CAJ | 학술논문

以耐和不耐低钾玉米自交系为材料,采用不同钾浓度的营养液进行苗期培养,分析保护酶类(SOD、POD、CAT)活性、AsA、Pro含量与MDA的关系.结果表明:耐低钾玉米自交系与不耐自交系相比,无论钾浓度高低均能保持较低的MDA含量,且与非酶性抗氧化剂AsA和渗透调节物质Pro含量增加存在一定的关系;高钾条件(3.125 mmol/L)增加CAT的活性,中钾条件(2.5 mmol/L)增强SOD活性.
이내화불내저갑옥미자교계위재료,채용불동갑농도적영양액진행묘기배양,분석보호매류(SOD、POD、CAT)활성、AsA、Pro함량여MDA적관계.결과표명:내저갑옥미자교계여불내자교계상비,무론갑농도고저균능보지교저적MDA함량,차여비매성항양화제AsA화삼투조절물질Pro함량증가존재일정적관계;고갑조건(3.125 mmol/L)증가CAT적활성,중갑조건(2.5 mmol/L)증강SOD활성.
Using tolerant and intolerant maize inbred lines as experiment materials and adopting different potassium concentration to seedling culture to analyze protection enzyme (SOD,POD,CAT) activity, the relation between content of AsA, Pro and MDA was analyzed. The results indicated that tolerant maize inbred lines could keep a lower MAD content regardless of high or low potassium concentration and had some relation with non-enzyme antioxidant ASA and increase of osmotic adjustment substance. CAT activity increased under high potassium concentration (3.125 mmol/L) and SOD activity increased under moderate potassium concentration (2.5 mmol/L) compared with intolerant maize inbred lines.