SRPP — Lactuca sativa

Summary

LsSRPP, encoded by the gene LSAT_V11C500259740 on lettuce chromosome 5, is a member of the proline-rich protein family. The gene is associated with plant-type cell wall biogenesis, root hair cell development, and polar cell growth. It has been linked to responses to low humidity, phosphate starvation, ethylene, and heat acclimation, as well as seed development. The encoded protein localises to the cell periphery and plant-type cell wall. Phenotypic evidence connects LsSRPP to root hair development and seed viability. Studies of related genes in other species link the family to drought tolerance, salt tolerance, germination rate, and thermotolerance, as well as reduced root length, shorter root hairs, abnormal embryos, and reduced germination.