CNH1 — Verticillium dahliae

Summary

VDAG_09699 (VdCNH1, also known as VdSOD2, VdNHA1) in Verticillium dahliae encodes a Na+/H+ antiporter with sodium:hydrogen exchanger and potassium transporter activity. This plasma membrane and perinuclear ER membrane protein is associated with sodium and potassium ion homeostasis, proton export, membrane potential regulation, osmotic response, morphogenesis, and detoxification. The gene is linked to numerous phenotypes including absent biofilm formation, absent hyperosmotic stress resistance, increased ionic stress resistance, increased desiccation resistance, increased cell death, arrested vegetative growth, and abnormal respiratory and fermentative metabolism. It has also been connected to photosynthetic rate. Studies of related genes in other species link the family to sodium concentration, potassium content, and oxidative stress response.