| 土壤干旱对小麦绿色器官光合电子传递和光合磷酸化活力的影响 |
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| 引用本文： | 魏爱丽,王志敏,陈斌,翟志席,张英华.土壤干旱对小麦绿色器官光合电子传递和光合磷酸化活力的影响[J].作物学报,2004,30(5):487-490. |
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| 作者姓名： | 魏爱丽 王志敏 陈斌 翟志席 张英华 |
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| 作者单位： | 中国农业大学农学与生物技术学院, 北京100094 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | 比较研究了开花后干旱胁迫下小麦(Triticum aestivum L.)不同绿色器官光合活性的变化，发现叶片光合对干旱胁迫的敏感性大于穗器官。在干旱胁迫下各器官叶绿体Hill反应活力、光合电子传递活性及光合磷酸化水平均下降，但下降幅度以旗叶叶片明显大于穗、穗下节间和叶鞘。暗示穗等非叶器官的光合作用具有较强的耐逆性。
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| 关 键 词： | 小麦 干旱胁迫 穗光合 光合磷酸化 |
| 收稿时间： | 2002-11-19 |
| 修稿时间： | 2002年11月19 |
Effect of Soil Drought on Electron Transport Rate and Photophosphorylation Level of Different Green Organs in Wheat |
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| WEI Ai-Li.Effect of Soil Drought on Electron Transport Rate and Photophosphorylation Level of Different Green Organs in Wheat[J].Acta Agronomica Sinica,2004,30(5):487-490. |
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| Authors: | WEI Ai-Li |
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| Institution: | College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094 |
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| Abstract: | Photosynthetic characteristics of different green organs of winter wheat after anthesis were studied under soil drought condition. The results showed that flag leaf blade was more sensitive to drought stress than ear. Under water stress, Hill activities, electron transport rates and photophosphorylation levels in all green organs declined, but the rate of decline was higher in flag leaf blade than in ear, peduncle and sheath. It suggested that stress tolerance of non-leaf organs, especially ear, was stronger than that of leaf blade in photosynthesis. |
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| Keywords: | Wheat drought stress Ear photosynthesis Photophosphorylate |
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