Interaction of cold radiofrequency plasma with seeds of beans (Phaseolus vulgaris)

Edward Bormashenko, Yekaterina Shapira, Roman Grynyov, Gene Whyman, Yelena Bormashenko, Elyashiv Drori

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

The impact of cold radiofrequency air plasma on the wetting properties and water imbibition of beans (Phaseolus vulgaris) was studied. The influence of plasma on wetting of a cotyledon and seed coat (testa) was elucidated. It was established that cold plasma treatment leads to hydrophilization of the cotyledon and tissues constituting the testa when they are separately exposed to plasma. By contrast, when the entire bean is exposed to plasma treatment, only the external surface of the bean is hydrophilized by the cold plasma. Water imbibition by plasma-treated beans was studied. Plasma treatment markedly accelerates the water absorption. The crucial role of a micropyle in the process of water imbibition was established. It was established that the final percentage of germination was almost the same in the cases of plasma-treated, untreated, and vacuum-pumped samples. However, the speed of germination was markedly higher for the plasma-treated samples. The influence of the vacuum pumping involved in the cold plasma treatment on the germination was also clarified.

Original languageEnglish
Pages (from-to)4013-4021
Number of pages9
JournalJournal of Experimental Botany
Volume66
Issue number13
DOIs
StatePublished - 1 Jul 2015

Keywords

  • Beans
  • contact angle
  • germination
  • plasma treatment
  • water imbibition
  • wetting properties

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