Shaping of a three-dimensional carnivorous trap through modulation of a planar growth mechanism.

ABSTRACT: Leaves display a remarkable range of forms, from flat sheets with simple outlines to cup-shaped traps. Although much progress has been made in understanding the mechanisms of planar leaf development, it is unclear whether similar or distinctive mechanisms underlie shape transformations during development of more complex curved forms. Here, we use 3D imaging and cellular and clonal analysis, combined with computational modelling, to analyse the development of cup-shaped traps of the carnivorous plant Utricularia gibba. We show that the transformation from a near-spherical form at early developmental stages to an oblate spheroid with a straightened ventral midline in the mature form can be accounted for by spatial variations in rates and orientations of growth. Different hypotheses regarding

SUBMITTER: Lee KJI 

PROVIDER: S-EPMC6786542 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature