A highly purified plasma membrane fraction from rice Xudao 3 (oryza sativa) root tips was isolated by two phase partition system. Then we studied the changes of plasma membrane proteome under salt stress with IEF/SDS-PAGE two dimensional gel electrophoresis and separated the multiple span membrane strongly hydrophobic proteins with SDS-PAGE. The stress response proteins in plasma membrane were identified by MALDI-TOF/TOF and LC-MS/MS. Furthermore, the identified proteins were confirmed on mRNA level by real...