拟南芥miR399耐低磷胁迫研究进展  

Advances of miR399 in Resistance of Low-phosphate Stress in Arabidopsis Thaliana

作　　者：孙佃臣[1,2] 沙爱华[1] 单志慧[1] 周蓉[1] 周新安[1] 

机构地区：[1]中国农业科学院油料作物研究所农业部油料作物生物学重点开放实验室,武汉430062 [2]中国农业科学院研究生院,北京100081

出　　处：《中国生物工程杂志》2011年第11期102-106,共5页China Biotechnology

基　　金：国家转基因生物新品种培育科技重大专项(2008ZX08004-005);农业部作物种质资源保护项目[(NB07-2130315-06;NB08-2130315-(25-31)-06)]资助项目

摘　　要：MicroRNA是一类长21～25nt的内源非编码RNA,可以与目标mRNA结合使之断裂或降解,从而在转录或转录后水平发挥作用。miR399长22nt,在拟南芥中有6个成员,分别是miR399a～f,已在19个物种中发现了118个miR399。现已证明,拟南芥miR399在耐低磷胁迫中有重要作用,现对拟南芥miR399在耐低磷胁迫中的研究进展进行综述,以探索miR399提高大豆及其他植物耐低磷胁迫能力的可能性。MicroRNAs are a kind of non-coding RNA, about 21 -25nt. These small RNAs induce transcriptional or posttranscriptional gene silencing by guiding heterochromatin formation, mRNA degradation, or translational inhibition. MiR399 have six members in Arabidopsis thaliana, including mi399a- f. And 118 microRNAs have been identified in 19 species. What has been proved is that miR399 can play an important role in low-phosphate limitation. Recent advances in miR399, exploring the probability to conquer low-phosphate stress of soybean and other plants be reviewed.

关 键 词：拟南芥 miR399 低磷胁迫 

分 类 号：Q52[生物学—生物化学]