PIP2 — Camelina sativa

Summary

CsPIP2 (CSA04G050740) in Camelina sativa encodes an aquaporin family protein with water channel activity, phospholipase D activity, and protein kinase activity. It is associated with membrane transport, particularly hydrogen peroxide and water transport, and localizes to the plasma membrane, plasmodesmata, and plant-type vacuole. The gene is linked to responses to abiotic stresses including drought, salt, freezing, and aluminum, as well as regulation of stomatal closure, circadian gene expression, and brassinosteroid signaling. Traits associated with CsPIP2 include photosynthetic rate, root hair length, flowering time, cellulose content, and disease responses to downy mildew and powdery mildew. Studies of related genes in other species associate the family with water flux, dehydration tolerance, stomatal movement, and pathogen resistance, though these functions are not yet established in Camelina.