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当前位置: 首页 > 文章 > NaCl和Na_2CO_3处理对土荆芥和藜的生长及抗氧化酶活性的比较研究 北方园艺 2010 (8) 14-17
Position: Home > Articles > Comparative Study on the Growth and Activity of Antioxidant Enzymes Between Chenopodium ambrosioides L. and Chenopodium. album L. Under NaCl and Na_2CO_3 Treatments Northern Horticulture 2010 (8) 14-17

NaCl和Na_2CO_3处理对土荆芥和藜的生长及抗氧化酶活性的比较研究

作  者：
尹灿;邓洪平;刘长坤;赵红
单  位：
西南大学生命科学学院三峡库区生态环境教育部重点实验室
关键词：
土荆芥;藜;盐、碱胁迫;生物量分配;抗氧化酶活性
摘  要：
采用5个浓度水平的NaCl和Na2CO3溶液,分别模拟盐胁迫和碱胁迫对入侵植物土荆芥及其近缘植物藜进行浇灌处理,比较二者在2种盐胁迫下的生长以及抗氧化酶活性的变化。结果表明:土荆芥根重比和根冠比在盐胁迫下显著增加,在碱胁迫条件下则极显著降低;在各浓度梯度下,盐胁迫诱导的SOD和CAT活性均高于碱胁迫,而POD的活性仅在高浓度盐胁迫时才高于碱胁迫。表明Na2CO3胁迫对土荆芥造成的危害更大,土荆芥耐受NaCl胁迫能力强于Na2CO3胁迫。另外,近缘植物藜的根重比、根冠比在盐、碱胁迫时均呈下降趋势,抗氧化酶活性的变化也低于土荆芥,说明土荆芥比藜更能耐受盐、碱胁迫。
译  名：
Comparative Study on the Growth and Activity of Antioxidant Enzymes Between Chenopodium ambrosioides L. and Chenopodium. album L. Under NaCl and Na_2CO_3 Treatments
作  者：
YIN Can,DENG Hong-ping,LIU Chang-kun,ZHAO Hong(College of Life Sciences,Southwest University,Key Laboratory(Ministry of Education) of Eco-environments of Three Gorges Rservoir Region,Chongqing 400715)
关键词：
C.ambrosioides L.;Chenopodium.album L;salt and alkali stress;biomass allocation;antioxidant enzymes
摘  要：
Simulating the salt and alkali stress by setting five levels of concentration of NaCl and Na2CO3 solution,the experiment was conducted to make a comparative study on the growth and activity of antioxidant enzymes between the invasive plants C.ambrosioide L.and the relatives plant C.album L..The results showed that:for the C.ambrosioide L.,the root biomass ratio and the root and shoot Biomass was increased under the salt stress,but declined under the alkaline stress.In the different concentration,SOD and CAT activity under salt stress was higher than under alkaline stress,and POD activity was higher in high concentrations of salt stress than in that of alkaline stress,indicating that Na2CO3 stress caused serious damages to C.ambrosioides L.,and it had stronger tolerance to NaCl stress than Na2CO3 stress.In addition,the root biomass ratio and the root and shoot Biomass of C.album L.was declined,and the activity of antioxidant enzymes of it was lower than that of C.ambrosioides L.,indicating that C.ambrosioides L.had stronger tolerance to the salt and alkaline stress than it.

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