Titanium dioxide nanoparticles (100–1000 mg/l) can affect vitamin E response in Arabidopsis thaliana

Szymańska, Renata; Kołodziej, Karolina; Ślesak, Ireneusz; Zimak-Piekarczyk, Paulina; Orzechowska, Aleksandra; Gabruk, Michał; Żądło, Andrzej; Habina, Iwona; Knap, Wiesław; Burda, Květoslava; Kruk, Jerzy

doi:10.1016/j.envpol.2016.03.026

Cited by 69 publications

(21 citation statements)

References 65 publications

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“…Seeds treated with TiO 2 NPs suspensions exhibited increased germination rates, enhanced root lengths or improved seedling growth of Arabidopsis thaliana (L.) Heynh. (Szymanska et al, 2016), cabbage (Andersen et al, 2016), oilseed rape or canola ( Brassica napus L.) (Mahmoodzadeh et al, 2013), corn (Andersen et al, 2016), cucumber (Servin et al, 2012), fennel ( Foeniculum vulgare Mill.) (Feizi et al, 2013), lettuce ( Lactuca sativa L.) (Andersen et al, 2016), oat ( Avena sativa L.) (Andersen et al, 2016), onion ( Allium cepa L.) (Haghighi and Teixeira da Silva, 2014), parsley ( Petroselinum crispum Mill.)…”

Section: Ti Improves Plant Performancementioning

confidence: 99%

Titanium as a Beneficial Element for Crop Production

et al. 2017

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Titanium (Ti) is considered a beneficial element for plant growth. Ti applied via roots or leaves at low concentrations has been documented to improve crop performance through stimulating the activity of certain enzymes, enhancing chlorophyll content and photosynthesis, promoting nutrient uptake, strengthening stress tolerance, and improving crop yield and quality. Commercial fertilizers containing Ti, such as Tytanit and Mg-Titanit, have been used as biostimulants for improving crop production; however, mechanisms underlying the beneficial effects still remain unclear. In this article, we propose that the beneficial roles Ti plays in plants lie in its interaction with other nutrient elements primarily iron (Fe). Fe and Ti have synergistic and antagonistic relationships. When plants experience Fe deficiency, Ti helps induce the expression of genes related to Fe acquisition, thereby enhancing Fe uptake and utilization and subsequently improving plant growth. Plants may have proteins that either specifically or nonspecifically bind with Ti. When Ti concentration is high in plants, Ti competes with Fe for ligands or proteins. The competition could be severe, resulting in Ti phytotoxicity. As a result, the beneficial effects of Ti become more pronounced during the time when plants experience low or deficient Fe supply.

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Section: Ti Improves Plant Performancementioning

confidence: 99%

Titanium as a Beneficial Element for Crop Production

et al. 2017

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“…The results of the interaction effect among the three Solanaceae crops and nanomaterials levels, herein, revealed that low and high levels of ZnO and TiO 2 nanomaterials (50 and 150 mg/L) in the two successive seasons recorded lower growth criteria compared to 100 mg/L, but generally higher than hydro-primed seedlings. The seeds primed with TiO 2 nanoparticles enhanced germination rates, promoted root lengths as well as improved seedling growth (Andersen et al, 2016;Szymanska et al, 2016). On the other hand, the promoter impact of nanoscale ZnO may be associated with Zn's activity as a precursor in the formation of auxins that increase elongation and cell division (Teale et al, 2006), thus higher transplants lengths.…”

Section: Seedlings Growth Characters As Affected By the Metal Oxide Nmentioning

confidence: 99%

Impact of synthesized metal oxide nanomaterials on seedlings production of three Solanaceae crops

Younes

Shokry

Elkady

et al. 2020

Heliyon

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A B S T R A C TProspective involvement of metal oxide nanomaterials as a prominent agriculture practice for improving existing crop production directed the present investigation for synthesizing of ZnO and TiO 2 nanomaterials as an attempt to enhance the transplants production of some Solanaceae crops. The morphological characterizations of the prepared nanomaterials indicated that the hydrothermal synthesized ZnO was produced in nanorod structure with an average aspect ratio of 7. However, SEM and TEM micrographs of microwave prepared TiO 2 evident that it has a nanoparticle structure with an average diameter of 43 nm. The BET results confirmed the high specific areas of the two prepared metal oxide nanomaterials. The two synthesized metal oxide nanomaterials were coated in gel and mixed with the seeds of eggplant, pepper and tomato crops at four concentrations 0, 50, 100 and 150 mg/L, whilst the control seeds were germinated in distilled water without gel-coating. The results pointed to the outstanding effect of TiO 2 and ZnO nanoparticles on germination characters and seedlings growth. The maximum transplants lengths, fresh and dry weight were recorded at the level 100 mg/L whatever the crop plant used. Hastening germination operation of nanomaterials-gel coated seedlings compared to control plants may be ascribed to the reduction of mean germination time and coefficient variation of the germination process besides increasing the mean germination rate and the synchrony of germination traits. Overall, better performance of growing transplants has been accredited for nanoparticles-gel coated seedlings more than the control treatments which could be efficient for the safer production of transplants in an innovative way.

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“…Because chloroplast is one of the prime sites for ROS production in plants (Tripathy & Oelmuller, 2012), nTiO 2 -induced change in ROS levels might be associated with alteration in chloroplast functioning; however, the exact mechanism is not yet clear. On the other hand, nTiO 2 has also been shown to activate biosynthesis of vitamin E, an important lipophilic antioxidant (Szymanska et al, 2016). Considering both of its pro-oxidant and antioxidant effects, nTiO 2 -mediated net change in ROS status is strictly nTiO 2 concentration dependent, and thus, nTiO 2 can regulate plant growth by modulating ROS-dependent signalling pathway(s) (Mittler, 2017).…”

Section: Introductionmentioning

confidence: 99%

Titanium Dioxide Nanoparticles Improve Growth and Enhance Tolerance of Broad Bean Plants under Saline Soil Conditions

et al. 2017

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Soil salinity is established as one of the major environmental problems, decreasing crop productivity worldwide, thereby threatening sustainable agriculture. In the present study, we evaluated the effects of titanium dioxide nanoparticles (nTiO2) for ameliorating soil salinity in broad bean, an important leguminous crop. As nTiO2 is known to have pro‐oxidant and antioxidant properties, the effects of three different nTiO2 concentrations (0·01%, 0·02% and 0·03%) were compared with respect to plant growth and stress responses. The 0·01% nTiO2 application significantly increased shoot length, leaf area and root dry weight of plants under normal conditions. These growth‐promoting effects were simultaneous with increased levels of chlorophyll b, soluble sugars and proline and enhanced activities of antioxidant enzymes. Under saline soil conditions, although proline level and enzymatic antioxidant activities were increased, plant growth significantly reduced. The 0·01% nTiO2 supplementation significantly increased the activities of enzymatic antioxidants and levels of soluble sugars, amino acids and proline in salt‐affected plants versus plants subjected to salinity alone. Thus, the increased antioxidant enzyme activities contributed to the observed reduction in hydrogen peroxide and malondialdehyde contents, while enhanced levels of proline and other metabolites contributed to osmoprotection, collectively resulting in significant plant growth improvement under salinity. Furthermore, nTiO2‐mediated positive effects were concentration dependent with 0·01% nTiO2 being the most effective, whereas 0·02% showed an intermediate response and 0·03% was almost ineffective under both control and saline soil conditions. Our findings provide a foundation for nTiO2 application in improving growth of plants cultivated on naturally contaminated saline soils. Copyright © 2017 John Wiley & Sons, Ltd.

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Titanium dioxide nanoparticles (100–1000 mg/l) can affect vitamin E response in Arabidopsis thaliana

Cited by 69 publications

References 65 publications

Titanium as a Beneficial Element for Crop Production

Titanium as a Beneficial Element for Crop Production

Impact of synthesized metal oxide nanomaterials on seedlings production of three Solanaceae crops

Titanium Dioxide Nanoparticles Improve Growth and Enhance Tolerance of Broad Bean Plants under Saline Soil Conditions

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