A key question in plant developmental biology is how local environmental information is perceived and coordinates development of the entire plant body. In plants, the deficiency of minerals such as nitrogen from soil is perceived by root systems and then induce systemic response to activate nitrogen-demand response. What is the mechanism to induce the systemic response by local signals and how is it experimentally verified?
In this lecture, we will read the following paper and learn the unique experimental approach to prove the coordination of plant development and environmental stimuli through long distance signaling.

Perception of root-derived peptides by shoot LRR-RKs mediates systemic N-demand signaling.
Ryo Tabata, Kumiko Sumida, Tomoaki Yoshii, Kentaro Ohyama, Hidefumi Shinohara, Yoshikatsu Matsubayashi Science, 346, 343-346 (2014)