Overexpression of OsHAK5 potassium transporter enhances virus resistance in rice (Oryza sativa).

Intracellular potassium (K ) transported by plants under the action of a number of transport proteins is crucial for plant survival under distinct abiotic and biotic stresses. A correlation between K status and disease incidence has been found in many studies, but the roles of K in regulating disease resistance to viral diseases remain elusive. Here, we report that HIGH-AFFINITY K TRANSPORTER 5 (OsHAK5) regulates the infection of rice grassy stunt virus (RGSV), a negative-sense single-stranded bunyavirus, in rice (Oryza sativa).