Ghazi IA et al. (2009) Further characterization of ferric--phytosiderophore transporters ZmYS1 and HvYS1 in maize and barley. Journal of Experimental Botany 34:251-261.
Chiba Y et al. (2009) HvLsi1 is a silicon influx transporter in barley. Plant Journal 57:810-818.