Physiological and toxic effects of selenium on seed germination of cowpea seedlings

Lapaz, Allan de Marcos; Santos, Luiz Felipe de Melo; Yoshida, Camila Hatsu Pereira; Heinrichs, Reges; Campos, Marcelo; Reis, André Rodrigues dos

doi:10.1590/1678-4499.20190114

Cited by 13 publications

(14 citation statements)

References 41 publications

(48 reference statements)

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“…However, other studies reported that the application of Se in low concentration causes positive effects on yield, biomass production, among other (Zhu et al, 2017). In contrast, high doses of Se cause toxicity in the plants because there is a high production of reactive oxygen species, found to inhibit growth and performance (Lapaz et al, 2019). The studies previously reported support our results that there is a decrease in grape production with higher concentrations of Se.…”

Section: Acumulación De Selenio En Los Frutossupporting

confidence: 89%

“…Phenols concentration in grape fruits increased as doses of sodium producción de biomasa, entre otros (Zhu et al, 2017). Por el contrario, altas dosis de Se causan toxicidad en las plantas ya que existe una alta producción de especies reactivas de oxígeno, que se han descubierto que inhiben el crecimiento y el rendimiento (Lapaz et al, 2019). Los estudios previamente reportados apoyan nuestros resultados sobre que existe una disminución en la producción de uva con mayores concentraciones de Se.…”

Section: Total Phenolic Flavonoids and Antioxidant Capacityunclassified

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Foliar fertilization of sodium selenite and its effects on yield and nutraceutical quality in grapevine

et al. 2021

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Selenium (Se) is an essential micronutrient for humans, but in plants, this essentiality has not been demonstrated. However, the supplementation of Se in crops has been shown to improve the yield and the quality of the edible part. The objective of this research was to evaluate the effect of Se foliar fertilization on yield, nutraceutical quality and Se accumulation in grape. Five doses of Se (Na2SeO3 at 0.25, 0.5, 0.75, 1.0 and 1.25 mg.L-1) and a control were evaluated. The results obtained showed that the application in low doses of Se increased the yield; high doses increase nutraceutical quality and induced the accumulation of Se in grapes. In conclusion, the grapevine is a crop with the potential to be biofortified and improve the quality of grape.

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Section: Acumulación De Selenio En Los Frutossupporting

confidence: 89%

Section: Total Phenolic Flavonoids and Antioxidant Capacityunclassified

Foliar fertilization of sodium selenite and its effects on yield and nutraceutical quality in grapevine

et al. 2021

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“…The lower content of chlorophylls and carotenoids impairs the use and dissipation of light energy, which can result in reduced photosynthesis (Divya et al 2018;Lapaz et al 2019). Therefore, reduction in chlorophyll content may have contributed to the lower A observed in this study (Table 1 and Fig.…”

Section: Photosynthetic Pigmentsmentioning

confidence: 76%

Methyl jasmonate modulation reduces photosynthesis and induces synthesis of phenolic compounds in sweet potatoes subjected to drought

et al. 2020

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Sweet potato [Ipomoea batatas (L.) Lam.] has wide adaptability to different climatic conditions. However, its yield can be affected by prolonged periods of drought. Application of exogenous jasmonates can modulate several physiological and biochemical processes, improving plant tolerance to abiotic stress. This study sought to evaluate the role of exogenous application of methyl jasmonate (MeJA) in attenuating the adverse effects of drought stress by physiobiochemical analyses and their impact during the early initiation of tuberous roots. The experimental design was completely randomized and arranged in a 2 × 2 factorial, comprised of two concentrations of a MeJA plant regulator [without (0 µmol•L-1) and with (13 µmol•L-1) application] and two water regimes (optimum and drought conditions, corresponding to a field capacity of 100 and 40%, respectively). Plants treated with MeJA showed a reduction in total leaf area and leaf dry biomass but increased adventitious root dry biomass. In addition, MeJA application in sweet potato plants affected photosynthetic performance and increased and antioxidant phenolic compounds, carotenoids, anthocyanins, and proline. The evaluated response mechanisms showed that the severity of drought was more prominent than the positive effects of MeJA, since the increases on antioxidant pigments and secondary metabolites were not sufficient to mitigate stress caused by drought, which was reflected in the reduced tuberous root production.

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“…The decrease in chlorophyll and carotenoid contents when HLB-infected plants were treated with the application of SeNPs at a concentration of 100 mg L −1 might be due to many reasons, such as the generation of ROS, which cause oxidative damage to the plant. It has also been reported that high amounts of selenium interface with amino acids having selenium and sulfur metabolisms and displace sulfur amino acids and proteins synthesized by them, which alter plants’ physiological and biochemical profiling [ 67 ].…”

Section: Discussionmentioning

confidence: 99%

Phytogenic Selenium Nanoparticles Elicited the Physiological, Biochemical, and Antioxidant Defense System Amelioration of Huanglongbing-Infected ‘Kinnow’ Mandarin Plants

et al. 2022

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Citrus greening or huanglongbing (HLB) is commonly known as yellow dragon disease and affects citrus production worldwide. Therefore, it has a significant impact on and deleterious effects in the agro-industrial sector. Significant efforts have been made to combat this disease and mitigate its destructive impact on citrus production, but still, there is no effective biocompatible treatment available to control HLB disorder. This study is considered the first biocompatible approach to evaluate the potential of phytogenic selenium nanoparticles (SeNPs) to improve the health of HLB-infected ‘Kinnow’ mandarin plants. Polymerase chain reactions (PCRs) with specific primers were used to detect HLB disease in ‘Kinnow’ mandarin plants, and PCR products were sequenced to identify Candidatus Liberibacter asiaticus (CLas), and accession numbers for CLas1 and CLas2, MZ851933 and MZ851934, respectively, were obtained. SeNPs were synthesized by using Allium sativum L. clove extract as a reducing, capping, and stabilizing agent and various techniques such as UV-visible spectrophotometry, energy dispersive X-rays, scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR), and X-ray diffraction analysis (XRD) were used to confirm the biogenesis of SeNPs. Different concentrations of SeNPs (25, 50, 75, and 100 mg L–1) were exogenously applied to HLB-infected ‘Kinnow’ mandarin plants and obtained spectacular results. The obtained results from the current study proved that 75 mg L–1 of SeNPs was most effective to improve the chlorophyll, carotenoids, relative water content (RWC), membrane stability index (MSI), total soluble sugar (TSS), superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), total flavonoid content (TFC), and total phenolic content (TPC) and significant decrease was observed in hydrogen peroxide (H2O2), malondialdehyde (MDA), and proline (PRO) contents of HLB-infected ‘Kinnow’ mandarin plants as compared to untreated diseased citrus plants. In conclusion, these results allow us to synthesize the SeNPs formulation as a promising management strategy to treat the HLB disease in citrus plants.

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Physiological and toxic effects of selenium on seed germination of cowpea seedlings

Cited by 13 publications

References 41 publications

Foliar fertilization of sodium selenite and its effects on yield and nutraceutical quality in grapevine

Foliar fertilization of sodium selenite and its effects on yield and nutraceutical quality in grapevine

Methyl jasmonate modulation reduces photosynthesis and induces synthesis of phenolic compounds in sweet potatoes subjected to drought

Phytogenic Selenium Nanoparticles Elicited the Physiological, Biochemical, and Antioxidant Defense System Amelioration of Huanglongbing-Infected ‘Kinnow’ Mandarin Plants

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