| 不同小麦F2代幼苗对水分胁迫的生理反应 |
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| 引用本文： | 孙敬海,王湘俊,戴忠民. 不同小麦F2代幼苗对水分胁迫的生理反应[J]. 中国农学通报, 2014, 30(36): 28-36 |
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| 作者姓名： | 孙敬海 王湘俊 戴忠民 |
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| 作者单位： | 德州市农科院,德州市农科院,德州学院生命科学学院 |
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| 基金项目： | 基金项目：国家自然科学基金(31271667)；山东省自然科学基金(ZR2010CM044)；作物生物学国家重点实验室开放基金资助项目“小麦籽粒谷蛋白大聚合体形成与谷蛋白亚基积累的关系机制及其调节”(2012KF10)。 |
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| 摘 要： | 本研究选用5种不同基因型小麦F2代的种子，采用沙培控水方式对其幼苗进行不同程度的水分胁迫，分析不同小麦幼苗对水分胁迫的生理反应，以期筛选出抗旱性较强的小麦材料。水分胁迫处理到12、15、18天时，采样测定小麦叶片中的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)的活性以及游离脯氨酸和可溶性蛋白质含量的变化。结果表明，在干旱胁迫下，5种小麦幼苗的各项生理指标都表现不同程度的变化，其中，小麦材料024737受干旱胁迫条件的影响比其他4种小麦材料要小，其抗旱性较高。
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| 关 键 词： | 小麦；水分胁迫；生理反应 |
| 收稿时间： | 2014-04-25 |
| 修稿时间： | 2014-11-10 |
Physiological Responses of Different F2 Wheat Seedlings to Water Stress |
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| Sun Jinghai,Wang Xiangjun and Dai Zhongmin. Physiological Responses of Different F2 Wheat Seedlings to Water Stress[J]. Chinese Agricultural Science Bulletin, 2014, 30(36): 28-36 |
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| Authors: | Sun Jinghai Wang Xiangjun Dai Zhongmin |
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| Affiliation: | Research Institute of Agricultural Sciences, Dezhou Shandong,Research Institute of Agricultural Sciences, Dezhou Shandong,Department of Biology, Dezhou University, Dezhou Shandong ) |
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| Abstract: | 5 F2 seedlings of different wheat genotypes were used to investigate the effects of water stress on physiological characters. The wheat seedlings were treated with different water stress. The activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) and the content of free proline and soluble protein were measured in 12, 15 and 18 days. Results showed that these physiological indexes under drought stress were different in 5 wheat seedlings. Testing wheat material 024737 was less affected by drought stress than other four testing wheat materials, which showed that 024737 had high drought resistance. |
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| Keywords: | wheat water stress physiological responses |
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