| Ce（NH4）2（NO3）6对玉米种子萌发和幼苗根系活力的影响 |
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| 引用本文： | 徐秋曼,CHEN Hong,程景胜.Ce（NH4）2（NO3）6对玉米种子萌发和幼苗根系活力的影响[J].天津师范大学学报(自然科学版),2008,28(3):5-7. |
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| 作者姓名： | 徐秋曼 CHEN Hong 程景胜 |
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| 作者单位： | 1. 天津师范大学,化学与生命科学学院,天津,300387;天津师范大学,天津市细胞遗传与分子调控重点实验室,天津,300387
2. 天津大学化工学院,天津,300072 |
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| 摘 要： | 用不同浓度Ce（NH4）2（NO3）6对玉米种子浸种,探讨了外源Ce（NH4）2（NO3）6对种子萌发、幼苗根系活力、脯氨酸含量及细胞膜透性的影响.结果表明：用10-20 mg/L Ce（NH4）2（NO3）6浸种24 h,可增强玉米种子在萌发时的α-淀粉酶活性,提高种子活力、萌发率及幼苗根系活力,脯氨酸含量增加,幼苗细胞膜相对透性降低;用50-100 mg/L Ce（NH4）2（NO3）6浸种后,发现种子活力、脯氨酸含量及幼苗根系活力下降,幼苗细胞膜相对透性增加.
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| 关 键 词： | Ce(NH4)2(NO3)6 玉米 种子萌发 根系活力 细胞膜透性 |
Effects of Ce(NH4)2(NO3)6 on seed generation and root activities of maize |
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| XU Qiuman,CHEN Hong,CHENG Jingsheng.Effects of Ce(NH4)2(NO3)6 on seed generation and root activities of maize[J].Journal of Tianjin Normal University(Natural Science Edition),2008,28(3):5-7. |
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| Authors: | XU Qiuman CHEN Hong CHENG Jingsheng |
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| Institution: | XU Qiurnan, CHEN Hong , CHENG Jingsheng (1. College of Chemistry and Life Science;2. Tianjin Key Laboratory of Cyto-Genetical and Molecular Regulation Tianjin Normal University, Tianjin 300387, China; 2. School of Chemical Engineering ＆ Technology, Tianjin University, Tianjin 300072, China) |
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| Abstract: | Effects of Ce（NH4）2（NO3）6 solutions with different concentration on seed generation,root activities,proline contents and membrane permeability of maize seeds were studied.The results showed that,compared with check,treated seed with 10-20 mg/L Ce（NH4）2（NO3）6 solution for 24 h,the amylase activities,seed activity and germination percentage,proline content and the root activity for maize seeds increased.In the mean time,the membrane permeability of seeds decreased.In the Ce（NH4）2（NO3）6 solution with concentration of 50-100 mg/L,the membrane permeability increased,but the activities of seed and root went down steadily,so did the proline content of maize seeds. |
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| Keywords: | Ce（NH4）2（NO3）6 maize seed generation root activity membrane permeability |
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