| NaHCO3胁迫下白桦四倍体表型及生理分析 |
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| 引用本文： | 穆怀志,林琳,于建国,姜效龙,张骁,夏富才.NaHCO3胁迫下白桦四倍体表型及生理分析[J].北华大学学报(自然科学版),2016,17(5):585-589. |
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| 作者姓名： | 穆怀志 林琳 于建国 姜效龙 张骁 夏富才 |
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| 作者单位： | 北华大学林学院,吉林 吉林,132013;中国林业科学研究院寒温带林业研究中心，黑龙江 哈尔滨 150086;国家林业局哈尔滨林业机械研究所，黑龙江 哈尔滨 150086;吉林市龙潭区新山苗木专业合作社,吉林 吉林,132206;吉林省林业勘察设计研究院,吉林 长春,130022 |
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| 基金项目： | 吉林省教育厅科学技术研究项目(2015139)，北华大学博士科研启动基金 |
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| 摘 要： | 采用Na HCO3胁迫处理白桦四倍体苗木,测定其表型特征及生理特性.结果表明:在Na HCO3胁迫下,白桦四倍体叶片受盐害程度明显低于二倍体,苗高和地径生长明显高于二倍体;白桦四倍体净光合速率、可溶性糖含量、可溶性蛋白含量、脯氨酸含量、超氧化物歧化酶活性和过氧化物酶活性始终显著高于二倍体.
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| 关 键 词： | 白桦 四倍体 胁迫响应 |
Morphology and Physiology of Autotetraploid Betula platyphylla Responding to NaHCO3 Stress |
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| Mu Huaizhi,Lin Lin,Yu Jianguo,Jiang Xiaolong,Zhang Xiao,Xia Fucai.Morphology and Physiology of Autotetraploid Betula platyphylla Responding to NaHCO3 Stress[J].Journal of Beihua University(Natural Science),2016,17(5):585-589. |
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| Authors: | Mu Huaizhi Lin Lin Yu Jianguo Jiang Xiaolong Zhang Xiao Xia Fucai |
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| Abstract: | To evaluate the impact of intraspecies genome duplication on NaHCO3 stress, a series of Betula platyphylla autotetraploids and diploids were generated from the same family. The morphology and physiology of these autotetraploid individuals were compared with those diploid trees. Autotetraploids were superior in injury index and relative growth of height and base diameter compared to diploids. Physiological data revealed autotetraploids were generally higher expression in net photosynthetic rate,soluble sugar content,soluble protein content,proline content,superoxide dismutase activity and peroxidase activity. |
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| Keywords: | Betula platyphylla autotetraploid stress response |
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