- Rellán-Álvarez, Rubén;
- Lobet, Guillaume;
- Lindner, Heike;
- Pradier, Pierre-Luc;
- Sebastian, Jose;
- Yee, Muh-Ching;
- Geng, Yu;
- Trontin, Charlotte;
- LaRue, Therese;
- Schrager-Lavelle, Amanda;
- Haney, Cara H;
- Nieu, Rita;
- Maloof, Julin;
- Vogel, John P;
- Dinneny, José R
Root systems develop different root types that individually sense cues from their local environment and integrate this information with systemic signals. This complex multi-dimensional amalgam of inputs enables continuous adjustment of root growth rates, direction, and metabolic activity that define a dynamic physical network. Current methods for analyzing root biology balance physiological relevance with imaging capability. To bridge this divide, we developed an integrated-imaging system called Growth and Luminescence Observatory for Roots (GLO-Roots) that uses luminescence-based reporters to enable studies of root architecture and gene expression patterns in soil-grown, light-shielded roots. We have developed image analysis algorithms that allow the spatial integration of soil properties, gene expression, and root system architecture traits. We propose GLO-Roots as a system that has great utility in presenting environmental stimuli to roots in ways that evoke natural adaptive responses and in providing tools for studying the multi-dimensional nature of such processes.