... of another miR156 gene, miR156C. We conclude that the system driving phase change in the shoot affects developmental progression in the root, and that PLETHORA 2 participates in this network. * Present address: USDA, Agricultural Research Service, Mycotoxin Prevention and Applied Microbiology Research...

....2015.01.017 Poethig , R. S. ( 2009 ). Small RNAs and developmental timing in plants . Curr. Opin. Genet. Dev.   19 , 374 - 378 . 10.1016/j.gde.2009.06.001 Poethig , R. S. ( 2013 ). Vegetative phase change and shoot maturation in plants . Curr. Top. Dev. Biol.   105 , 125 - 152...

... ; Wang et al., 2009 ; Wang et al., 2008 ; Wu et al., 2009 ; Wu and Poethig, 2006 ; Xing et al., 2010 ). As unique targets of miR156, SPL genes are expected to play key roles in the vegetative and possibly the reproductive phase change, but, probably owing to extensive redundancy, single mutants...

...Li Yang; Susan R. Conway; R. Scott Poethig Vegetative phase change in Arabidopsis is regulated by miR156, a microRNA that promotes the expression of the juvenile phase and represses the expression of the adult phase. miR156 is expressed at a very high level early in shoot development...

... expressing miR156 -sensitive and miR156 -insensitive forms of SPL3/4/5 revealed that all three genes promote vegetative phase change and flowering, and are strongly repressed by miR156 . Constitutive expression of miR156a prolonged the expression of juvenile vegetative traits and delayed flowering...

... mutations affect the size of the shoot apical meristem, accelerate vegetative phase change, delay floral induction under short days, adaxialize leaves and carpels, disrupt the phyllotaxis of the inflorescence, and reduce fertility. Double mutant analysis suggests that HST acts in parallel to SQUINT...

... ) 06 10 1999 24 08 1999 © 1999 by Company of Biologists 1999 Arabidopsis thaliana Early flowering Vernalisation Day length Phase change A plant needs to flower at a suitable time of the year in order to produce a large number of viable seeds. Given its importance...

... on 35S TFL1 and tfl1 plants suggest that TFL1 acts in the shoot meristem to retard phase changes over the entire life cycle ( Schultz and Haughn, 1993 ; Bowman et al., 1993 ; Ratcliffe et al., 1998 ). As such, it delays the onset of phases where LFY and AP1 are expressed on the periphery...

... of Biologists 1998 Phase change HASTY Arabidopsis thaliana Shoot development The primary shoot apical meristem of a plant progresses through several distinct phases during its development ( Allsopp, 1967 ; Poethig, 1990 ; Hackett and Murray, 1993 ; Lawson and Poethig, 1995 ). After its...

..., rather than there being unrelated mechanisms which regulate each specific transition during the life cycle. * Author for correspondence (e-mail: [email protected] ) 19 02 1998 01 04 1998 © 1998 by Company of Biologists 1998 Plant architecture Phase change TERMINAL...

... epidermis to respond to this inducer. 05 11 1996 © 1997 by Company of Biologists 1997 phase change trichomes paused Arabidopsis shoot development All higher plants undergo a process of shoot maturation during which they develop reproductive competence (see reviews...

... provides a link between factors that act globally to regulate phase change (e.g. the Teopod loci) and a single, relatively simple aspect of this phenomenon. A molecular analysis of the function of this gene and how its expression is regulated is likely to yield significant new insights into the mechanism...