Centre for Organismal Studies (COS) Heidelberg 1 article published in JoVE Genetics Inducible, Cell Type-Specific Expression in Arabidopsis thaliana Through LhGR-Mediated Trans-Activation Vadir López-Salmerón*1, Ann-Kathrin Schürholz*2, Zhenni Li2, Theresa Schlamp1, Christian Wenzl3, Jan U. Lohmann3, Thomas Greb1, Sebastian Wolf2 1Department of Developmental Physiology, Centre for Organismal Studies (COS) Heidelberg, 2Department of Cell Biology, Centre for Organismal Studies (COS) Heidelberg, 3Department of Stem Cell Biology, Centre for Organismal Studies (COS) Heidelberg Here, we describe the generation and application of a set of transgenic Arabidopsis thaliana lines enabling inducible, tissue-specific expression in the three main meristems, the shoot apical meristem, the root apical meristem, and the cambium.