| 铁皮石斛生理生化性质的研究 |
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| 引用本文： | 张书霞,张海宾.铁皮石斛生理生化性质的研究[J].信阳师范学院学报(自然科学版),2005,18(2):176-177. |
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| 作者姓名： | 张书霞 张海宾 |
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| 作者单位： | 信阳师范学院,生命科学学院,河南,信阳,464000 |
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| 摘 要： | 对兰科植物铁皮石斛的生理生化特性进行了研究,并将其与典型的C3 植物大豆、C4 植物玉米、景天酸代谢(CAM)植物仙人掌进行了对比实验 从实验结果来看,铁皮石斛的叶绿素a/b值较低,pH变化与仙人掌非常相似:白天都是从低到高,夜里都是从高到低 有机酸含量有昼夜波动 磷酸烯醇式丙酮酸羧化酶(PEPCase)活性较大豆略高
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| 关 键 词： | 铁皮石斛 景天酸代谢 叶绿素a/b值 PEPCase活性 |
| 文章编号： | 1003-0972(2005)02-0176-02 |
Studies on the physiological and biochemical properties of Dendrobium offcinale |
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| ZHANG Shu-xia,ZHANG Hai-bin.Studies on the physiological and biochemical properties of Dendrobium offcinale[J].Journal of Xinyang Teachers College(Natural Science Edition),2005,18(2):176-177. |
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| Authors: | ZHANG Shu-xia ZHANG Hai-bin |
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| Abstract: | The physiological and biochemical properties of dendrobium offcinale of orchidaceous plant were studied.The properties of Dendrobium offcinale,soybean of the typical C_3 plant,corn of the C_4 plant and cactus of the CAM plant were compared. The results show that, the value of chlorophyll a/b of Dendrobium offcinale is lower,it is similar to the change of pH between Dendrobium offcinale and cactus, which is from lower to higher a daytime and reverses at night.It fluctuates day and night . The PEPCase activity is higher than soybean's. |
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| Keywords: | Dendrobium offcinale CAM chlorophyll a/b ratio PEPCase activity |
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