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不同逆境对玉米幼苗根系活力及硝酸还原酶活性的影响
引用本文:斯琴巴特尔,吴红英.不同逆境对玉米幼苗根系活力及硝酸还原酶活性的影响[J].干旱地区农业研究,2001,19(2):67-70.
作者姓名:斯琴巴特尔  吴红英
作者单位:1. 内蒙古师范大学生物系,
2. 内蒙古节水农业工程研究中心,
基金项目:内蒙古教育厅重大科研课题(ZD980805)资助项目
摘    要:用等渗的15%PEG-6000、72mmol/L NaCI和72mmol/L NaHCO3溶液分别模拟干旱、盐和盐碱逆境来处理玉米幼苗。实验结果表明,经干旱、盐碱逆境胁迫处理后,玉米幼苗根系还原活力比对照分别提高8.4%、7.45和5.6%,根系硝酸还原酶活性分别比对照提高3.2%、69.7%和290.4%,叶片硝酸还原酶活性分别比对照下降67.7%、63.3%和59.3%。

关 键 词:玉米  逆境  根系活力  硝酸还原酶  幼苗
文章编号:1000-7601(2001)02-0067-04
修稿时间:2000年12月29

Effect of different stress on roots activity and nitrate reductase activity in Zea mays L.
Sechenbater,WU Hong-ying.Effect of different stress on roots activity and nitrate reductase activity in Zea mays L.[J].Agricultural Research in the Arid Areas,2001,19(2):67-70.
Authors:Sechenbater  WU Hong-ying
Abstract:The drought stress, salt stress and alkaline stress were imitated by isosmotic solution of 15%PEG-6000, 72 mmol/L NaCl and 72 mmol/L NaHCO\-3 on roots' activity and nitrate reductase activity in Zea mays L.. The experiment results showed that the root activity of Zea mays seedling was increased by 8.4%,7.4% and 5.6%,the root nitrate reductase was increased by 3.2%,69.7% and 290.4%,leaves nitrate reductase activity was decreased by 67.7%,63.3% and 59.3% respectly than control under different stress.
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