当前位置: 首页 > 文章 > 酸和铁胁迫对紫花苜蓿根系质膜H~+-ATPase活性的影响 草原与草坪 2009 (3) 12-15
Position: Home > Articles > Effect of acidity and Fe stress on the activity of H~+-ATPase in plasma membrane of alfalfa roots Grassland and Turf 2009 (3) 12-15

酸和铁胁迫对紫花苜蓿根系质膜H~+-ATPase活性的影响

作  者:
郭奇梅;孙吉雄;安渊;刘剑锋
单  位:
上海交通大学;甘肃农业大学
关键词:
紫花苜蓿;铁胁迫;质膜;H+-ATPase
摘  要:
以紫花苜蓿品种WL-525为材料,研究了在pH4.5和pH6.0的环境下,缺Fe2+和富Fe2+胁迫对紫花苜蓿根系质膜H+-ATPase活性的影响。实验结果表明:紫花苜蓿根系质膜H+-ATPase酶的活性在强酸胁迫、缺Fe2+和富Fe2+胁迫,以及酸、铁共同胁迫下均发生明显的变化,呈现出短时间胁迫,质膜H+-ATPase活性升高,然后随着处理时间的增加,酶活性呈现不同程度的下降趋势。研究结果说明,在强酸和Fe2+胁迫下,苜蓿根系质膜H+-ATPase酶的活性会发生变化,以减轻苜蓿根系受到的伤害。
译  名:
Effect of acidity and Fe stress on the activity of H~+-ATPase in plasma membrane of alfalfa roots
作  者:
GUO Qi-mei1,2,SUN Ji-xiong1,AN-Yuan2,LIU Jian-feng1,2(1.Pratacultural College of Gansu Agricultural University,Lanzhou 730070,China;2.College of Agriculture & Biology,Shanghai Jiaotong University,Shanghai 201101,China)
关键词:
alfalfa;Fe stress;plasma membrane;H+-ATPase
摘  要:
The effect of deficient Fe2+ and excessive Fe2+ on the activity of H+-ATPase in plasma membrane of alfalfa under low pH(pH4.5 and pH6.0) was studied by using Medicago sativa cv.WL No.525.The results show that the activity of H+-ATPase in plasma membrane of alfalfa root changed obviously under pH stress and Fe2+ stress(deficient Fe2+ and excessive Fe2+).The activity of H+-ATPase increased within a very short time but reduced variously along with increasing treatment time.The results indicate that the activity of H+-ATPase changed under low pH and Fe2+ stress to ease the harm by stress.

相似文章

计量
文章访问数: 0
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊