Crops
Purdue and UC Davis find the 'accelerator pedal' that makes soybeans form more nodules
A study in PNAS led by Jianxin Ma and Blake Meyers shows a root peptide travelling up the xylem to regulate a shoot microRNA that returns to the roots to suppress a gene and boost nodulation under low nitrogen; the mechanism exists in soybean and common bean but not in model legumes, and a gene-edit