Cold Radiofrequency Plasma Treatment Modifies Wettability and Germination Speed of Plant Seeds

Bormashenko, Edward; Grynyov, Roman; Bormashenko, Yelena; Drori, Elyashiv

doi:10.1038/srep00741

Cited by 293 publications

(270 citation statements)

References 37 publications

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“…Our previous report Nishioka et al, 2014 indicated that the low-pressure plasma treatment under the same conditions as this study did not have significant negative effects on germination rates of brassicaceous seeds B. campestris var. amplexicaulis , and other studies have reported that plasma treatment of seeds improves their germination and sprouting process Bormashenko et al, 2012;Dhayal et al, 2006 . In this study, it was found that low-pressure plasma treatment could inactivate the important seed-borne plant pathogenic bacterium, X. campestris on seeds and damaged the bacterial cell membrane and biomolecules, such as DNA, inside the cells. The low-pressure gas plasma system will be a useful and nonchemical seed disinfection method in the future.…”

Section: Food Security Nato Sicence For Peace and Security Seriesmentioning

confidence: 64%

Low-Pressure Plasma Application for the Inactivation of the Seed-borne Pathogen Xanthomonas campestris

et al. 2016

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The aim of this study was to investigate the effect of low-pressure plasma treatment on seed disinfection and the possible mechanisms underlying this effect. Seed-borne disease refers to plant diseases that are transmitted by seeds; seed disinfection is an important technique for prevention of such diseases. In this study, the effectiveness of low-pressure plasma treatment in the inactivation of the seed-borne plant pathogenic bacterium, Xanthomonas campestris, inoculated on cruciferous seeds, was evaluated. The highest inactivation effect was observed when the treatment voltage and argon gas flow rate were 5.5 kV and 0.5 L/min, respectively. The viable cell number of X. campestris was 6.6 log cfu/seed before plasma treatment, and decreased by 3.9 log after 5 min of treatment and by 6.6 log after 40 min. Ethidium monoazide treatment and quantitative real-time PCR results indicated that both the cell membrane and target DNA region were damaged following 5 min of plasma treatment. Although both heat and ozone were generated during the plasma treatment, the contribution of both factors to the inactivation of X. campestris was small by itself in our low-pressure plasma system. Overall, we have shown that our low-pressure plasma system has great applicability to controlling plant pathogenic bacterium contamination of seeds.

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Section: Food Security Nato Sicence For Peace and Security Seriesmentioning

confidence: 64%

Low-Pressure Plasma Application for the Inactivation of the Seed-borne Pathogen Xanthomonas campestris

et al. 2016

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“…This result agreed with the findings of Bormashenko et al . who reported that cold radiofrequency air plasma treatment plasma could improve the water uptake of oat and wheat seeds23. Seeds immersed into cold plasma are subjected to an attack by oxygen radicals and are bombarded by ions resulting in seed coat erosion and etched/eroded surfaces24.…”

Section: Discussionmentioning

confidence: 99%

Effects of cold plasma treatment on seed germination and seedling growth of soybean

Jiang

Long

et al. 2014

Sci Rep

352

221

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Effects of cold plasma treatment on soybean (Glycine max L. Merr cv. Zhongdou 40) seed germination and seedling growth were studied. Seeds were pre-treated with 0, 60, 80, 100 and 120 W of cold plasma for 15 s. Results showed that plasma treatments had positive effects on seed germination and seedling growth, and treatment of 80 W had the highest stimulatory effect. Germination and vigor indices significantly increased by 14.66% and 63.33%, respectively. Seed's water uptake improved by 14.03%, and apparent contact angle decreased by 26.19%. Characteristics of seedling growth, including shoot length, shoot dry weight, root length and root dry weight, significantly increased by 13.77%, 21.95%, 21.42% and 27.51%, respectively, compared with control. The seed reserve utilization, including weight of the mobilized seed reserve, seed reserve depletion percentage and seed reserve utilization efficiency significantly improved by cold plasma treatment. In addition, soluble sugar and protein contents were 16.51% and 25.08% higher than those of the control. Compared to a 21.95% increase in shoot weight, the root weight increased by 27.51% after treatment, indicating that plasma treatment had a greater stimulatory effect on plant roots. These results indicated that cold plasma treatment might promote the growth even yield of soybean.

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“…A requirement for this behaviour is that the solid surface be chemically heterogeneous so as to allow different distributions of chemical functional groups between those that are on the surface and those buried deeper in it. This effect is associated with a variety of phenomena including the marked differences between chemisorbed and physisorbed monolayers 7 and wetting transitions 8 with implications ranging from plant growth 9 through electrovariable optical components 10 to nanofiber membranes 11 , which are chemically heterogeneous.…”

mentioning

confidence: 99%

Water tribology on graphene

et al. 2012

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Classical experiments show that the force required to slide liquid drops on surfaces increases with the resting time of the drop, t rest , and reaches a plateau typically after several minutes. Here we use the centrifugal adhesion balance to show that the lateral force required to slide a water drop on a graphene surface is practically invariant with t rest . In addition, the drop's three-phase contact line adopts a peculiar micrometric serrated form. These observations agree well with current theories that relate the time effect to deformation and molecular reorientation of the substrate surface. Such molecular re-orientation is non-existent on graphene, which is chemically homogenous. Hence, graphene appears to provide a unique tribological surface test bed for a variety of liquid drop-surface interactions.

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Cold Radiofrequency Plasma Treatment Modifies Wettability and Germination Speed of Plant Seeds

Cited by 293 publications

References 37 publications

Low-Pressure Plasma Application for the Inactivation of the Seed-borne Pathogen <i><i>Xanthomonas campestris</i></i>

Low-Pressure Plasma Application for the Inactivation of the Seed-borne Pathogen <i><i>Xanthomonas campestris</i></i>

Effects of cold plasma treatment on seed germination and seedling growth of soybean

Water tribology on graphene

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