparticles (Fe–Si nanocomposites with mixed oxidation states of Fe and ferritin) in the root cortex were identified by using aberration-corrected STEM and in situ EELS analysis, confirming the biomineralization and storage of Fe in the rice root. The findings from this study highlight that the deposition of Fe-rich nanocomposites occurs with contrasting chemical speciation in the Fe plaque and cortex of the rice root. This provides an improved understanding of the element homeostasis in rice with biochar-mineral fertilization.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced characterization of biomineralization at plaque layer and inside rice roots amended with iron- and silica-enhanced biochar

Chen

Taherymoosavi

Cheong

et al. 2021

Sci Rep

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“…The dried samples were ground using a Pulverisette 14 ball mill (Fritsch GmbH, Idar-Oberstein, Germany; 0.5-mm sieve). After that, 3 g samples were placed in TFM vessels with a volume of 100 cm 3 and mineralized in 10 cm 3 65% super pure HNO 3 (Merck no. 100443.2500) in a Mars 5 Xpress (CEM Corporation, Matthews, NC, USA) microwave digestion system.…”

Section: Dpph • Radical Scavenging Activitymentioning

confidence: 99%

“…The effects of nanoparticles on plants have been the focus of many studies, which have showed their phytotoxicity or beneficial effects or demonstrated no consequential responses in the plants [2]. Still, little is known about the impacts of specific nanoparticles at given concentrations on specific plant species [3].…”

Section: Introductionmentioning

confidence: 99%

Impact of foliar application of some metal nanoparticles on antioxidant system in oakleaf lettuce seedlings

et al. 2020

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Background: Nanoparticles (NPs) serve various industrial and household purposes, and their increasing use creates an environmental hazard because of their uncontrolled release into ecosystems. An important aspect of the risk assessment of NPs is to understand their interactions with plants. The aim of this study was to examine the effect of Au (10 and 20 ppm), Ag, and Pt (20 and 40 ppm) NPs on oakleaf lettuce, with particular emphasis on plant antioxidative mechanisms. Nanoparticles were applied once on the leaves of 2-week-old lettuce seedlings, after next week laboratory analyses were performed. Results: The antioxidant potential of oakleaf lettuce seedlings sprayed with metal NPs at different concentrations was investigated. Chlorophylls, fresh and dry weight were also determined. Foliar exposure of the seedlings to metal NPs did not affect ascorbate peroxidase activity, total peroxidase activity increased after Au-NPs treatment, but decreased after applying Ag-NPs and Pt-NPs. Both concentrations of Au-NPs and Pt-NPs tested caused an increase in glutathione (GSH) content, while no NPs affected L-ascorbic acid content in the plants. Ag-NPs and Pt-NPs applied as 40 ppm solution increased total phenolics content by 17 and 15%, respectively, compared to the control. Carotenoids content increased when Ag-NPs and Au-NPs (20 and 40 ppm) and Pt-NPs (20 ppm) were applied. Plants treated with 40 ppm of Ag-NPs and Pt-NPs showed significantly higher total antioxidant capacity and higher concentration of chlorophyll a (only for Ag-NPs) than control. Pt-NPs applied as 40 ppm increased fresh weight and total dry weight of lettuce shoot. Conclusions: Results showed that the concentrations of NPs applied and various types of metal NPs had varying impact on the antioxidant status of oakleaf lettuce. Alteration of POX activity and in biosynthesis of glutathione, total phenolics, and carotenoids due to metal NPs showed that tested nanoparticles can act as stress stimuli. However, judging by the slight changes in chlorophyll concentrations and in the fresh and dry weight of the plants, and even based on the some increases in these traits after M-NPs treatment, the stress intensity was relatively low, and the plants were able to cope with its negative effects.

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“…These authors also observed that the NPs can enter into and translocate inside the plant ( Ghafariyan et al, 2013 ). Interestingly, the effects of Fe oxide NPs on plant growth and development are strongly linked to their size, as observed in hydroponics-grown tobacco plants treated with Fe 3 O 4 ( Alkhatib et al, 2019 ). Recent trials performed on hydroponic cultures also revealed that nanoscale Fe hydr(oxide) stabilized by humic compounds is a valid alternative to artificial chelates as a source of Fe ( Kulikova et al, 2017 ).…”

Section: Introductionmentioning

confidence: 96%

FePO4 NPs Are an Efficient Nutritional Source for Plants: Combination of Nano-Material Properties and Metabolic Responses to Nutritional Deficiencies

et al. 2020

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Phosphorous and iron are a macro- and micronutrient, respectively, whose low bioavailability can negatively affect crop productivity. There is ample evidence that the use of conventional P and Fe fertilizers has several environmental and economical disadvantages, but even though great expectations surround nanotechnology and its applications in the field of plant nutrition, little is known about the mechanisms underlying the uptake and use of these sub-micron particles (nanoparticles, NPs) by crop species. This work shows that cucumber and maize plants both use the nutrients borne by FePO 4 NPs more efficiently than those supplied as bulk. However, morpho-physiological parameters and nutrient content analyses reveal that while cucumber plants (a Strategy I species with regard to Fe acquisition) mainly use these NPs as a source of P, maize (a Strategy II species) uses them preferentially for Fe. TEM analyses of cucumber root specimens revealed no cell internalization of the NPs. On the other hand, electron-dense nanometric structures were evident in proximity of the root epidermal cell walls of the NP-treated plants, which after ESEM/EDAX analyses can be reasonably identified as iron-oxyhydroxide. It appears that the nutritional interaction between roots and NPs is strongly influenced by species-specific metabolic responses.

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Physio-biochemical and ultrastructural impact of (Fe3O4) nanoparticles on tobacco

Cited by 47 publications

References 34 publications

Advanced characterization of biomineralization at plaque layer and inside rice roots amended with iron- and silica-enhanced biochar

Advanced characterization of biomineralization at plaque layer and inside rice roots amended with iron- and silica-enhanced biochar

Impact of foliar application of some metal nanoparticles on antioxidant system in oakleaf lettuce seedlings

FePO4 NPs Are an Efficient Nutritional Source for Plants: Combination of Nano-Material Properties and Metabolic Responses to Nutritional Deficiencies

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