J4 ›› 2014, Vol. 27 ›› Issue (1): 27-33.doi: 10.3976/j.issn.1002-4026.2014.01.005

• 论文 • 上一篇    下一篇

NaCl胁迫对椒样薄荷光合作用和PSII光化学活性的影响

李哲1,吴晓青1,赵晓燕1,魏艳丽1,李纪顺1,杨合同1,2   

  1. 1.山东省科学院生物技术研究中心,山东 济南 250014; 2.山东理工大学生命科学学院,山东 淄博 250049
  • 收稿日期:2013-09-09 出版日期:2014-02-20 发布日期:2014-02-20
  • 作者简介:李哲(1984-),男,助理研究员,研究方向为耐盐植物选育栽培及耐盐机制研究。Email: lizhearthur@gmail.com
  • 基金资助:

    国际科技合作项目 (2007DFA30630);国际科技合作项目 (2011DFA30990);山东省科学院青年科学基金 (2013QN012);山东省科技发展计划项目 (2010GNC10947)

Impacts of NaCl stress on photosynthesis and PSⅡphotochemical activity of peppermint(Mentha piperita L.)

 LI Zhe1, WU Xiao-Jing1, ZHAO Xiao-Yan1, WEI Yan-Li1, LI Ji-Shun1, YANG He-Tong1,2   

  1. 1.Biotechnology Center,Shandong Academy of Sciences, Jinan 250014, China; 2.School of Life Sciences,Shandong University of Technology, Zibo 255049, China
  • Received:2013-09-09 Online:2014-02-20 Published:2014-02-20

摘要:

利用光合作用测定仪和叶绿素荧光仪研究了不同浓度NaCl 胁迫对椒样薄荷光合作用和PSII光化学活性的影响。结果表明,在NaCl胁迫下,椒样薄荷的生长和生物量呈现出了浓度依赖性的变化。在100和150 mmol/L NaCl 胁迫下,椒样薄荷能够正常生长。随着NaCl处理浓度的提高,椒样薄荷光合能力和PSII光化学活性显著下降,表明QA到QB之间的电子传递被阻断。光合作用对NaCl胁迫下植物生长和代谢的影响最为突出,PSII是光合系统中最敏感的组分,在植物光合系统对环境胁迫的应激中起着重要的作用。

关键词: 椒样薄荷, NaCl 胁迫, 光合作用, PSII光化学活性

Abstract:

We employed portable photosynthesis dectector and chlorophyll fluorometer to address the impacts of different concentrations of NaCl stress on photosynthesis and PSII photochemical activity of peppermint.Results show that concentrationdependent variation exhibits for the growth and biomass of peppermint under NaCl stress.Peppermint can normally grow under 100 and 150 mmol/L NaCl stress.Photosynthesis and PSII photochemical activity of peppermint are significantly decrease and electron transfer between QA and QB is inhibited with the increase of NaCl concentration.The impact of photosynthesis on plant growth and metabolism is quite significant under NaCl stress.PSII is the most sensitive component in a photosynthetic system,and so important in the response of photoynthesis to environmental stress.

Key words: peppermint, NaCl stress, photosynthesis, PSII photochemical activity

中图分类号: 

  • Q945.78