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当前位置: 首页 > 文章 > 钙对盐胁迫下红海榄幼苗生长及膜脂过氧化的影响 安徽农业科学 2008,36 (3) 50-51+81
Position: Home > Articles > Effect of Calcium on the Growth and Lipid Peroxidation of Rhizophora stylosa Seedlings under Salt Stress Journal of Anhui Agricultural Sciences 2008,36 (3) 50-51+81

钙对盐胁迫下红海榄幼苗生长及膜脂过氧化的影响

作  者：
蓝巧武;刘华英
单  位：
广西师范大学生命科学院
关键词：
钙;盐胁迫;红海榄;超氧化物歧化酶;膜脂过氧化
摘  要：
[目的]提高红海榄抗盐胁迫的能力。[方法]用添加51、52、5 mmol/L CaCl2的培养基培养盐胁迫下的红海榄幼苗,研究钙对盐胁迫下红海榄幼苗生长及膜质过氧化的影响。[结果]根及叶片的鲜重在5 mmol/L钙处理时明显高于对照和单独盐处理,15 mmol/L钙处理达到峰值。5 mmol/L Ca2+处理根的SOD活性一直维持较高水平而达到最大值,15 mmol/L Ca2+处理叶片的SOD活性最大,4个月后25mmol/L Ca2+处理的最大,比对照和盐处理分别高28.49%和23.32%。5 mmol/L Ca2+处理根的MDA含量一直维持较低水平而达到最小值。15 mmol/L Ca2+处理叶片的MDA含量最低,2个月后明显低于其他组,仅为单独盐处理的46.98%。钙能有效提高红海榄幼苗根及叶片的鲜重和SOD活性,降低丙二醛含量,提高其耐盐性。[结论]5~15 mmol/L Ca2+有效提高了红海榄幼苗抗盐胁迫的能力。
译  名：
Effect of Calcium on the Growth and Lipid Peroxidation of Rhizophora stylosa Seedlings under Salt Stress
作  者：
LAN Qiao-wu et al(College of Life Science,Guangxi Normal University,Guilin,Guangxi 541004)
关键词：
Calcium;Salt stress;Rhizophora stylosa;Superoxide Dismutase;Lipid peroxidation
摘  要：
[Objective] The study aimed to enhance the resistance capability of Rhizophora stylosa to salt stress.[Method] The R.stylosa seedlings under salt stress was cultured on the medium added 5,15 and 25 mmol/L CaCl2 to study the effect of Ca2+ on the growth and lipid peroxidation of R.stylosa seedlings under salt stress.[Result] The fresh weights of root and leaf treated with 5 mmol/L Ca2+ were obviously higher than that in CK and the alone salt treatment,and reached peak value in the treatment with 15 mmol/L Ca2+.SOD activity in root treated with 5 mmol/L Ca2+ was always sustained at higher level and reached maximum,that in leaf treated with 15 mmol/L Ca2+ was highest and that in leaf treated with 25 mmol/L Ca2+ was highest after 4 months,being 28.49% and 23.32% higher than that in CK and salt treatment resp.MDA content in root treated with 5 mmol/L Ca2+ was always sustained at lower level and reached minimum,and that in leaf treated with 15 mmol/L Ca2+ was lowest and obviously lower than that in the other groups after 2 months,being only 46.98% of that in alone salt treatment.Ca2+ could enhance the fresh weight and SOD activity of root and leaf of R.stylosa seedlings effectively,reduce MDA content and enhance salt resistance of R.stylosa seedlings.[Conclusion] Ca2+ in 5～15 mmol/L enhanced the resistance capability of R.stylosa seedlings to salt stress effectively.

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