| 盐胁迫条件下两种基因型小麦生长及保护酶活性的反应 |
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| 引用本文： | 贺岩,李志岗,李新鹏,赵娟.盐胁迫条件下两种基因型小麦生长及保护酶活性的反应[J].山西农业大学学报(自然科学版),2005,25(1):42-44. |
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| 作者姓名： | 贺岩 李志岗 李新鹏 赵娟 |
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| 作者单位： | 山西农业大学,农学院,山西,太谷,030801 |
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| 基金项目： | 山西省青年科技研究基金项目 (20041034)，山西农业大学青年创新基金项目 (200206) |
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| 摘 要： | 采用组织培养技术对旱地品种吕旱187和水地品种京841进行盐胁迫处理, 研究不同基因型小麦对NaCl胁迫的不同反应机制。结果表明: 在种子萌发率、株高、丙二醛含量以及细胞膜渗漏率等多项生长及抗性生理指标中, NaCl对京841的胁迫程度比吕旱187严重。两种小麦植株中的SOD、POD等保护酶对盐胁迫反应不同。POD可能是耐盐小麦植株体内发挥清除活性氧基团作用的主要保护性酶, POD活性提高有利于缓解盐胁迫产生的氧化性损伤。
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| 关 键 词： | 盐胁迫 小麦 保护酶 组织培养 |
| 文章编号： | 1671-8151(2005)01-0042-03 |
| 修稿时间： | 2004年4月21日 |
Responses of the Growth and the Protective Enzymes Activities in Two Genotypic Wheats Under Salt Stress |
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| HE Yan et al..Responses of the Growth and the Protective Enzymes Activities in Two Genotypic Wheats Under Salt Stress[J].Journal of Shanxi Agricultural University,2005,25(1):42-44. |
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| Authors: | HE Yan |
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| Abstract: | Theresponses of the different genotypic seedlings of Lǚhan187and Jing 841to salt stress had been investigated by means of tissue culture. The study indicated that Jing 841 was more susceptible to NaCl- stress than Lǚhan187 on the germination rate, the seedling height, the malondialdehyde (MDA) concentration , and the cell membrane leakage rate. The activities of the peroxidase enzyme (POD)and the superoxide dismutase (SOD) in the two cultivars varied under salt stress.ThePOD, the key protective enzyme, was responsible for the scavenging of reactive oxygen in the salt-tolerance wheat. The higher concentration of the PODdetoxified the oxidative stress caused byNaCl. |
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| Keywords: | Salt stress Wheat Protective enzymes Tissue culture |
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