长江蔬菜
長江蔬菜
장강소채
JOURNAL OF CHANGJIANG VEGETABLES
2015年
8期
34-36
,共3页
陈贵华%石岭%霍秀文%王萍
陳貴華%石嶺%霍秀文%王萍
진귀화%석령%곽수문%왕평
水杨酸(SA)%苦菜%抗氧化系统%耐盐性
水楊痠(SA)%苦菜%抗氧化繫統%耐鹽性
수양산(SA)%고채%항양화계통%내염성
Salicylic acid (SA)%Sonchus oleracers L.%Antioxidant system%Salt tolerance
以苦菜为试验材料，研究了5 mmol/L水杨酸（SA）预处理后，苦菜幼苗分别在0.6%、0.8%、1.0%NaCl溶液胁迫下5、10、15、20、25 d时抗氧化系统的变化。研究结果表明，5 mmol/L SA处理提高了盐胁迫下苦菜幼苗细胞SOD、POD的活性，抑制了CAT的活性；在盐胁迫处理后10、15 d，苦菜细胞内脯氨酸和H2O2含量分别达到峰值，并显著高于清水对照，说明SA通过诱导H2O2含量增加，提高抗氧化酶活力，缓解盐胁迫伤害，提高苦菜耐盐性。
以苦菜為試驗材料，研究瞭5 mmol/L水楊痠（SA）預處理後，苦菜幼苗分彆在0.6%、0.8%、1.0%NaCl溶液脅迫下5、10、15、20、25 d時抗氧化繫統的變化。研究結果錶明，5 mmol/L SA處理提高瞭鹽脅迫下苦菜幼苗細胞SOD、POD的活性，抑製瞭CAT的活性；在鹽脅迫處理後10、15 d，苦菜細胞內脯氨痠和H2O2含量分彆達到峰值，併顯著高于清水對照，說明SA通過誘導H2O2含量增加，提高抗氧化酶活力，緩解鹽脅迫傷害，提高苦菜耐鹽性。
이고채위시험재료，연구료5 mmol/L수양산（SA）예처리후，고채유묘분별재0.6%、0.8%、1.0%NaCl용액협박하5、10、15、20、25 d시항양화계통적변화。연구결과표명，5 mmol/L SA처리제고료염협박하고채유묘세포SOD、POD적활성，억제료CAT적활성；재염협박처리후10、15 d，고채세포내포안산화H2O2함량분별체도봉치，병현저고우청수대조，설명SA통과유도H2O2함량증가，제고항양화매활력，완해염협박상해，제고고채내염성。
Taking Sonchus oleracers L. as experimental material, we studied the variation of antioxidant system in S. oleracers L. seedlings after 5, 10, 15, 20, 25 days under 0.6%, 0.8%, 1.0% NaCl stress, which were pretreated with 5 mmol/L salicylic acid (SA). The results showed that, 5 mmol/L SA could improve SOD, POD activities and inhibit CAT activity in the cells of S. oleracers L. seedings. After 10, 15 days under salt stress, the contents of proline and H2O2 were the highest in the cells of S. oleracers L. seedlings, and were significantly higher than those of the water control treatment. Because of the increase of H2O2 content induced by SA, the activity of antioxidant enzymes was enhanced and the damage under salt stress was alleviated. Eventually, salt tolerance of S. oleracers L. was improved.
