... 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...

... unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. Summary: Regulation of reproductive stem elongation in barley by APETALA2 suggests a pivotal role for phase change repression of JA-associated responses to promote internode growth...

... or adult, developmental stages, making them optimal systems for phenotypic studies of vegetative phase change ( Doorenbos, 1965 ; Hackett, 1985 ; Jaya et al., 2010 ). Unfortunately, such plants are usually not the best suited for molecular analyses as the genomic resources available for them are still...

...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...

... 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, it is not surprising that flower initiation is controlled by many environmental...

... for correspondence (e-mail: coenen@bbsrc.ac.uk ) 30 12 1999 15 02 1999 © 1999 by Company of Biologists 1999 Arabidopsis Phase change TERMINAL FLOWER 1 ( TFL1 ) APETALA 1 ( AP1 ) LEAFY ( LFY ) CAULIFLOWER ( CAL ) Shoot meristem Floral meristem Flower development...

... 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: bradley@bbsrc.ac.uk ) 19 02 1998 01 04 1998 © 1998 by Company of Biologists 1998 Plant architecture Phase change TERMINAL...

... of the Teopod genes. * Author for correspondence 05 04 1994 © 1994 by Company of Biologists 1994 glossy15 heterochrony phase change epidermis Zea mays During development, higher organisms pass through a series of discrete phases. The transition between these phases can...