【摘 要】
：
Dear Editor,The plant-specific GIBBERELLIN (GA)-STIMULATED TRANSCRIPT 1 (GAST1)-like genes have been identified in numerous plant species and many of them are r
【机 构】
：
Institute of Plant Sciences and Genetics in Agriculture, The Robert H.Smith Faculty of Agriculture,
论文部分内容阅读
Dear Editor,The plant-specific GIBBERELLIN (GA)-STIMULATED TRANSCRIPT 1 (GAST1)-like genes have been identified in numerous plant species and many of them are regulated by the phytohormone GA.All encode small proteins with a conserved cysteine-rich C-terminus,containing 12 cysteines in conserved positions.The fact that the number and positions of all 12 cysteines have not changed during the course of evolution strongly implies fundamental and important biochemical and biological functions.Although many of these genes were characterized,and different biological functions were suggested,almost nothing is known about their mode of action.We previously showed that the petunia GAST1-like GA INDUCED 2 (GIP2) and its Arabidopsis homolog GA STIMULATED 4 (GASA4) promote typical GA responses and have redox activity (Wigoda et al.,2006;Rubinovich and Weiss,2010).Mutated GASA4,in which four conserved cysteines were replaced by alanines,lost its redox activity and the ability to promote GA responses,suggesting that the two functions are linked (Rubinovich and Weiss,2010).
其他文献
Dear Editor,Oxygen,the terminal electron acceptor for mitochondrial electron transport,is vital for plants because of its role in the production of ATP by oxida
Strigolactones (SLs),a group of small carotenoid-derived terpenoid lactones,have been recently identified as plant hormones controlling plant architecture throu
Dear Editor,The oxidative pentose-phosphate pathway (OPPP) rep resents a central branch of cellular metabolism emanating from glucose-6-phosphate (G6P) to provi
Dear Editor,In todays post-genomic era where direct targets of many transcription factors have been identified,it is becoming increasingly evident that transcri
Dear Editor,Petunia possesses self-incompatibility (Sl),by which pistils reject self-pollen but accept non-self pollen for fertilization (de Nettancourt,2001;Iw
Dear Editor,Higher plants have evolved hundreds of genes encoding receptor-like kinases (RLKs),which function as cell surface receptors perceiving developmental
Dear Editor,Photorespiration is an essential metabolic process in leaves that facilitates recovery of carbon lost by the oxygenase reaction of Rubisco and avoid