| 水分胁迫下露花光合型的转变 |
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| 引用本文： | 张维经,尉亚辉,毛宗渊. 水分胁迫下露花光合型的转变[J]. 植物生理与分子生物学学报, 1987, 0(2) |
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| 作者姓名： | 张维经 尉亚辉 毛宗渊 |
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| 作者单位： | 西北大学生物系 西安(张维经，尉亚辉)，陕西师范大学生物系 西安(毛宗渊) |
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| 摘 要： | CAM植物按其对环境的反应可分为两种类型:即专一CAM植物和兼性CAM植物。前者不易受外界环境的变化而改变其CAM性质;后者的光合型可随季节和水分胁迫等而发生变化,也可因人工诱导作用而使其由C_3型转变为CAM型。
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| 关 键 词： | 露花 水分胁迫 光合型 转变 |
SHIFT OF PHOTOSYNTHESIS MODE IN Mesembyanthemum cordifolium FOLLOWING EXPOSURE TO WATER STRESS |
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| Zhang Wei-jing,Wei Ya-hui,Mao Zhung-yuan. SHIFT OF PHOTOSYNTHESIS MODE IN Mesembyanthemum cordifolium FOLLOWING EXPOSURE TO WATER STRESS[J]. Journal Of Plant Physiology and Molecular Biology, 1987, 0(2) |
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| Authors: | Zhang Wei-jing Wei Ya-hui Mao Zhung-yuan |
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| Affiliation: | Zhang Wei-jing,Wei Ya-hui,Mao Zhung-yuan Department of Biology. Northwest University,Xian Department of Biology,Shaanxi Normal University,Xian |
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| Abstract: | The induction of CAM by artifical drought in Mesembryanthemum cordifolium,a plant of the family Aizoaceae, was studied under natural photoperiod and temper-ature. Constantly watered plants was of C_3-type. In summer, CAM in the matureleaves could appear within two days after ceasing of watering: net CO_2 uptake andlow stomatal resistance were observed during the night; CO_2 output occurred andstomata closed for most of the daytime; and the leaves exhibited a marked diurnafluctuation in acid content. In the leaves of water-stressed plants, the activityof PEP carboxylase increased by 8 and 14 times more than that of the control plantslone and two days after the cessation of watering, respectively. |
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| Keywords: | photosynthesis type Mesembryanthemum cordifolium water stress shift |
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