Variation of antioxidative activity and growth enhancement of Brassicaceae induced by low-pressure oxygen plasma

被引：18
|
作者：
Ono, Reoto [1 ]
Hayashi, Nobuya [1 ]
机构：
[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Fukuoka 8168580, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2015年 / 54卷 / 06期
关键词：
SEED-GERMINATION; STERILIZATION; WHEAT; BACTERIA;
D O I：
10.7567/JJAP.54.06GD03
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The mechanism of growth enhancement induced by active oxygen species generated in an oxygen plasma is investigated. The plant growth enhancement induced by the active oxygen species would relate to an antioxidative activity, which is one of the biological responses. The amount of generated active oxygen species is varied by the oxygen gas pressure in a low-pressure RF glow discharge plasma. The antioxidative activity of sprouts of Brassicaceae induced by the oxygen plasma is maximized at pressures between 30 and 40 Pa, whereas the antioxidative activity becomes small at around 60 and 80 Pa. The pressure dependence of the antioxidative activity of sprout stems is opposite to that of the stem length of the sprouts. The growth enhancement would be induced by the increase in the concentration of active oxygen species in plants owing to the decrease in the amount of antioxidative substances. (C) 2015 The Japan Society of Applied Physics
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页数：4
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