| 三白草科2种植物光合作用和叶绿素荧光特性的比较研究 |
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| 引用本文： | 陈翠琴,吕洪飞,黄四娣,姜波,沈宗根.三白草科2种植物光合作用和叶绿素荧光特性的比较研究[J].浙江农业学报,2011,23(4):0. |
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| 作者姓名： | 陈翠琴 吕洪飞 黄四娣 姜波 沈宗根 |
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| 作者单位： | 1.浙江师范大学 化学与生命科学学院,浙江 金华 321004；2常熟理工学院生物与食品工程系, 江苏 常熟 215500 |
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| 摘 要： | 以药用植物三白草(Saururus chinensis)和鱼腥草(Houttuynia cordata)为材料,测定了光响应、CO2响应、光合作用日变化、叶绿素含量和叶绿素荧光参数等指标,以期对这两种药用植物的人工培育提供一些光合生境方面的理论指导。结果表明,三白草和鱼腥草的光补偿点(LCP)分别为2.93和1.63 μmol·m-2·s-1,均为喜阴植物,三白草的LCP和饱和点(LSP)高于鱼腥草,CO2补偿点(CCP)和饱和点(CSP)低于鱼腥草。光合作用日变化结果显示,2种植物的净光合速率(Pn)、蒸腾速率(E)和气孔导度(Gs)变化都呈双峰型,均具有“午休”现象。三白草的叶绿素含量高于鱼腥草,其叶绿素荧光参数在高光强下显著高于鱼腥草。显然,三白草较鱼腥草的光适应性强、光合效率高、受光抑制的影响较小。因此,在栽培过程中,对生境的选取方面应使鱼腥草的遮荫强度稍高于三白草。
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| 关 键 词： | 三白草 鱼腥草 光响应 CO2响应 光合作用 叶绿素荧光 |
Comparison of photosynthetic and chlorophyll fluorescence characteristics of two species of Saururaceae |
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| CHEN Cui-qin,LU Hong-fei,HUANG Si-di,JIANG Bo,SHEN Zong-gen.Comparison of photosynthetic and chlorophyll fluorescence characteristics of two species of Saururaceae[J].Acta Agriculturae Zhejiangensis,2011,23(4):0. |
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| Authors: | CHEN Cui-qin LU Hong-fei HUANG Si-di JIANG Bo SHEN Zong-gen |
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| Institution: | 1 College of Chemistry and Life Science,Zhejiang Normal University,Jinhua 321004,China；2College of Biology and Food Engineering, Changshu College of Science and Technology, Changshu 215500, China |
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| Abstract: | Photosynthetic characteristics of Saururus chinensis and Houttuynia cordata,two Chinese traditional medicines of Saururaceae,were studied to determine their favorable cultivation conditions.Photosynthetic activity of them were assessed via measuring light response curves,CO2 response curves,diurnal changes of photosynthesis,chlorophyll fluorescence parameters and chlorophyll(Chl) content.The results showed that S.chinensis and H.cordata were both shade-tolerant species,their light compensation points(LCP) w... |
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| Keywords: | Saururus chinensis Houttuynia cordata light response curves CO2 response curves photosynthesis chlorophyll fluorescence chlorophyll fluorescence |
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