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Arabidopsis Book. 2015 Jul 22;13:e0181. doi: 10.1199/tab.0181. eCollection 2015.

A Journey Through a Leaf: Phenomics Analysis of Leaf Growth in Arabidopsis thaliana.

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1
Department of Plant Systems Biology, VIB, B-9052 Gent, Belgium ; Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Gent, Belgium.

Abstract

In Arabidopsis, leaves contribute to the largest part of the aboveground biomass. In these organs, light is captured and converted into chemical energy, which plants use to grow and complete their life cycle. Leaves emerge as a small pool of cells at the vegetative shoot apical meristem and develop into planar, complex organs through different interconnected cellular events. Over the last decade, numerous phenotyping techniques have been developed to visualize and quantify leaf size and growth, leading to the identification of numerous genes that contribute to the final size of leaves. In this review, we will start at the Arabidopsis rosette level and gradually zoom in from a macroscopic view on leaf growth to a microscopic and molecular view. Along this journey, we describe different techniques that have been key to identify important events during leaf development and discuss approaches that will further help unraveling the complex cellular and molecular mechanisms that underlie leaf growth.

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