Use of magnesium nanomaterials in plants and crop pathogens

Salas‐Leiva, Joan; Luna-Velasco, Antonia; Salas‐Leiva, Dayana E.

doi:10.1007/s11051-021-05337-8

Cited by 9 publications

(9 citation statements)

References 173 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In summary, 1.25–10 mg/mL n -MgO and m / n -MgO are suitable for seed nanopriming as they exhibit a high germination rate (>87.5%). This is because the nanomaterials can penetrate into the seed coat and thus enhance water uptake within the seeds, which in turn resulted in faster or higher germination rate and greater biomass production . However, nanomaterials with concentrations higher than 10 mg/mL should be avoided because they can induce oxidative stress to plants and cause cell death.…”

Section: Resultsmentioning

confidence: 99%

“…Several studies revealed that n -MgO and nano-iron oxide concentrations promote plant growth at a lower concentration but demoted the plant growth at a higher concentration. ,, The reason may be that the sensitivity and metabolic threshold of maize have different physiological responses to different nanomaterial concentrations. The nanomaterials might undergo biotransformation, biomodification, and/or bioaccumulation, thus forming hazardous compounds that induce varied oxidative stress to plants . By referring to Figure , it is worth mentioning that 2.5–20 mg/mL n -MgO demonstrated a negative effect on root development significantly, where shorter root length was found at higher n -MgO concentrations.…”

Section: Resultsmentioning

confidence: 99%

“…The nanomaterials might undergo biotransformation, biomodification, and/or bioaccumulation, thus forming hazardous compounds that induce varied oxidative stress to plants. 68 By referring to Figure 12, it is worth mentioning that 2.5−20 mg/mL n-MgO demonstrated a negative effect on root development significantly, where shorter root length was found at higher n-MgO concentrations. The reason might be that the number of vascular bundles and size of stele decrease when the plant is treated with a high concentration n-MgO, resulting in the reduction of plant growth.…”

Section: Time Inhibition Assaymentioning

confidence: 99%

“…This is because the nanomaterials can penetrate into the seed coat and thus enhance water uptake within the seeds, 67 which in turn resulted in faster or higher germination rate and greater biomass production. 68 However, nanomaterials with concentrations higher than 10 mg/mL should be avoided because they can induce oxidative stress to plants and cause cell death. Besides, Figure 12 summarizes the shoot and root length of positive control, negative control, and nanomaterial-treated maize seedlings after 7 days of growth.…”

Section: Time Inhibition Assaymentioning

confidence: 99%

See 3 more Smart Citations

Dual Functions of a Hybrid Magnetic Magnesium Oxide Nanocomposite as a Fungicide and Plant Growth Promoter in Agriculture Applications

Wee,

Chan,

Law

2023

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

The use of nanometal oxides in nanoagronomy has garnered considerable attention due to their excellent antifungal and plant growth promotion properties. Hybrid nanometal oxides, which combine the strengths of individual nanomaterials, have emerged as a promising class of materials. In this study, nanomagnesium oxide (n-MgO) and hybrid magnetic nanomagnesium oxide (m/n-MgO) were successfully synthesized via the ultrasound-mediated sol–gel method. Characterization results, including TGA, XRD, VSM, and FTIR, confirmed the successful synthesis of m/n-MgO. Both n-MgO and m/n-MgO underwent antifungal assays and plant growth promotion ability studies, benchmarked against the conventional fungicide–copper oxychloride. This study bridges a significant gap by simultaneously reporting the antifungal properties of both n-MgO and m/n-MgO and their impact on plant growth. The disc diffusion assay suggested that the antifungal activity of n-MgO and m/n-MgO against F. oxysporum was inversely related to the particle size. Notably, n-MgO exhibited superior antifungal performance (lower minimum inhibitory concentration (MIC)) and sustained efficacy compared with m/n-MgO, owing to distinct antifungal mechanisms. Nanorod-shaped MgO, with a smaller size (8.24 ± 5.61 nm) and higher aspect ratio, allowed them to penetrate the fungal cell wall and cause intercellular damage. In contrast, cubical m/n-MgO, with a larger size (20.95 ± 9.99 nm) and lower aspect ratio, accumulate on the fungal cell wall surface, disrupting the wall integrity, albeit less effectively against F. oxysporum. Moreover, in plant growth promotion studies, m/n-MgO-treated samples exhibited a 15.7% stronger promotion effect compared to n-MgO at their respective MICs. In addition, both n-MgO and m/n-MgO outperformed copper oxychloride in terms of antifungal and plant growth promoting activities. Thus, m/n-MgO presents a promising alternative to conventional copper-based fungicides, offering dual functionality as a fungicide and plant growth promoter, while the study also delves into the antifungal mechanisms at the intracellular level, enhancing its novelty.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Time Inhibition Assaymentioning

confidence: 99%

Section: Time Inhibition Assaymentioning

confidence: 99%

See 2 more Smart Citations

Dual Functions of a Hybrid Magnetic Magnesium Oxide Nanocomposite as a Fungicide and Plant Growth Promoter in Agriculture Applications

Wee,

Chan,

Law

2023

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

show abstract

“…Recently, MgONPs were reported by Tamil Elakkiya et al (2020) to have the ability to increase chlorophyll content by six times. Nano-fertilizers of different metal oxides have the advantage of reducing nutrient losses from plants due to leaching or volatilization, high absorption, and relatively high degradability in comparison to conventional fertilizers ( Huang et al, 2018 ; Salas-Leiva et al, 2021 ). Manganese (Mn), which is an important micronutrient for plant growth, helps to sustain the metabolic role within plants.…”

Section: Introductionmentioning

confidence: 99%

Bacteriophage-mediated biosynthesis of MnO2NPs and MgONPs and their role in the protection of plants from bacterial pathogens

et al. 2023

View full text Add to dashboard Cite

IntroductionXanthomonas oryzae pv. oryzae (Xoo) is the plant pathogen of Bacterial Leaf Blight (BLB), which causes yield loss in rice.MethodsIn this study, the lysate of Xoo bacteriophage X3 was used to mediate the bio-synthesis of MgO and MnO2. The physiochemical features of MgONPs and MnO2NPs were observed via Ultraviolet - Visible spectroscopy (UV–Vis), X-ray diffraction (XRD), Transmission/Scanning electron microscopy (TEM/SEM), Energy dispersive spectrum (EDS), and Fourier-transform infrared spectrum (FTIR). The impact of nanoparticles on plant growth and bacterial leaf blight disease were evaluated. Chlorophyll fluorescence was used to determine whether the nanoparticles application were toxic to the plants.ResultsAn absorption peak of 215 and 230 nm for MgO and MnO2, respectively, confirmed nanoparticle formation via UV–Vis. The crystalline nature of the nanoparticles was detected by the analysis of XRD. Bacteriological tests indicated that MgONPs and MnO2NPs sized 12.5 and 9.8 nm, respectively, had strong in vitro antibacterial effects on rice bacterial blight pathogen, Xoo. MnO2NPs were found to have the most significant antagonist effect on nutrient agar plates, while MgONPs had the most significant impact on bacterial growth in nutrient broth and on cellular efflux. Furthermore, no toxicity to plants was observed for MgONPs and MnO2NPs, indeed, MgONPs at 200 μg/mL significantly increased the quantum efficiency of PSII photochemistry on the model plant, Arabidopsis, in light (ΦPSII) compared to other interactions. Additionally, significant suppression of BLB was noted in rice seedlings amended with the synthesized MgONPs and MnO2NPs. MnO2NPs showed promotion of plant growth in the presence of Xoo compared to MgONPs.ConclusionAn effective alternative for the biological production of MgONPs and MnO2NPs was reported, which serves as an effective substitute to control plant bacterial disease with no phytotoxic effect.

show abstract

Functionalized Nanomaterials for Detecting Environmental Pollutants

Dave,

Pandey,

Jain

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

The environment consists of wide diversity, of which, an integral and most diversifying part is the living organisms, and hence it is imperative to design novel strategies that could alleviate pollutants and detect them at very minute levels. The functionalization of nanomaterials provides a very facile and efficient tool for the design of robust sensors that could detect pollutants that contaminate air, water, and soil. Because of their nanoscale size, these materials have enhanced surface‐to‐volume ratio, which in turn provide more reaction sites for the analyte interaction and enables highly specific and sensitive detection. Different nanomaterials like metal/metal oxide nanoparticles, quantum dots, carbon‐based nanomaterials, and miscellaneous nanomaterials like polymer, dendrimers, metal‐organic frameworks are functionalized with suitable ligands for efficient detection of a wide range of pollutants such as heavy metals, pesticides, industrial wastes, volatile organic compounds, toxic gases, and environmental pathogens with efficient level of sensitivity. In this review, we will briefly discuss different types of functionalized nanomaterials, strategies adopted for their functionalization, detection methodologies pursued for specific sensing and detection of different types of pollutants and their critical analysis, and future outlook.

show abstract

Use of magnesium nanomaterials in plants and crop pathogens

Cited by 9 publications

References 173 publications

Dual Functions of a Hybrid Magnetic Magnesium Oxide Nanocomposite as a Fungicide and Plant Growth Promoter in Agriculture Applications

Dual Functions of a Hybrid Magnetic Magnesium Oxide Nanocomposite as a Fungicide and Plant Growth Promoter in Agriculture Applications

Bacteriophage-mediated biosynthesis of MnO2NPs and MgONPs and their role in the protection of plants from bacterial pathogens

Functionalized Nanomaterials for Detecting Environmental Pollutants

Contact Info

Product

Resources

About