In this episode of our Three Minute Egghead podcast, UC Davis plant biologist Siobhan Brady talks about her work on roots.
Roots are the key innovation that allowed plants to conquer the land. They allow a plant to explore its environment, seeking out water and nutrients. A cell type within roots called xylem transports water and also provides support for land plants, allowing them to grow swiftly like a field of corn or reach towering heights of a sequoia.
Brady’s lab is looking at the network of genes that work together to control how xylem cells develop and grow, looking especially at the lab plant Arabidopsis, domestic tomato and its wild relatives, and the African staple crop sorghum.