| 不同钙效应剂对长春花光合特性的影响 |
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| 引用本文： | 孙金春,张扬欢,温泉,张楠,唐娟,吴能表.不同钙效应剂对长春花光合特性的影响[J].西南农业大学学报,2011,33(6). |
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| 作者姓名： | 孙金春 张扬欢 温泉 张楠 唐娟 吴能表 |
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| 作者单位： | 西南大学生命科学学院;三峡库区生态环境教育部重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(30500041); 中央高校基本科研业务费专项资金资助项目(XDJK2009C195) |
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| 摘 要： | 研究了细胞质膜钙通道阻断剂氯化镧(LaCl3)、胞内IP3通道阻断剂肝素(Heparin)、胞内CaM活性抑制剂三氟啦嗪(TFP)对长春花光合作用的影响,结果发现:Ca2+通道阻断剂处理后长春花叶片净光合速率(Pn)、PSII最大量子产量(Fv/Fm)、PSⅡ实际量子产量(Yield)、电子传递速率(ETR)、光化学淬灭系数(qP)均下降,非光化学淬灭系数(qN)及Chla、Chlb、Chla+Chlb含量上升,表明Ca2+通道阻断剂对长春花的光合作用有较大影响,且不是通过加速叶片光合色素降解或抑制其合成来实现抑制叶片的光合能力;其中Heparin处理的长春花叶片相关参数变化幅度最大,表明胞内钙库通过IP3通道释放的Ca2+在长春花叶片光合作用过程中发挥了更积极的作用.
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| 关 键 词： | 钙效应剂 光合特性 长春花 叶绿素荧光 |
Effects of Different Calcium Reagents on Photosynthesis Characteristics of Catharanthus roseus |
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| SUN Jin-chun,ZHANG Yang-huan,WEN Quan,ZHANG Nan,TANG Juan,WU Neng-biao.School of Life Science,Southwest University,Chongqing ,China,.Key Laboratory of Eco-environments in Three Gorges Reservoir Region,Ministry of Education.Effects of Different Calcium Reagents on Photosynthesis Characteristics of Catharanthus roseus[J].Journal of Southwest Agricultural University,2011,33(6). |
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| Authors: | SUN Jin-chun ZHANG Yang-huan WEN Quan ZHANG Nan TANG Juan WU Neng-biaoSchool of Life Science Southwest University Chongqing China Key Laboratory of Eco-environments in Three Gorges Reservoir Region Ministry of Education |
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| Institution: | SUN Jin-chun,ZHANG Yang-huan,WEN Quan,ZHANG Nan,TANG Juan,WU Neng-biao1.School of Life Science,Southwest University,Chongqing 400715,China,2.Key Laboratory of Eco-environments in Three Gorges Reservoir Region,Ministry of Education |
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| Abstract: | The effects of LaCl3(a plasmalemma calcium channel blocker),herpain(an intracellular IP3 channel blocker) and trifluoperazine(an intracellular CaM activity inhibitor) on the photosynthesis of Catharanthus roseus were researched.All the calcium channel blockers studied decreased Pn(net photosynthesis rate),maximal PSII quantum(Fv/Fm),PSII quantum yield(Yield),relative electron transport rate(ETR) and photochemical quenching(qP) of C.roseus and increased its non-photochemical quenching(qN),chlorophyll a conce... |
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| Keywords: | calcium reagent photosynthesis characteristics Catharanthus roseus chlorophyll fluorescence |
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