%0 Journal Article
%T RNAi-mediated knocking-down of rlpk2 gene retarded soybean leaf senescence<br>RNAi-mediated knockingdown of rlpk2 gene retarded soybean leaf senescence
%A LI Xiaoping
%A MA Yuanyuan
%A LI Pengli
%A ZHANG Liwen
%A WANG Yong
%A ZHANG Ren
%A & WANG Ningning
%A <br>LIXiaoping
%A MAYuanyuan
%A LIPengli
%A ZHANGLiwen
%A WANGYong
%A ZHANGRen
%A WANGNingning
%J 科学通报(英文版)
%D 2005
%I 
%X Leaf senescence that occurs in the last stage of leaf development is a genetically programmed process. It is very significant to elucidate the molecular mechanisms that control the initiation and progression of leaf senescence and the way the senescence signal is transduced. In a previous study on artificially induced soybean leaf senescence, we cloned a novel gene designated rlpk2 (Genbank Accession No. AY687391) that encodes a leucine-rich repeat (LRR) receptor like protein kinase. The expression level of rlpk2 gene was shown to be strongly up-regulated during both the natural leaf senescence process in this report and the artificially induced primary-leaf-senescence process in our previous work. The RNA interference (RNAi)-mediated knocking-down of rlpk2 dramatically retarded both the natural and nutrient deficiency-induced leaf senescence in transgenic soybean. The transgenic leaves showed more cell-aggregated surface structure and higher content of chlorophyll.
%K soybean
%K leaf senescence
%K RNA interference
%K gene knockdown<br>大豆
%K RNA干涉
%K 遗传因子
%K 数叶
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=A0A53C27A91BEFAF9FF09EE3817BB18E&yid=2DD7160C83D0ACED&vid=771152D1ADC1C0EB&iid=59906B3B2830C2C5&sid=E2F55FDAFC844F27&eid=3819B8B7C1B72552&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=26