For legume plants, a new route from shoot to root

A new study shows that legume plants regulate their symbiotic relationship with soil bacteria by using cytokinins—signaling molecules— that are transmitted through the plant structure from leaves into the roots to control the number of bacteria-holding nodules in the roots. This collaborative study was conducted by researchers from the National Institute for Basic Biology, the Graduate University for Advanced Studies (SOKENDAI), and the RIKEN Center for Sustainable Resource Science in Japan.

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