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| DNA超甲基化在小麦耐盐胁迫中的作用 | |
| 引用本文： | 钟兰,王建波. DNA超甲基化在小麦耐盐胁迫中的作用[J]. 武汉植物学研究, 2007, 25(1): 102-104 |
| 作者姓名： | 钟兰 王建波 |
| 作者单位： | 武汉大学生命科学学院,植物发育生物学教育部重点实验室,武汉,430072 |
| 摘 要： | 运用高效液相色谱技术测定小麦(Triticum aestivumL.)耐盐品种‘德抗961’和盐敏感品种‘豫麦34’盐胁迫后叶片和根DNA中5-甲基胞嘧啶百分含量的变化,结果表明,经150 mmol/L NaCl处理6 d后,‘德抗961’叶片和根DNA中的5-甲基胞嘧啶的百分含量显著下降,但经150 mmol/L NaCl处理10 d后,耐盐品种‘德抗961’叶片和根DNA中的5-甲基胞嘧啶的百分含量都比盐敏感品种‘豫麦34’的高。由此推测DNA超甲基化可能是植物耐盐机制的一部分。 |
| 关 键 词： | 盐胁迫 小麦 DNA甲基化 |
| 文章编号： | 1000-470X（2007）01-0102-03 |
| 收稿时间： | 2006-08-08 |
| 修稿时间： | 2006-08-082006-11-24 |
The Role of DNA Hypermethylation in Salt Resistence of Triticum aestivum L. |
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| ZHONG Lan,WANG Jian-Bo. The Role of DNA Hypermethylation in Salt Resistence of Triticum aestivum L.[J]. Journal of Wuhan Botanical Research, 2007, 25(1): 102-104 | |
| Authors: | ZHONG Lan WANG Jian-Bo |
| Affiliation: | Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, China |
| Abstract: | The content of 5-methyl cytosine in two cultivars of wheat(Triticum aestivum L.) exposed to salt stress was measured by high pressure liquid chromatography.The result indicated that the degree of 5-methyl cytosine in the leaf as well as in the root of 'Dekang 961' decreased after 6 days treatment with 150 mmol/L NaCl,but higher than that of 'Yumai 34' after 10 days treatment with 150 mmol/L NaCl.We suggested that hypermethylation could be a part of the resistant mechanism of plants to salt. |
| Keywords: | Salt stress Triticum aestivum L. DNA methylation |
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