植物研究2011，Vol.31Issue(6)：680-685,6.
铝胁迫下北美车前和车前生长及叶绿素荧光特性的比较研究
Comparison of Growth and Chlorophyll Fluorescence Characteristics Between Plantago virginica and P.asiatica under Aluminum Stress
摘要
Abstract
The present study is aimed at comparing the differences in growth responses and chlorophyll fluorescence characteristics between exotic invasive species Plantago virginica and native species P. Asiatica under various concentrations of Al3 + stress (100, 500, 800 and 2 000 mg · L-1) along with different durations (0, 10, 20 and 30 d). The results showed that root/shoot ratio increased slightly under low concentration of aluminum (100 mg · L -1 ) and began to decrease significantly at over moderate concentration (500 mg · L-1 ) ; leaf chlorophyll a and chlorophyll b showed less change under low concentration of aluminum, but decreased obviously with the increases in Al3 + concentration and treatment duration. Measurements of chlorophyll fluorescence parameters revealed that Fv/Fm, ΦpsⅡ and Fv/Fo increased slightly under low concentration of aluminum, and decreased obviously with the increases in Al3 + concentration and duration. The decreases in root/shoot ratio, chlorophyll a and chloraphyll b, Fv/Fm,ΦpsⅡ and Fv/Fo of P. Virginica was less than those of P. Asiatica, indicating that the exotic invasive P. Virginica had greater potential to alleviate aluminum stress through the mechanism of physiological defense , compared with the native P. Virginica.关键词
铝胁迫/北美车前/车前/生长/叶绿素含量/叶绿素荧光Key words
aluminum stress/Plantago virginica/P. Asiatica/growth/chlorophll content/chlorophll fluorescence分类
农业科技引用本文复制引用
陈香,胡雪华,肖宜安,陆耀东,李蕴..铝胁迫下北美车前和车前生长及叶绿素荧光特性的比较研究[J].植物研究,2011,31(6):680-685,6.基金项目
江西省教育厅科学技术研究项目(GJJ09660) （GJJ09660）
井冈山生态环境研究中心开放基金项目(EERC0501) （EERC0501）
江西省科学技术厅支撑计划项目(2009ZDN10400) （2009ZDN10400）
林业公益性行业科研专项项目(201004042) （201004042）
广东省农业攻关项目(2007B020813006) （2007B020813006）
