title: Seed disinfection effect of atmospheric pressure plasma and low pressure plasma on Rhizoctonia solani.
abstract: Gas plasma generated and applied under two different systems, atmospheric pressure plasma and low pressure plasma, was used to investigate the inactivation efficacy on the seedborne pathogenic fungus, Rhizoctonia solani, which had been artificially introduced to brassicaceous seeds. Treatment with atmospheric plasma for 10 min markedly reduced the R. solani survival rate from 100% to 3% but delayed seed germination. The low pressure plasma treatment reduced the fungal survival rate from 83% to 1.7% after 10 min and the inactivation effect was dependent on the treatment time. The seed germination rate after treatment with the low pressure plasma was not significantly different from that of untreated seeds. The air temperature around the seeds in the low pressure system was lower than that of the atmospheric system. These results suggested that gas plasma treatment under low pressure could be effective in disinfecting the seeds without damaging them.
authors: Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture.
authors: Terumi
authors: T
authors: Nishioka
authors: Yuichiro
authors: Y
authors: Takai
authors: Mitsuo
authors: M
authors: Kawaradani
authors: Kiyotsugu
authors: K
authors: Okada
authors: Hideo
authors: H
authors: Tanimoto
authors: Tatsuya
authors: T
authors: Misawa
authors: Shinichi
authors: S
authors: Kusakari
mesh_terms: D001937:Brassica / Q000187:drug effects* / Q000254:growth & development / Q000382:microbiology; D004203:Disinfection / Q000295:instrumentation / Q000379:methods*; D018525:Germination / Q000187:drug effects; D058626:Plasma Gases / Q000494:pharmacology*; D011312:Pressure; D012232:Rhizoctonia / Q000187:drug effects* / Q000254:growth & development; D012639:Seeds / Q000187:drug effects* / Q000254:growth & development / Q000382:microbiology; D013696:Temperature; D013997:Time Factors
chemical_list: D058626:Plasma Gases