Figure 2
From: Growth control of Marchantia polymorpha gemmae using nonthermal plasma irradiation
The pictures of gemmae of Marchantia polymorpha set under the SDBD device. (A–D) Pictures were taken by digital camera EOS M5 (Canon, Tokyo, Japan). (A) The gemmae on wet filter paper (approximately 2.5 mm × 2.5 mm) for SDBD plasma irradiation. Red arrow heads indicate gemmae. (B) The gemmae before set under SDBD device. (C) Top view of the gemmae set under SDBD device. (D) Side view of the gemmae set under SDBD device. (E) pH of SDBD plasma irradiated Milli-Q water in filter paper. pH was measured by LAQUAtwin-pH-22B (HORIBA Advanced Techno, Co., Ltd., Kyoto, Japan). (F) Discharge power consumed by SDBD plasma with the applied voltage. Discharge power consumed by SDBD plasma was measured by V-Q Lissajous method using a high voltage probe P6015A (Tektronix, Oregon, USA), a digital oscilloscope DS-5110B (Iwatsu, Tokyo Japan), and a capacitor of 100 nF inserted between the SDBD electrode and the ground.
