| 高温胁迫对早稻根系质膜ATPase活性及NH4+吸收速率的影响 |
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| 引用本文： | 许锦彪,曹云英,石庆华,李木英. 高温胁迫对早稻根系质膜ATPase活性及NH4+吸收速率的影响[J]. 种子, 2006, 25(10): 6-8,12 |
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| 作者姓名： | 许锦彪 曹云英 石庆华 李木英 |
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| 作者单位： | 1. 南通大学,江苏,南通,226007
2. 江西农业大学,南昌,330045 |
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| 摘 要： | 以耐热型品种“农大228”、“082”和热敏感品种“茉莉占”、“协清早B”为材料，研究高温胁迫后不同耐性品种之间的生理差异。结果如下：高温胁迫后，耐热型品种根系质膜ATPa~e活性升高，热敏感型品种活性降低；耐热型品种根系NHf吸收速率不受影响，热敏感型品种明显下降。高温胁迫后根系NHf吸收动力学参数的变化与品种的耐热性无关。
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| 关 键 词： | 早稻 根系 高温胁迫 酶 |
| 收稿时间： | 2006-07-05 |
| 修稿时间： | 2006-07-05 |
Effects of High Temperature Stress on the Plasma ATPase Activeties and NH4+ Absorbing Velocity of Early Rice Roots |
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| Xu Jingbiao,Cao Yunying,Shi Qinghua,Li Muying. Effects of High Temperature Stress on the Plasma ATPase Activeties and NH4+ Absorbing Velocity of Early Rice Roots[J]. Seed, 2006, 25(10): 6-8,12 |
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| Authors: | Xu Jingbiao Cao Yunying Shi Qinghua Li Muying |
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| Affiliation: | 1. Nantong University, Nantong Jiangsu 226007 ; 2. Jiangxi Agriculture University,Nanchang 330045 |
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| Abstract: | Some physiological figures of roots s were investigated after high temperature stress respectively during grain filling stage and seedling stage among heat tolerant rice cultivars(Nongda 228 and 082) and heat sensitive rice cultivars(Molizhan and XiqingzaoB).The main results showed that:After high temperature stress,the plasma membrance ATPase activities of heat tolerant rice roots increased,but heat sensitive cultivars decreased;The velocity of absorbing NH~+_4 in heat tolerant cultivars were not influenced,but that of sensitive decreased obviously.There was no relationship between the variety of NH~+_4 absorbing impetus parameters stress and the tolerance of rice cultivars under high temperature. |
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| Keywords: | ATP |
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