... with fruit development occur at the floral meristem (FM). Age-regulated microRNA156 (miR156) and gibberellins (GAs) interact to control flowering time, but their interplay in subsequent stages of reproductive development is poorly understood. Here, in tomato ( Solanum lycopersicum ), we show that GA...

...Ya Min; Stephanie J. Conway; Elena M. Kramer ABSTRACT In-depth investigation of any developmental process in plants requires knowledge of both the underpinning molecular networks and how they directly determine patterns of cell division and expansion over time. Floral meristems (FMs) produce floral...

...Takuya Suzaki; Makoto Sato; Motoyuki Ashikari; Masahiro Miyoshi; Yasuo Nagato; Hiro-Yuki Hirano The regulation of floral organ number is closely associated with floral meristem size. Mutations in the gene FLORAL ORGAN NUMBER1 ( FON1 ) cause enlargement of the floral meristem in Oryza sativa (rice...

... division patterns are regulated differently at different stages of floral development. In early floral stages, the pattern of cell divisions is dependent on position in the floral meristem, and not on future organ identity. Later, during organogenesis, the layer contributions to the organs are controlled...

... separation between the function of floral meristem identity genes and the function of an antagonistic group of genes, which includes TERMINAL FLOWER 1 . We show that the activities of these genes are restricted to separate domains of the shoot apex by different mechanisms. Meristem identity genes...

...Mark P. Running; Jennifer C. Fletcher; Elliot M. Meyerowitz ABSTRACT The study of cell division control within developing tissues is central to understanding the processes of pattern formation. The floral meristem of angiosperms gives rise to floral organs in a particular number and pattern...

...Erik Souer; Alexander van der Krol; Daisy Kloos; Cornelis Spelt; Mattijs Bliek; Jos Mol; Ronald Koes ABSTRACT A main determinant of inflorescence architecture is the site where floral meristems are initiated. We show that in wild-type Petunia bifurcation of the inflorescence meristem yields two...

...Zhongchi Liu; Mark P. Running; Elliot M. Meyerowitz ABSTRACT We describe an Arabidopsis mutant, tso1 , which develops callus-like tissues in place of floral organs. The tso1 floral meristem lacks properly organized three cell layers, and the nuclei of these cells are irregular in size and shape...

...) gene. The defect is evident at all developmental stages and is restricted to shoot and floral meristems, whereas the root meristem is not affected. wus mutants fail to properly organize a shoot meristem in the embryo. Postembryoni-cally, defective shoot meristems are initiated repetitively...