XU Ting,ZHOU Chuan yu,ZHOU Chao,et al.Effect of Na2CO3 Stress on Physiological and Biochemical Traits of Tomoto Seedling[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(04):71-73.
Na2CO3胁迫对番茄幼苗生理生化特性的影响
- Title:
- Effect of Na2CO3 Stress on Physiological and Biochemical Traits of Tomoto Seedling
- 文章编号:
- 1002-2767（2014）04-0071-03
- Keywords:
- Na2CO3; salt stress; tomato seedling; proline; SOD; POD; CAT
- 分类号:
- S641.2
- 文献标志码:
- A
- 摘要:
- 为进一步探究番茄的耐盐机理,采用盆栽试验法，研究了不同浓度Na2CO3胁迫对番茄幼苗脯氨酸含量、SOD、POD及CAT活性的影响。结果表明：随着盐胁迫时间及盐浓度的增加，脯氨酸含量呈现快速上升的趋势；SOD、POD和CAT活性均呈先上升高后下降的趋势。盐胁迫15 d，Na2CO3浓度为20 mmol?L-1时，SOD、POD活性达到最高值；Na2CO3浓度为5 mmol?L-1时，CAT活性达到最高值，之后均呈现下降的趋势。综上，盐胁迫条件下，番茄可调动自身抗氧化酶来提高抗盐性，但随着盐胁迫时间及浓度的增加，番茄抗氧化系统遭到破坏。
- Abstract:
- In order to explore the mechanism of salt tolerance of tomato further,a pot experiment was conducted to study the effect of different concentrations of Na2CO3 stress on proline content of tomato seedlings,as well as the effect of SOD,POD and CAT activities.The results showed that with the increase of time and concentration of salt Stress,the content of proline demonstrated a rapid upward trend,while the activities of SOD,POD and CAT showed a downward trend after rising first with the increase of time and concentration of salt stress.In the condition of salt treatment for 15 d and concentration of Na2CO3 concentration for 20 mmol?L-1,SOD,POD activity reached the highest peakvalue;When concentration of Na2CO3 was 5 mmol?L-1,CAT activity reached the highest peakvalue,then showed a downward trend.The tomato could mobilize its own antioxidant enzymes to improve the salt resistance in the condition of salt stress,but with the increase of time and concentration of salt stress,antioxidant system of tomato was destroyed.
参考文献/References:
[1]赵秋月.番茄耐盐生理的研究[D].长春：吉林农业大学,2006. [2]颜志明，孙锦，郭世荣.外源脯氨酸对NaCl胁迫下甜瓜幼苗生长和活性氧物质代谢的影响[J].江苏农业学报，2011，27（1）：141-145. [3]颜志明，魏跃，贾思振，等.盐胁迫对草莓抗氧化系统和离子吸收的影响[J].北方园艺，2013（9）：1-4. [4]龚吉蕊，张立新，赵爱芬，等.油蒿抗旱生理特性研究初报[J].中国沙漠，2002，22（4）：387-392. [5]华东师范大学.植物生理学实验指导[M].北京：人民教育出版社，1983：143144. [6]李合生.植物生理生化实验原理和技术[M].北京：高等教育出版社，2000. [7]Chance B.Methods on Enzymology[M].New York:Acasemic Press，1995：764-765. [8]赵可夫.植物抗盐生理[M].北京：中国科技出版社，1993：25-30.
相似文献/References:
[1]宋 洋,肖 晖,何云霞,等.盐碱胁迫对菊芋生长影响的研究进展[J].黑龙江农业科学,2011,(07):152.
SONG Yang,XIAO Hui,HE Yun-xia,et al.Research Progress of Effects of Saline and Alkaline Stresson Growth of Jerusalem Artichoke(Helianthus tuberosus)[J].HEILONGJIANG AGRICULTURAL SCIENCES,2011,(04):152.
备注/Memo
收稿日期：2013-12-02第一作者简介：徐婷（1983-），女，黑龙江省齐齐哈尔市人，硕士，助理研究员，从事瓜菜栽培与育种研究。E-mail：xutingslove@163.com。