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Transportation and Accumulation of Storage Protein and Regulation of Genes Expression in Seeds
Xin-Qi Gao1,2*
1Collage of Life Science, Qufu Normal University, Qufu 273165, China; 2State key Laboratory of Plant Physiology and Biochemistry, China Agricultural University, Beijing 100094, China
Abstract: There are three transportation and accumulation routes of storage protein in seed: (1) storage protein is transported to protein storage vacuole (PSV) via endomembrane system and accumulated in PSV; (2) storage protein is accumulated in lumen of rough endoplasmic reticulum and become protein body; (3) storage protein is transported to PSV and accumulated in them， but dictyosome is not involved in this process. Regulation of seed storage protein genes expression is controlled under the interaction of cis-acting elements and trans-acting factors of these genes. Gene organization and chromatin structure are also been shown to be involved in seed-specific expression of the storage protein gene.
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