| 3个类核糖核酸基因在磷饥饿条件下的表达 |
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| 引用本文： | 常胜合,舒海燕,童依平,李滨,李振声.3个类核糖核酸基因在磷饥饿条件下的表达[J].作物学报,2005,31(9):1115-1119. |
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| 作者姓名： | 常胜合 舒海燕 童依平 李滨 李振声 |
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| 作者单位： | 中国科学院遗传与发育生物学研究所，北京100101 |
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| 基金项目： | 科技部973项目(2004CB117200)，863项目(2003AA207080)资助。 |
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| 摘 要： | 核糖核酸酶（RNases）可以将衰老的植物组织中的核糖核酸降解释放出磷元素，使它能够运送到幼嫩部位被重新利用。许多核糖核酸酶基因的表达受磷饥饿的正调控。利用已有的EST序列，从普通小麦“小偃54”中分离了3个核糖核酸酶基因的cDNA序列。这3个基因预测的氨基酸序列与S-核糖核酸酶和S-like核糖核酸酶（类核糖核酸酶）的氨
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| 关 键 词： | 磷饥饿 普通小麦 类核糖核酸酶 |
| 收稿时间： | 2004-09-08 |
| 修稿时间： | 2005-01-16 |
Expressions of Three Wheat S-like RNase Genes Were Differentially Regulated by Phosphate Starvation |
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| CHANG Sheng-He,SHU Hai-Yan,TONG Yi-Ping,LI Bin,LI Zhen-Sheng.Expressions of Three Wheat S-like RNase Genes Were Differentially Regulated by Phosphate Starvation[J].Acta Agronomica Sinica,2005,31(9):1115-1119. |
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| Authors: | CHANG Sheng-He SHU Hai-Yan TONG Yi-Ping LI Bin LI Zhen-Sheng |
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| Institution: | 1.The Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101 |
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| Abstract: | In plants, RNase can degrade RNA to release Pi in senescent organs, which can be reused by young organs. The expression of many S-like RNase genes were up-regulated by phosphate starvation. Using the ESTs, three S-like RNase gene cDNAs were isolated from common wheat by RT-PCR. The predicated amino acid sequences of the three sequences were found having high similarities with those S-RNases and S-like RNases in other plant species. The expression of WRN1 was down-regulated by phosphate starvation and leaf senescence, while WRN2 and WRN3 were up-regulated by phosphate starvation. |
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| Keywords: | Phosphate starvation Common wheat (Triticum aestivum L ) S-like RNase |
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