Differential expression of proteins induced by lead in the Dwarf Sunflower Helianthus annuus

Soluble proteins extracted from leaves of Dwarf Sunflowers exposed to Pb were resolved by two-dimensional gel electrophoresis. Four proteins were differentially expressed and very abundant. One protein spot contained mainly a chitinase III. The second spot contained a thaumatin-like protein, its expression is controlled at the transcription level.