Biostimulation and Toxicity

Benavides-Mendoza, Adalberto; González-Moscoso, Magín; Ojeda-Barrios, Dámaris Leopoldina; Fuentes-Lara, Laura Olivia

doi:10.1002/9781119745884.ch14

Cited by 2 publications

(3 citation statements)

References 69 publications

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“…The modifications of the plant antioxidant system with the application of NZnO were probably related to the first phase of biostimulation with NMs, as previously explained [ 47 , 48 ]. Specifically, the increase in bioactive compounds can be explained by the fact that NPs modify the activity of the electron transport chain in mitochondria, blocking the transfer of electrons from NADH to ubiquinone, inducing oxidative stress and increasing levels of O 2− , H 2 O 2 , and malondialdehyde (MDA), a compound indicating lipid peroxidation of the membrane damage [ 50 , 70 , 71 ].…”

Section: Discussionmentioning

confidence: 60%

“…The above produces damage or modifications in cell membrane, producing cascades of signaling metabolites, changes on the redox balance, membrane potential, protein translation, and modifications in gene expression. These signals can travel between cells and produce a biostimulation response [ 47 , 48 ]. Similar response occurs when the NMs come into contact with the organelles (e.g.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Garza-Alonso

Juárez-Maldonado

González-Morales

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 99%

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Garza-Alonso

Juárez-Maldonado

González-Morales

et al. 2023

Heliyon

View full text Add to dashboard Cite

“…Furthermore, the effect of NPs on the antioxidant system of plants can be diverse. The interactions of the surface charges of the NPs cause the non-specific interaction of the cell membrane receptors and cell wall, which can lead to the following two responses: toxicity or biostimulation [95]. When biostimulation occurs, plants can accumulate higher concentrations of antioxidant compounds due to exposure to NPs.…”

Section: Impact Of As and Sio 2 Nps On Antioxidant Systemmentioning

confidence: 99%

Effect of Silicon Nanoparticles on Tomato Plants Exposed to Two Forms of Inorganic Arsenic

et al. 2022

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In the environment arsenic (As) can be found mainly as arsenite (AsIII) and arsenate (AsV), which are highly toxic and threaten food security. Currently, there is great attention on the effects of silicon dioxide nanoparticles (SiO2 NPs) on plant development, and their ability to restrict As uptake. The results show that the two forms of As negatively impacted aerial dry biomass and fruit yield. Silicon content is lower in roots than in leaves. It is observed that AsIII is the form that accumulates the most in the root; in addition, the SiO2 NPs reduce the translocation of AsV. The data show that AsIII induced a negative effect on the uptake of Ca, P, Mg, and Cu, while SiO2 NPs enhances the accumulation of Fe and Zn when exposed to AsIII. The two forms of As do not impact chlorophyll content but increases when interacting with SiO2 NPs. Antioxidant enzymes APX, CAT, and SOD are higher in roots than in leaves. Phenols, flavonoids, and glutathione increased when SiO2 NPs interacted with AsIII in roots. H2O2 increases in roots and leaves by exposure to AsV and AsIII, and its interactions with SiO2 NPs, while in the fruit, H2O2 production decreases. As for the total antioxidant capacity ABTS is observed to increase by AsIII + SiO2 NPs only in roots. The bioactive compounds of the tomato fruits are modified by the treatments and the addition of SiO2 NPs alone increase in lycopene content. Therefore, our results reveal the negative impacts of AsIII, and that SiO2 NPs can at least partially mitigate As toxicity and reduce AsV translocation in tomatoes.

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Biostimulation and Toxicity

Cited by 2 publications

References 69 publications

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Effect of Silicon Nanoparticles on Tomato Plants Exposed to Two Forms of Inorganic Arsenic

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