USE OF ATMOSPHERIC PLASMA IN GERMINATION OF Hybanthus calceolaria (L.) Schulze-Menz SEEDS

Silva, Dinnara Layza da; Farias, Mikelly de Lima; Vitoriano, Jussier de Oliveira; Júnior, Clodomiro Alves; Torres, Salvador Barros

doi:10.1590/1983-21252018v31n311rc

Cited by 14 publications

(9 citation statements)

References 22 publications

(24 reference statements)

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“…These seeds, from 48 h, kept the surfaces of their coats more hydrophobic, with lower contact with water and lower and slower imbibition, which reduced the amount of leachates released to the soaking solution. Results similar to that found here were verified by Silva et al (2018), with Hybanthus calceolaria seeds treated with atmospheric plasma for different periods of exposure and imbibition. Assessing the adequacy of the conductivity test, Araújo et al (2022) observed that the release of exudates increased as the seeds were imbibed.…”

Section: Resultssupporting

confidence: 89%

“…This indicates that plasma, in all exposure times evaluated, reduced the contact angle of the seeds with the water drops, increasing their wettability. With the increase in the time of exposure to plasma, the composition of the outer layer of the seed coat may undergo chemical modifications, at the level of dysfunctions of functional groups, capable of altering the hydrophobic profile of the seed coat and, eventually, promote increased water absorption according to Silva et al (2018).…”

Section: Resultsmentioning

confidence: 99%

“…The challenge for studies involving the use of plasma on living surfaces is the adjustment of the configurations and conditions of application, as well as the materials to be altered. Research indicates that factors related to plasma application, such as seed exposure time, can decisively influence the results obtained (Silva et al, 2018;Serý et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Atmospheric plasma overcomes dormancy of Pityrocarpa moniliformis (Benth.) Luckow & R. W. Jobson seeds

et al. 2022

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Atmospheric plasma application technology consists of a fast and practical method, which has the potential to modify the surface of seeds with integumentary hardness. The aim of this research was to evaluate the effect of applying atmospheric cold plasma on Pityrocarpa moniliformis seeds, assessing its implications on the seed coat impermeability, germination and vigor. Cells were subjected to plasma for 1.5, 2.0, 3.0, 4.0 and 5.0 minutes, using seeds without any treatment as a control. After application, the seed coat wettability, imbibition curve and electrical conductivity of the soaking solution were determined. Seeds were also subjected to the germination test, and its results were used to determine viability, median, uniformity and asymmetry of germination. Seeds subjected to plasma for 5.0 and 4.0 minutes showed the lowest apparent contact angles, 64 and 61°, respectively, characterizing greater wettability of the seed coat among the treatments tested. Higher germination was observed in the treatments with plasma application when compared to the control. Atmospheric plasma application technology has the potential to be used as an accelerator of P. moniliformis seed germination.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Atmospheric plasma overcomes dormancy of Pityrocarpa moniliformis (Benth.) Luckow & R. W. Jobson seeds

et al. 2022

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“…Physical factors may have a positive effect on physiological processes occurring in plants as well as in plant seedlings. The positive effect of plasma on the processes occurring in seeds is known [168][169][170]. Ways of accelerating new root formation are also still being sought.…”

Section: Plasmamentioning

confidence: 99%

Physical Crop Postharvest Storage and Protection Methods

et al. 2021

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Sustainable and organic plant production uses natural products and natural self-regulation processes occurring in the ecosystem. The awareness is growing and the demands of consumers are higher and higher. One solution is to use various methods, as an alternative to pesticides. It is also very important to care for the stored crops after harvesting especially using non-chemical methods. The physical method of plant protection consists in treating the harmful organism with physical factors such as temperature, its same light and radiation, controlled atmosphere, special packaging, pressure, various sounds, ozone, and low-temperature plasma. The availability of effective application techniques opens up new possibilities for the storage of crops in order to maintain their health and quality for a long time. This review focuses on the analysis of physical methods of postharvest protection, especially the latest methods using ozone and low-temperature plasma. As a result, consumers of agricultural crops will be able to consume food free of insects, mycotoxins and pesticide residues.

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“…Atmospheric plasma also appears in literature as a skin hydrophilicity facilitator [12], and this could be used in the pre-cosmetic facial procedure for the cosmetic skin hydration. The use of cold plasma has facilitated the permeation of various substances (nanoencapsulated or not) in several scientific experiments [2,[13][14][15][16].…”

mentioning

confidence: 99%

Characterization of Plasma Jet Equipment Used in the Treatment of Aesthetic Affections.

RoncalliOliveiraGuerra¹,

DeMoraisCarreiro²,

DosSantosBorges³

et al. 2018

IJAR

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Currently, health professionals, more specifically in the aesthetic area, use various forms of energy-based technologies to improve the appearance of body and skin, and due to the proliferation of businesses involving the sale of plasma jet pens for aesthetic use around the world, doubts arose as to the veracity of information about the production or non-production of plasma by this type of equipment. Therefore, this study sought to analyse the characteristics and parameters of some electric arc plasma jet pens used in the market. It was verified that the studied plasma jet pens produced plasma in a filament regime with an unstable pen and generated only three chemical species: Nitrogen (N 2), Hydroxyl (OH) and ozone (O 3) isotopes; however, the general physiological effects from plasma chemical species appear to be impaired by the fact that the plasma generated by most pens is quite unstable, and the thermal effect of the electric arc created to generate the plasma may cause skin burn appearance in a few seconds; the skin burns even before the full plasma action. It was concluded that the studied pens may even be sold as "plasma jet" equipment, for their plasma production; however, due to the filamentary and unstable character of the plasma found during the operation of such pens, the authors emphasize that professionals may not be able to benefit from the general physiological effects of the main chemical species of a plasma. Thus, the superficial skin carbonization effect remains to be a therapeutic action of these pens.

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USE OF ATMOSPHERIC PLASMA IN GERMINATION OF Hybanthus calceolaria (L.) Schulze-Menz SEEDS

Cited by 14 publications

References 22 publications

Atmospheric plasma overcomes dormancy of Pityrocarpa moniliformis (Benth.) Luckow & R. W. Jobson seeds

Atmospheric plasma overcomes dormancy of Pityrocarpa moniliformis (Benth.) Luckow & R. W. Jobson seeds

Physical Crop Postharvest Storage and Protection Methods

Characterization of Plasma Jet Equipment Used in the Treatment of Aesthetic Affections.

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