Proteomic analysis of secreted proteins from Arabidopsis thaliana seedlings: improved recovery following removal of phenolic compounds

Proteins secreted from the whole plant were recovered from Arabidopsis thaliana seedlings grown in liquid culture. The use of PVPP increased significantly the efficiency of mass mapping by MALDI-TOF. Fourty-four cell wall proteins were identified among which 31 belonging to all functional classes were not found in previous proteomic studies.