Novel functions of the Arabidopsis transcription factor TCP5 in petal development and ethylene biosynthesis.

ABSTRACT: The flowers of most dicotyledons have petals that, together with the sepals, initially protect the reproductive organs. Later during development petals are required to open the flower and to attract pollinators. This diverse set of functions demands tight temporal and spatial regulation of petal development. We studied the functioning of the Arabidopsis thaliana TCP5-like transcription factors (TFs) in petals. Overexpression of TCP5 in petal epidermal cells results in smaller petals, whereas tcp5 tcp13 tcp17 triple knockout lines have wider petals with an increased surface area. Comprehensive expression studies revealed effects of TCP5-like TFs on the expression of genes related to the cell cycle, growth regulation and organ growth. Additionally, the ethylene biosynthesis genes 1-amino-cyc

SUBMITTER: van Es SW 

PROVIDER: S-EPMC6001666 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature