Bormashenko Edward, Shapira Yekaterina, Grynyov Roman, Whyman Gene, Bormashenko Yelena, Drori Elyashiv
Ariel University, Physics Faculty, POB 3, 40700, Ariel, Israel Ariel University, Chemical Engineering and Biotechnology Faculty, POB 3, 40700, Ariel, Israel
Ariel University, Chemical Engineering and Biotechnology Faculty, POB 3, 40700, Ariel, Israel.
J Exp Bot. 2015 Jul;66(13):4013-21. doi: 10.1093/jxb/erv206. Epub 2015 May 6.
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.
研究了冷射频空气等离子体对菜豆（Phaseolus vulgaris）润湿性和吸水性的影响。阐明了等离子体对子叶和种皮（外种皮）润湿性的影响。结果表明，当子叶和构成种皮的组织分别暴露于等离子体时，冷等离子体处理会导致它们亲水化。相比之下，当整个菜豆暴露于等离子体处理时，冷等离子体仅使菜豆的外表面亲水化。研究了经等离子体处理的菜豆的吸水性。等离子体处理显著加速了水分吸收。确定了珠孔在吸水过程中的关键作用。结果表明，经等离子体处理、未处理和抽真空的样品最终发芽率几乎相同。然而，经等离子体处理的样品发芽速度明显更高。还阐明了冷等离子体处理中涉及的抽真空对发芽的影响。
