Zinc regulates symbiotic nitrogen fixation in response to soil nitrate
Plant Science Research WeeklyLegume plants inhibit the energy-intensive process of symbiotic nitrogen fixation when sufficient nitrate is present, primarily through nodule senescence. However, the nodule-specific genetic regulatory mechanisms of nitrate sensing and nodule senescence are poorly understood. A recent study by Lin and…
Diurnal switches in diazotrophic lifestyle increase nitrogen contribution to cereals
Plant Science Research WeeklyUnlike legumes, which form symbiotic associations with nitrogen-fixing bacteria (diazotrophs), high-yielding cereal crops are usually supplemented with inorganic fertilizers that are both energetically and environmentally problematic. Some non-legumes can obtain nitrogen from associations with free-living…