Starch breakdown in developing soybean seeds(Glycine max cv. Enrei)
| Autor: | Toshio Sugimoto, Yukio Kawamura, Kyoko Saio, Mitsuru Monma, Michiko Monma |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
0106 biological sciences
chemistry.chemical_classification Phytic acid Starch Endoplasmic reticulum fungi food and beverages 010603 evolutionary biology 01 natural sciences General Biochemistry Genetics and Molecular Biology Glycogen phosphorylase chemistry.chemical_compound Enzyme chemistry Biochemistry Glycine Amyloplast Food science General Agricultural and Biological Sciences 010606 plant biology & botany Phosphorolysis |
| Zdroj: | Agricultural and Biological Chemistry. 55:67-71 |
| ISSN: | 1881-1280 0002-1369 |
| Popis: | Immature soybean seeds accumulate starch as a transient reserve material that declines later in seed development. Phosphorylase activity in cotyledons rapidly increased 40–50 days after flowering (DAF) corresponding to the starch breakdown. Decomposition of starch granules was intracellularly compartmented to amyloplasts which were associated with rough endoplasmic reticulum. Simultaneously with the phosphorylase activation, phytase activity appeared and increased till 45 DAF, and transitory decline of phytic acid was observed at the maximum of phytase activity. These results suggest that phosphorolysis may be involved in starch breakdown, and that phytic acid is mobilized in developing soybean seeds. |
| Databáze: | OpenAIRE |
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