Effect of Foliar Application of Nano-selenium on the Anatomical Characteristics of Date Palm Phoenix dactylifera L. Barhi Cultivar under Salt Stress

Mahdi, Ali S.; Abd, Abdulkareem M.; Awad, Khairullah M.

doi:10.37077/25200860.2022.35.2.24

Cited by 3 publications

(2 citation statements)

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“…These findings are consistent with those reported by the authors of [ 53 ], who found that Zn and Se are crucial for promoting the chlorophyll scale and relieving all harmful outcomes caused by abiotic stress. In addition, Se-NPs improved the vascular bundle dimensions and thickness of mesophyll, xylem, and phloem, as well as the thickness of the lower and upper epidermis of Date Palm plants under salinity stress [ 54 ]. However, all anatomical characteristics decreased in the control plants.…”

Section: Discussionmentioning

confidence: 99%

Synergistic Influence of Arbuscular mycorrhizal Fungi Inoculation with Nanoparticle Foliar Application Enhances Chili (Capsicum annuum L.) Antioxidant Enzymes, Anatomical Characteristics, and Productivity under Cold-Stress Conditions

Sayed,

Desoukey,

Desouky

et al. 2024

Plants

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In this study, we aimed to evaluate the effects of Arbuscular mycorrhiza fungus (AMF) inoculation, foliar application of zinc oxide and selenium nanoparticles (ZnO-NPs and Se-NPs), and their combined interactions on the growth and productivity of chili pepper under cold-stress conditions. Two field experiments were successfully conducted during the winter seasons of 2021 and 2022 in an experimental field at the Faculty of Agriculture, Cairo University, Giza, Egypt. The results showed that, under cold stress, the combination of AMF inoculation and ZnO-NPs + Se-NPs as a foliar spray increased the average fruit weight by 92.4% and 98.7%, and the number of fruits by 34.6% and 54.8 compared to control treatment in the 2021 and 2022 seasons, respectively. Additionally, the combination of AMF and a mixture of nanoparticles (ZnO-NPs + Se-NPs) significantly increased the total marketable yield by 95.8% and 94.7% compared to the control, which recorded values of 2.4 and 1.9 kg m−2 in the 2021 and 2022 seasons, respectively. Furthermore, the combination of AMF and a mixture of nanoparticles (ZnO-NPs + Se-NPs) showed the highest total content of ascorbic acid and capsaicin in chili fruits compared to the other treatments. The combination of AMF and a mixture of nanoparticles (ZnO-NPs + Se-NPs) stimulated the accumulation of peroxidase (POD) and nitrogen glutamate dehydrogenase (GDH) while decreasing hydrogen peroxide (H2O2) and lipid peroxidation (MDA) contents. SDS analysis revealed that the application of ZnO-NPs, Se-NPs, AMF + ZnO-NPs, and AMF + ZnO-NPs + Se-NPs induced the emergence of new protein bands and reconstitution of those damaged by cold stress. Regarding histological structure, the combination of AMF inoculation and ZnO-NPs + Se-NPs as a foliar spray showed an enhancement in the thickness of grana thylakoids and increased the number of chloroplasts. Intriguingly, the findings showed that AMF and a mixture of nanoparticles (ZnO-NPs + Se-NPs) could offer guidance for increasing plant development and productivity under cold-stress conditions.

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Section: Discussionmentioning

confidence: 99%

Synergistic Influence of Arbuscular mycorrhizal Fungi Inoculation with Nanoparticle Foliar Application Enhances Chili (Capsicum annuum L.) Antioxidant Enzymes, Anatomical Characteristics, and Productivity under Cold-Stress Conditions

Sayed,

Desoukey,

Desouky

et al. 2024

Plants

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“…The date palm is a hardy fruit crop species that grows well in arid and semiarid climates. Its capacity to store particular metabolites within its cells, which provide tolerance to a range of environmental challenges, such as heat, salt, drought and damaging radiations, is the source of its adaptability [11][12][13]. Date palms produce amino acids, including L-cysteine, ketoleucine, N-acetyl-L-aspartate, L-tyrosine and homocysteine, through their internal metabolism in response to UV-B damage.…”

Section: Introductionmentioning

confidence: 99%

Changes in Amino Acid Accumulation and Nitrogen, Phosphorus, and Potassium Concentrations in Leaves of Date Palm (Phoenix dactylifera L.) Seedlings Exposed to UV Light Stress

Swaid,

Ali

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Human activities have resulted in air pollution, which has reduced the ozone layer. The increased exposure of the Earth’s surface to the harmful ultraviolet B (UV-B) radiation has affected plants, such as date palm, retarding their growth, productivity and photosynthesis. This study aimed to determine how UV-B radiation influences changes in amino acid and nutrients N, P, and K (NPK) content in date palm leaves. Amino acids in germinated seeds subjected to various UV-B doses were quantified, and NPK analysis was performed. Results demonstrated the considerable effects of UV-B radiation on these parameters. Prolonged exposure to UV-B radiation resulted in high amino acid levels, which peaked at 8, 10 h of exposure, and the lowest values were observed after control treatment. The peak in N concentration was recorded after 4 h of exposure and declined at after 8,10 h of exposure. The levels of P increased after 2,4 h of irradiation and decreased after 6, 8 h. By contrast, K content greatly increased after 4 h of UV irradiation and slightly increased after 6,10 h of irradiation. Overall, the amino acid content of the date palm seedlings increased after 6,8 h of exposure to UV-B rays, and NPK levels initially increased after 2, 4 h of UV-B irradiation but decreased after 6,10 h of UV-B irradiation.

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Exogenous Application of Selenium Nanoparticles (Se-NPs) to Mitigate Salt Stress in Soybean-Evaluation of Physiological, Molecular and Biochemical Processes

Desouky,

Desoukey,

Abdel-Aziz

et al. 2024

J Soil Sci Plant Nutr

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Salt stress is identified as a significant abiotic stress that hampers agricultural sustainability globally. The study was carried out to investigate the potential mitigating effects of selenium nanoparticles (Se-NPs) on salt stress in soybean. Two weeks old grown soybean seedlings were subjected to salt stress conditions (4000 mg L− 1 of sea salts). The plants were foliar sprayed with Se-NPs at concentrations of 0.0, 0.5, 1.0 and 1.5 mg L− 1 twice. The first application was applied at four weeks from sowing and the second application was added after two weeks from the first application. Compared to control, Se-NPs application mitigates the negative effect of salinity on plant growth to a variable extent. This improvement may be attributed to several factors such as increased the concentrations of photosynthetic pigments, total soluble sugars and total protein. In addition, Se-NPs alleviated the adversely effect of oxidative stress by increasing the antioxidant activities and potassium contents without markedly increase in the sodium content of the soybean leaf tissues. Also, Se-NPs enhanced the biosynthesis of secondary metabolites such as total phenolic content under salinity. Moreover, Se-NPs spray significantly reinforced the development of conducting secondary tissues in the leaves and roots of the treated plants. GmHKT1 gene transcription was markedly up-regulated in salinized soybean and foliar sprayed with Se-NPs as a molecular strategy to cope with the salinity. Based on the obtained results, among the different doses of Se-NPs, soybean plants sprayed with 1.0 mg L− 1 Se-NPs showed better salt tolerance. The foliar spray of Se-NPs may be considered as a promising approach to enhance salt tolerance in soybean plants, which could have significant implications for improving agricultural sustainability in salt-affected regions.

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Effect of Foliar Application of Nano-selenium on the Anatomical Characteristics of Date Palm Phoenix dactylifera L. Barhi Cultivar under Salt Stress

Cited by 3 publications

References 0 publications

Synergistic Influence of Arbuscular mycorrhizal Fungi Inoculation with Nanoparticle Foliar Application Enhances Chili (Capsicum annuum L.) Antioxidant Enzymes, Anatomical Characteristics, and Productivity under Cold-Stress Conditions

Synergistic Influence of Arbuscular mycorrhizal Fungi Inoculation with Nanoparticle Foliar Application Enhances Chili (Capsicum annuum L.) Antioxidant Enzymes, Anatomical Characteristics, and Productivity under Cold-Stress Conditions

Changes in Amino Acid Accumulation and Nitrogen, Phosphorus, and Potassium Concentrations in Leaves of Date Palm (Phoenix dactylifera L.) Seedlings Exposed to UV Light Stress

Exogenous Application of Selenium Nanoparticles (Se-NPs) to Mitigate Salt Stress in Soybean-Evaluation of Physiological, Molecular and Biochemical Processes

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