| 翦股颖AsEXP1基因的抗旱性分析 |
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| 引用本文： | 徐筱,黄炳如,徐吉臣.翦股颖AsEXP1基因的抗旱性分析[J].北京林业大学学报,2010,32(5):126-131. |
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| 作者姓名： | 徐筱 黄炳如 徐吉臣 |
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| 作者单位： | 1 北京林业大学林木育种国家工程实验室，林木花卉遗传育种教育部重点实验室，国家林业局树木花卉育种与生物工程重点开放实验室，北京林业大学生物科学与技术学院 2 Department of Plant Biology and Pathology, Rutgers, the State University of New Jersey |
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| 基金项目： | 国家自然科学基金，教育部留学回国人员基金 |
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| 摘 要： | 分析了不同匍匐翦股颖草坪草品种在干旱环境下AsEXP1基因的表达状况,发现AsEXP1基因的表达与草坪草品种的抗旱性呈显著正相关关系,亦即在耐旱草坪草品种中表达,而在不耐旱草坪草品种中不表达。对耐热但不耐旱草坪草品种‘PennA-4’的进一步检测分析发现,AsEXP1基因经高温诱导表达后,显著增强了‘PennA-4’品种的耐旱性。
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| 关 键 词： | 草坪草 扩展蛋白 抗旱 诱导表达 |
| 收稿时间： | 1900-01-01 |
Analysis of AsEXP1 gene related to drought tolerance in creeping bentgrass |
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| XU Xiao,HUANG Bing-ru,XU Ji-chen.Analysis of AsEXP1 gene related to drought tolerance in creeping bentgrass[J].Journal of Beijing Forestry University,2010,32(5):126-131. |
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| Authors: | XU Xiao HUANG Bing-ru XU Ji-chen |
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| Institution: | 1 National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Tree and Ornamental Plant Breeding and Biotechnology Laboratory of State Forestry Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, P. R. China; 2 Department of Plant Biology and Pathology, Rutgers, the State University of New Jersey, NJ 08901, USA. |
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| Abstract: | In this report, the expression of AsEXP1 gene was tested under drought stress among turf-grass species. The result showed significant correlation between AsEXP1 gene expression and drought tolerance. It is expressed in drought tolerant plants but silent in drought sensitive plants. Further analysis with turf-grass ‘PennA- 4’, a heat tolerant but drought sensitive grass species, revealed that the induced AsEXP1 by heat was beneficial for plants to tolerate drought stress. |
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| Keywords: | turf-grass expansin drought tolerance expression inducible |
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