| 杨俊年 胡廷章 刘仁华 陈再刚 唐 亮袁何 丹.渗透胁迫对水稻幼苗生理生化的影响[J].广东农业科学,2014,41(1):1-4 |
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渗透胁迫对水稻幼苗生理生化的影响 |
| Effect on physiological and biochemical indexesof rice seedlings under osmotic stress |
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| DOI： |
| 中文关键词: 渗透胁迫 生理生化指标 酶活性 水稻幼苗 PEG |
| 英文关键词: osmotic stress physiological and biochemical indexes enzyme activity rice seedling PEG |
| 基金项目:重庆市科委自然科学基金（2012j j A80009） |
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| 摘要点击次数: 1889 |
| 全文下载次数: 731 |
| 中文摘要: |
| 采用聚乙二醇对水稻品种宜香481 和黄华占的幼苗进行了4 种浓度和持续8 天的渗透胁迫，对胁迫过程
中的脯氨酸，可溶性糖，可溶性蛋白，丙二醛，超氧化物歧化酶\过氧化物酶，过氧化氢酶和硝酸还原酶8 个生理生化
指标进行了3 次测定.结果表明:脯氨酸随着胁迫浓度和时间的持续都表现为上升,其他3 个生理指标表现不稳定;
所测4 个生化指标中，随胁迫浓度的上升过氧化氢酶表现为上升，硝酸还原酶则下降，其他两种酶表现不稳定，随着
胁迫时间的持续，过氧化物酶呈现先下降后上升，过氧化氢酶则表现为先上升后下降。 |
| 英文摘要: |
| This experiment stresses rice seedlings of Yixiang 481 and Huanghuazhan under 4 different concentrations
of polyethylene glycols in 8 days, with 8 physiological and biochemical indexes of proline, soluble sugar, soluble protein,
malondialdehyde, superoxide dismutase, catalase, peroxidase and nitrate reductase were measured for 3 times. The results
showed that, proline increased with the raising stress concentration and time, while the other 3 physiological indexes
showed instability. Besides, of 4 biochemical indexes, the catalase increased with raising stress concentration while nitrate
reductase decreased and the other 2 enzymes were instable, peroxidase decreased first then increased, while catalase
increased first then decreased. |
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