SQUAMOSA Promoter-Binding Protein-Like Transcription Factors:Star Players for Plant Growth and Development  

作　　者：Xiaobo Chen Zenglin Zhang Danmei Liu Kai Zhang Aili Li Long Mao 

机构地区：[1]National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI),MOA Key Laboratory of Crop Germplasm & Biotechnology,Institute of Crop Science,Chinese Academy of Agricultural Sciences (CAAS),Beijing 100081,China

出　　处：《Journal of Integrative Plant Biology》2010年第11期946-951,共6页植物学报（英文版）

基　　金：supported in part by the State Key Basic Research and Development Plan (973) of China (2009CB118306 and 2010CB125902);the National Natural Science Foundation of China (30670188)

摘　　要：SQUAMOSA Promoter-Binding Protein-Like （SPL） genes encode plantspecific transcription factors that play important roles in plant phase transition,flower and fruit development,plant architecture,gibberellins signaling,sporogenesis,and response to copper and fungal toxins.In Arabidopsis,many SPL genes are post-transcriptionally regulated by the microRNA （miRNA） miR156,among which AtSPL9 in turn positively regulates the expression of the second miRNA miR172.This miR156AtSPL9-miR172 regulatory pathway plays critical roles during juvenile to adult leaf development and the miR156-SPLs feedback interaction persists all through the plant development,which may be conserved in other plants.In the present paper,we provide a concise review on the most recent progress in the regulatory mechanisms associated with plant SPL transcription factors,especially in relation to miRNAs.The potential application of these discoveries in agriculture is briefly discussed.SQUAMOSA Promoter-Binding Protein-Like （SPL） genes encode plantspecific transcription factors that play important roles in plant phase transition,flower and fruit development,plant architecture,gibberellins signaling,sporogenesis,and response to copper and fungal toxins.In Arabidopsis,many SPL genes are post-transcriptionally regulated by the microRNA （miRNA） miR156,among which AtSPL9 in turn positively regulates the expression of the second miRNA miR172.This miR156AtSPL9-miR172 regulatory pathway plays critical roles during juvenile to adult leaf development and the miR156-SPLs feedback interaction persists all through the plant development,which may be conserved in other plants.In the present paper,we provide a concise review on the most recent progress in the regulatory mechanisms associated with plant SPL transcription factors,especially in relation to miRNAs.The potential application of these discoveries in agriculture is briefly discussed.

分 类 号：Q945.12[生物学—植物学] Q753