Fungicidal Effects of Plasma and Radio-Wave Pre-treatments on Seeds of Grain Crops and Legumes

Филатова, И. И.; Ажаронок, В. В.; Shik, A. S.; Antoniuk, Alexandra; Terletskaya, Natalia

doi:10.1007/978-94-007-2852-3_36

Cited by 25 publications

(17 citation statements)

References 11 publications

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“…Significant progress in the use of cold plasma in agriculture has been observed in the last 20 years. Many studies reported possible positive effects of CP treatment on seed and grain production, indicating that CP treatment can stimulate germination, improve seedling vigour and growth dynamics, and also significantly inhibit pathogen growth by reducing surface colonisation [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. CP treatment affects different morphological, physiological and biochemical properties of the seeds [ 40 ] and can therefore significantly influence the overall plant production.…”

Section: Discussionmentioning

confidence: 99%

Cold Plasma Affects Germination and Fungal Community Structure of Buckwheat Seeds

Mravlje

Regvar

Starič

et al. 2021

Plants

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Crop seeds are frequently colonised by fungi from the field or storage places. Some fungi can cause plant diseases or produce mycotoxins, compromising the use of seeds as seeding material, food or feed. We have investigated the effects of cold plasma (CP) on seed germination and diversity of seed-borne fungi in common and Tartary buckwheat. The seeds were treated with CP for 15, 30, 45, 60, 90, and 120 s in a low-pressure radiofrequency system using oxygen as the feed gas. The fungi from the seed surface and fungal endophytes were isolated using potato dextrose agar plates. After identification by molecular methods, the frequency and diversity of fungal strains were compared between CP treated and chemically surface-sterilised (30% of H2O2) seeds. CP treatments above 60 s negatively affected the germination of both buckwheat species. A significant reduction in fungal frequency and diversity was observed after 90 s and 120 s in common and Tartary buckwheat, respectively. The filamentous fungi of genera Alternaria and Epicoccum proved to be the most resistant to CP. The results of our study indicate that CP treatment used in our study may be applicable in postharvest and food production, but not for further seed sowing.

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Section: Discussionmentioning

confidence: 99%

Cold Plasma Affects Germination and Fungal Community Structure of Buckwheat Seeds

Mravlje

Regvar

Starič

et al. 2021

Plants

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“…Filatova et al treated blue lupine ( Lupinus angustifolius ), soy, honey clover and Galega ( Gelega virginiana ) seeds with 5.28 MHz air plasma at low pressure (0.3–0.7 Torr) and also exposed to a high frequency electromagnetic field . They observed 10–20% increase in seed germination and crop viability for steadfast seeds (soy, honey clover and catgut (Galega)).…”

Section: Seed Treatments Using Non‐thermal Plasmamentioning

confidence: 99%

Non-Thermal Plasma Treatment of Agricultural Seeds for Stimulation of Germination, Removal of Surface Contamination and Other Benefits: A Review

Randeniya

Groot

2015

Plasma Process. Polym.

201

148

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The presence of pathogens and other stresses at germination and seedling stages affect the successful establishment of crops. The use of non-thermal plasma is a new approach to reduce such stresses. Plasma can interact with seeds and change their surface characteristics by etching, introducing functional groups and coating with exotic materials. Emerging evidence indicate that plasma treatment of seeds can enhance germination and seedling growth in crops by removal of microbial layers, changes in water uptake and other changes. Here, we review the status of research and show the potential role that plasma technology can play in addressing the challenges in food production. Major progress is possible by plasma treatments at or near atmospheric pressure where batch processing of large seed samples is possible.

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“…The effect of plasma on various foodcontaminating microorganisms such as Escherichia coli and Listeria monocytogenes has been studied previously Deng et al, 2007;Yu et al, 2007;Yun et al, 2010. Selcuk et al 2008 reported that sterilization by plasma may offer an alternative to current seed disinfection methods; however, in the field of agriculture, there are few reports on the inactivation effect of plasma on plant pathogens Filatova et al, 2012;Iseki et al, 2010;Selcuk et al, 2008 . Especially, there are no reports in regard to the inactivation of seed-borne plant pathogenic bacteria by plasma.…”

Section: Damage To X Campestris By Plasma Treatmentmentioning

confidence: 99%

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

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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Fungicidal Effects of Plasma and Radio-Wave Pre-treatments on Seeds of Grain Crops and Legumes

Cited by 25 publications

References 11 publications

Cold Plasma Affects Germination and Fungal Community Structure of Buckwheat Seeds

Cold Plasma Affects Germination and Fungal Community Structure of Buckwheat Seeds

Non-Thermal Plasma Treatment of Agricultural Seeds for Stimulation of Germination, Removal of Surface Contamination and Other Benefits: A Review

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

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