Use of titanium dioxide doped multi-wall carbon nanotubes as promoter for the growth, biochemical indices of Sesamum indicum L. under heat stress conditions

Mahmoud, Noura E.; Abdelhameed, Reda M.

doi:10.1016/j.plaphy.2023.107844

Cited by 7 publications

(4 citation statements)

References 85 publications

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“…It is noteworthy that accessions with low O/L ratios predominantly originated from countries with higher average temperatures, mostly located near the equator. This observation aligns with [ 23 ], which suggests that O/L ratios decrease under high-temperature stress.…”

Section: Discussionsupporting

confidence: 92%

Associations of the Seed Fatty Acid Composition of Sesame (Sesamum indicum L.) Germplasm with Agronomic Traits and FAD2 Variations

Kim,

Lee,

Yang

et al. 2024

Plants

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Sesame is an important oilseed crop grown for human consumption in many countries, with a high commercial value due to its high oleic/linoleic acid ratio (O/L ratio). However, its properties may vary among different accessions. In the current study, 282 sesame accessions were evaluated to determine the effects of agronomic traits and genotypes on the O/L ratio. The O/L ratio was positively correlated with the oleic acid (C18:1), stearic acid (C18:0), and myristic acid (C14:0) concentrations, as well as the capsule zone length (CZL), capsule width (CW), and capsule length (CL), and negatively correlated with the linoleic acid (C18:2) and linolenic acid (C18:3) concentrations, the days to maturity (DTM), days to flowering (DTF), and the height of the first capsule-bearing node (HFC) (p < 0.05). In addition, the O/L ratio was affected by the FAD2 haplotype, as the Hap2 and Hap3 sesame accessions had lower O/L ratios. Therefore, we suggest that the increase and decrease in the contents of C18:1 and C18:2 are associated with the FAD2 haplotype. A total of 25 agronomic traits and fatty acid compositions were compared via statistical analysis, and accessions with a high O/L ratio were selected. The results of this study can be used as a basis for further research on the development of new sesame varieties through enhancing nutritional functionality.

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Section: Discussionsupporting

confidence: 92%

Associations of the Seed Fatty Acid Composition of Sesame (Sesamum indicum L.) Germplasm with Agronomic Traits and FAD2 Variations

Kim,

Lee,

Yang

et al. 2024

Plants

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“…The incorporation of TiO 2 NPs into plants enhances the expression levels of genes related to plant antioxidative activities, aiding in combating cold stress [ 97 ]. In terms of plant growth, TiO 2 contributes positively and assists multi-walled carbon nanotubes to reduce hydrogen peroxide content by nearly half, thereby mitigating heat stress-induced damage [ 98 ].…”

Section: Metal(loid) Defense To Abiotic Stressmentioning

confidence: 99%

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Zhang,

Liu,

Song

et al. 2024

Plants

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Plants, as sessile organisms, uptake nutrients from the soil. Throughout their whole life cycle, they confront various external biotic and abiotic threats, encompassing harmful element toxicity, pathogen infection, and herbivore attack, posing risks to plant growth and production. Plants have evolved multifaceted mechanisms to cope with exogenous stress. The element defense hypothesis (EDH) theory elucidates that plants employ elements within their tissues to withstand various natural enemies. Notably, essential and non-essential trace metals and metalloids have been identified as active participants in plant defense mechanisms, especially in nanoparticle form. In this review, we compiled and synthetized recent advancements and robust evidence regarding the involvement of trace metals and metalloids in plant element defense against external stresses that include biotic stressors (such as drought, salinity, and heavy metal toxicity) and abiotic environmental stressors (such as pathogen invasion and herbivore attack). We discuss the mechanisms underlying the metals and metalloids involved in plant defense enhancement from physiological, biochemical, and molecular perspectives. By consolidating this information, this review enhances our understanding of how metals and metalloids contribute to plant element defense. Drawing on the current advances in plant elemental defense, we propose an application prospect of metals and metalloids in agricultural products to solve current issues, including soil pollution and production, for the sustainable development of agriculture. Although the studies focused on plant elemental defense have advanced, the precise mechanism under the plant defense response still needs further investigation.

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“…Previous literature reports indicate that TiO 2 NPs generate reactive anions, such as superoxides and hydroxyl radicals [ 84 ], which directly or indirectly aid in water accumulation and increase the rate of oxygen uptake, essential for rapid seed germination. According to Mahmoud and Abdelhameed (2023) [ 85 ], plants treated with 15% TiO 2 NPs and carbon nanoparticles exhibited significant increases in seed yield and weight per 1000 seeds, with enhancements of 4.42 and 1.67 times, respectively. It was observed that spraying nanoparticles on sesame leaves led to improvements in the amino acid composition of sesame seeds [ 85 ].…”

Section: Tio 2 Nps Improve Temperature Stress Tole...mentioning

confidence: 99%

“…According to Mahmoud and Abdelhameed (2023) [ 85 ], plants treated with 15% TiO 2 NPs and carbon nanoparticles exhibited significant increases in seed yield and weight per 1000 seeds, with enhancements of 4.42 and 1.67 times, respectively. It was observed that spraying nanoparticles on sesame leaves led to improvements in the amino acid composition of sesame seeds [ 85 ]. This improvement was attributed to the physicochemical properties of nanomaterials (TiO 2 NPs), allowing them to enter cells through openings in the plasma membrane and induce changes in gene expression [ 86 ].…”

Section: Tio 2 Nps Improve Temperature Stress Tole...mentioning

confidence: 99%

Physical, chemical, and biological routes of synthetic titanium dioxide nanoparticles and their crucial role in temperature stress tolerance in plants

Alabdallah,

Alluqmani,

Almarri

et al. 2024

Heliyon

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Use of titanium dioxide doped multi-wall carbon nanotubes as promoter for the growth, biochemical indices of Sesamum indicum L. under heat stress conditions

Cited by 7 publications

References 85 publications

Associations of the Seed Fatty Acid Composition of Sesame (Sesamum indicum L.) Germplasm with Agronomic Traits and FAD2 Variations

Associations of the Seed Fatty Acid Composition of Sesame (Sesamum indicum L.) Germplasm with Agronomic Traits and FAD2 Variations

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Physical, chemical, and biological routes of synthetic titanium dioxide nanoparticles and their crucial role in temperature stress tolerance in plants

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