SUN Zhuo,LI Yadi,JI Jianwei.Response of Chlorophyll Fluorescence Parameters of Tomato Seedlings to Zn Stress[J].Northern Horticulture,2016,40(24):41-44.[doi:10.11937/bfyy.201624011]
番茄幼苗叶绿素荧光参数对锌胁迫的响应
- Title:
- Response of Chlorophyll Fluorescence Parameters of Tomato Seedlings to Zn Stress
- Keywords:
- tomato; Zn stress; chlorophyll fluorescence; chlorophyll content
- 文献标志码:
- A
- 摘要:
- 以番茄种子为试材，采用土壤基质培养方法，设置了不同锌处理浓度（10、50、100、150 μmol?L-1），以 0 μmol?L-1为对照，比较分析了不同浓度锌胁迫下番茄幼苗的根系生长、叶绿素含量以及叶片的叶绿素荧光变化。结果表明：锌处理浓度为10 μmol?L-1的番茄幼苗表现出更好的增长，而高浓度的锌对植物是有害的，可能会导致植物生长发育缓慢以及叶片萎黄病；过量的锌元素使番茄幼苗的光合系统遭到破坏，这是由于锌胁迫降低了番茄幼苗总叶绿素含量，并且提高了丙二醛（MDA）含量。
- Abstract:
- The tomato seeds were used as the test materials，by using soil culture method，different levels of Zn concentrations (10，50，100，150 μmol?L-1) were set，compared with 0 μmol?L-1，four groups of tomato seedling root growth，chlorophyll content and the change of chlorophyll fluorescence in leaf under Zn stress were analyzed.The results showed that，the tomato seedlings would be better when the Zn concentration was 10 μmol?L-1.While the high concentrations of Zn was harmful to plants，which might lead to slow growth and development of plants and the leaf chlorosis.At the same time，Zn excess would make the photosynthetic system of tomato seedlings be destroyed，which was because of the reducing of total chlorophyll content in tomato seedlings caused by Zn stress，and the content of MDA also increased.
参考文献/References:
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备注/Memo
第一作者简介：孙卓（1989-），男，硕士研究生，研究方向为农业生物环境智能化检测与控制系统。E-mail:461140401@qq.com.责任作者：纪建伟（1963-），男，博士，教授，博士生导师，现主要从事智能化检测与自动控制技术等研究工作。基金项目：2013年辽宁省教育厅优秀人才支持计划资助项目（LR2013033）。