| 草珊瑚低温半致死温度对自然降温的适应 |
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| 引用本文： | 向邓云,谢吉容,谈锋. 草珊瑚低温半致死温度对自然降温的适应[J]. 西南农业大学学报(社会科学版), 2001, 0(1) |
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| 作者姓名： | 向邓云 谢吉容 谈锋 |
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| 作者单位： | 涪陵高等师范专科学校生物科学系 重庆涪陵408003(向邓云)，重庆师范高等专科学校生物系 重庆永川402168(谢吉容)，西南师范大学生命科学学院 重庆400715(谈锋) |
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| 摘 要： | 以草珊瑚为材料 ,研究了其叶片低温半致死温度与自由基清除系统随气温下降的变化。结果表明 ,低温半致死温度降低的同时 ,SOD、POX活性增强 ,VitC含量增加 ,使自由基清除系统的清除能力加强 ,O2 .- 水平降低 ,MDA含量下降。自由基清除系统的适应性变化导致低温半致死温度的下降是抗寒性提高的生理基础
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| 关 键 词： | 草珊瑚 半致死温度 自由基清除系统 抗寒性 |
THE ADAPTATION OF S.GLABRA(THUNB.)NAKAI SEMILETHAL TEMPERATURE TO THE NATURAL TEMPERATURE FALLING |
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| Xiang Dengyun Xie Jirong Tan Feng. THE ADAPTATION OF S.GLABRA(THUNB.)NAKAI SEMILETHAL TEMPERATURE TO THE NATURAL TEMPERATURE FALLING[J]. Journal of Southwest Agricultural University:Social Science Edition, 2001, 0(1) |
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| Authors: | Xiang Dengyun Xie Jirong Tan Feng |
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| Affiliation: | Xiang Dengyun Xie Jirong Tan Feng |
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| Abstract: | The test investigated the changes of the semilethal temperature and free radical scavenging system of S. glabra(Thunb.)Nakai leaves as temperature falls. The results showed that the semilethal temperature decreased. While the activity of SOD,POX and the content of Vit C increased, leading to the increase of the ability of the scavenging free radical. In this way the level of O 2 .- and the content of MDA decreased. The decline of the semilethal temperature caused by the changes of free radical scavenging system was the foundation of the raised cold resistance ability. |
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| Keywords: | S.glabra(Thunb.)Nakai Semilethal temperature Free radical scavenging system Cold resistance |
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