0000000000213127
AUTHOR
Sabine Zimmermann
Potasium nutrition in rice under salt stress: role of arbuscular mycorrhizal symbiosis?
Arbuscular mycorrhizal fungi (AMF) establish a symbiotic association with the roots of 80% of terrestrial plants and form complex tree-shaped feeding structures called arbuscules in colonized root cells. This association with AMF not only provides more efficient uptake of nutrients for the plant, but also confers protection against pathogens and increased tolerance to environmental stress such as salt stress [1]. Rice (Oryza sativa), the most salt-sensitive crop species amongst cereals, has a productivity strongly reduced around the world due to soil salinity/salinization and increased sea level (in deltas). High Na+ concentrations (salt stress conditions) impairs K+ uptake and inhibits man…
Take a Trip Through the Plant and Fungal Transportome of Mycorrhiza
International audience; Soil nutrient acquisition and exchanges through symbiotic plant–fungus interactions in the rhizosphere are key features for the current agricultural and environmental challenges. Improved crop yield and plant mineral nutrition through a fungal symbiont has been widely described. In return, the host plant supplies carbon substrates to its fungal partner. We review here recent progress on molecular players of membrane transport involved in nutritional exchanges between mycorrhizal plants and fungi. We cover the transportome, from the transport proteins involved in sugar fluxes from plants towards fungi, to the uptake from the soil and exchange of nitrogen, phosphate, p…