Antioxidative activity and growth regulation of Brassicaceae induced by oxygen radical irradiation

Hayashi, Nobuya; Ono, Reoto; Shiratani, Masaharu; Yonesu, Akira

doi:10.7567/jjap.54.06gd01

Cited by 50 publications

(32 citation statements)

References 27 publications

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“…We suggest that if an alteration in the ABC mechanism took place in treatments, it must have been a slight one. In regard with thiols, Hayashi et al 16 observed that thioredoxin and glutathione production was involved in the promotion phenomenon induced by plasma, suggesting that the decrease in excess oxidative substances in a plant could boost its growth. Accordingly, we determined the quantity of GSH (Fig.…”

Section: Discussionmentioning

confidence: 99%

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Enhancement of soybean nodulation by seed treatment with non–thermal plasmas

Pérez-Pizá

Cejas

Zilli

et al. 2020

Sci Rep

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Soybean (Glycine max (L.) Merrill) is one of the most important crops worldwide providing dietary protein and vegetable oil. Most of the nitrogen required by the crop is supplied through biological n 2 fixation. Non-thermal plasma is a fast, economical, and environmental-friendly technology that can improve seed quality, plant growth, and crop yield. Soybean seeds were exposed to a dielectric barrier discharge plasma operating at atmospheric pressure air with superimposed flows of O 2 or n 2 as carrying gases. An arrangement of a thin phenolic sheet covered by polyester films was employed as an insulating barrier. We focused on the ability of plasma to improve soybean nodulation and biological nitrogen fixation. The total number of nodules and their weight were significantly higher in plants grown from treated seeds than in control. Plasma treatments incremented 1.6 fold the nitrogenase activity in nodules, while leghaemoglobin content was increased two times, indicating that nodules were fixing nitrogen more actively than control. Accordingly, the nitrogen content in nodules and the aerial part of plants increased by 64% and 23%, respectively. Our results were supported by biometrical parameters. The results suggested that different mechanisms are involved in soybean nodulation improvement. Therefore, the root contents of isoflavonoids, glutathione, auxin and cytokinin, and expansin (GmEXP1) gene expression were determined. We consider this emerging technology is a suitable pre-sowing seed treatment. Soybean (Glycine max (L.) Merrill) crop is considered a highly valuable source of protein, oil, and biofuel. With a worldwide sown area of 130 million hectares, soybean production achieved 370 million metric tons (68% of global production) in 2018-2019, up 9 percent from the previous year. Approximately 45% of this production corresponds to South American countries: Argentina, Brazil, and Paraguay 1. Growers in the main agricultural areas of the world employ chemical fertilizers as the only reliable tool for facing the increasing demand for food that accompanies the ever-growing world population 2. There is a substantial concern around the world for the optimization of alternative nitrogen sources that may help to avoid the intensification of chemical fertilizer usage. The contribution of biological nitrogen fixation (BNF) to the stock of N available for the crop results essential. The symbiotic associations between legumes and rhizobia represent the most important N 2-fixing agents in agricultural systems. Soybean is considered among the most efficient legume species regarding the ability to fix N: 58-68% of soybean plant N derives from N 2 fixation 3. Only bacteria contain the nitrogenase enzyme that can reduce N 2 to ammonium, and the major problem in maintaining a high rate of N 2 fixation is that this enzyme is oxygen-labile 4. Leghaemoglobin accumulated in the cytoplasm of infected plant cells binds to free oxygen avoiding the inactivation of nitrogenase 5. Many scientific efforts have been made in the last de...

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Section: Discussionmentioning

confidence: 99%

“…Hayashi et al 16 proposed that plant growth promotion by plasma could be explained by the enhanced production of reduction-type thiols (thioredoxin and glutathione) and polyphenols, triggered by the produced ROS. Interestingly, these thiols are critical molecules in nodulation as well.…”

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confidence: 99%

Enhancement of soybean nodulation by seed treatment with non–thermal plasmas

Pérez-Pizá

Cejas

Zilli

et al. 2020

Sci Rep

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“…The change of wetting properties and structure of the coat increases the water uptake, the permeability of nutrients, or it accelerates the root formation . Furthermore, several effects on plant hormones, enzymes such as catalase, proteins, soluble sugar, and antioxidants are possible . The plasma treatment is not only affecting the seeds, but it also affects the environmental conditions, such as the pH‐value or the introduction of nitrate and nitrous species into the surrounding water.…”

Section: Plasma Technology For and In Agriculturementioning

confidence: 99%

“…The plasma treatment is not only affecting the seeds, but it also affects the environmental conditions, such as the pH‐value or the introduction of nitrate and nitrous species into the surrounding water. All of these changes result in increasing the sprouting and germination rates, and faster initiation of germination . Finally, application of plasmas may also lead to an enhanced plant growth .…”

Section: Plasma Technology For and In Agriculturementioning

confidence: 99%

White paper on the future of plasma science in environment, for gas conversion and agriculture

Brandenburg

Bogaerts

Bongers

et al. 2018

Plasma Processes & Polymers

133

103

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Climate change, environmental pollution control, and resource utilization efficiency, as well as food security, sustainable agriculture, and water supply are among the main challenges facing society today. Expertise across different academic fields, technologies, and disciplines is needed to generate new ideas to meet these challenges. This “white paper” aims to provide a written summary by describing the main aspects and possibilities of the technology. It shows that plasma science and technology can make significant contributions to address the mentioned issues. The paper also addresses to people in the scientific community (inside and outside plasma science) to give inspiration for further work in these fields.

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“…The study revealed that plasma was effective in changing the substantial in the vigor and rate of germination, resulting in an enhancing in germination. The facts lead to higher germination that plasma could change the antioxidative activity of plant cells through the action of oxygen species and/or active nitrogen species on the seed coat (Hayashi, Ono, Shiratani, & Yonesu, ). In addition, the application of plasma on solid foods is usually limited to surface processing.…”

Section: Introductionmentioning

confidence: 99%

Development and Optimization of Cold Plasma Pretreatment for Drying on Corn Kernels

Chen

Han

et al. 2019

Journal of Food Science

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This study was conducted to optimize a process of cold plasma pretreatment for hot‐air drying on corn kernels. Effects of plasma pretreatment time (30, 40, 50 s), plasma pretreatment power (300, 400, 500 W) and drying temperature (37.5, 45, 52.5 °C) on drying time and drying rate during this process were investigated. Polynomial equations were established through a three‐factor and three‐level Box‐Behnken design and used to evaluate the optimal operational conditions for the drying process. The optimal pretreatment conditions were drying temperature at 52.5 °C, plasma pretreatment time of 50 s and plasma pretreatment power of 500 W, and the corresponding drying rate and drying time were 3.6163 (g/g h−1) and 1.29 hr, respectively. The AFM images showed that cold plasma pretreatment can change the topography of the treated surface with some micro‐holes, which explain how the plasma pretreatment can improve the drying process. Practical Application Cold plasma pretreatment can improve the efficiency of corn kernels drying. Furthermore, it has potential application for reducing energy consumption in drying. Cold plasma pretreatment could be potentially applied in grain drying.

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Antioxidative activity and growth regulation of Brassicaceae induced by oxygen radical irradiation

Cited by 50 publications

References 27 publications

Enhancement of soybean nodulation by seed treatment with non–thermal plasmas

Enhancement of soybean nodulation by seed treatment with non–thermal plasmas

White paper on the future of plasma science in environment, for gas conversion and agriculture

Development and Optimization of Cold Plasma Pretreatment for Drying on Corn Kernels

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