| 植物磷胁迫条件特异性表达基因研究进展 |
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| 作者姓名： | 韩毅强 高亚梅 徐芳森 |
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| 作者单位： | 黑龙江八一农垦大学生命科学技术学院 黑龙江大庆163319(韩毅强，高亚梅)，华中农业大学作物遗传改良国家重点实验室 湖北武汉430070(徐芳森) |
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| 基金项目： | 高等学校博士学科点专项科研基金“甘蓝型油菜磷营养高效利用的遗传基础和分子机理”（20050504009）· |
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| 摘 要： | 磷是植物生长发育必须的元素,然而多数土壤中可利用磷的含量却很少能满足作物的需要,因而作物磷素营养研究成为广泛研究的课题。目前,磷素营养的研究已深入到分子水平。在磷缺乏时,植物根和茎中发现了许多磷缺乏特异性表达的基因,包括高亲和力磷转运子、有机酸的分泌相关基因、酸性磷酸酶、TPSI1/Mt4基因家族等。这些磷缺乏特异性基因的表达对植物吸收利用磷起到重要作用。磷缺乏特异性表达基因的研究为了解植物适应磷胁迫的机制、提高磷利用率改良作物奠定了基础。
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| 关 键 词： | 磷胁迫 磷转运子 磷酸酶 |
The Advance on Specific Expression Genes in response to Phosphorus Deficiency in Plants |
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| Authors: | HanYiqiang GaoYamei Xu Fangsen |
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| Institution: | 1, College of life science and technology, HeiLongiang August First Land Reclamation University, Daqing, 163319; 2, National Key Laboratory of Crop Genetic Improvement, HuazhongAgriculture University, Wuhan 430070 |
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| Abstract: | Phosphorus is an essential macronutrient for plant, but its availability is very lower in soil. The plants phosphorous nutrition is widely researched in the world. At present, researches on plant phosphorus (P) nutrition have involved in molecular mechanism. Many specific expression genes in response to P deficiency were found in both roots and shoots, including high-affinity phosphate transporters, genes related to release of organic acids, acid phosphatases, TPSI1/Mt4 gene family and so on. Those specific expression genes in response to P deficiency provided a basis for understanding the mechanism of adaptation to P deficiency and development of crops with improved P-use-efficiency. |
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| Keywords: | P deficiency Phosphate transporter Phosphatase |
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