Modifications of seed storage proteins during germination and seedling growth of faba bean cotyledons

摘要

The SDS-PAGE patterns of two varieties of Vicia faba L. cotyledons were analysed to evaluate the qualitative changes of the major storage proteins, legumins (11S), vicilins (7S) and albumins (2S) during germination and seedling growth. The results confirm previous findings that legume storage proteins are mainly mobilised after germination and during seedling growth. Legumin electrophoretic pattern showed their most apparent and important changes 3 days after imbibition (DAI), because of the number of proteins affected. Vicilin breakdown started earlier, during the germination phase (1-2 DAI). Albumin mobilisation was related to the late seedling growth.