Biosynthesis of Storage Proteins in Developing Rice Seeds

Biosynthesis of storage proteins in developing rice seeds.

Sodium dodecyl sulfate-polyacrylamide gel electrophoretic analysis of the starchy endosperm protein of rice (Oryza sativa L. Japonica cv Koshihikari) during seed development confirmed that storage protein begins to accumulate about 5 days after flowering. Two polypeptide groups, 22 to 23 and 37 to 39 kilodaltons, the components of glutelin, the major storage protein in rice seed, appeared 5 day...

Mechanism and regulation of galactomannan biosynthesis in developing leguminous seeds.

The galactomannans [ l ] are a group of watersoluble polysaccharides which are found in the endosperms of leguminous seeds. (Not all legume seeds are endospermic, but if an endosperm is present it will contain galactomannan). Structurally, legume-seed galactomannans comprise a linear ‘backbone’ of ( 1 + 4)-@-linked u-mannopyranosyl residues, which is laterally substituted by u-galactopyranosyl ...

Seed storage proteins: structures and biosynthesis.

The plant seed is not only an organ of propagation and dispersal but also the major plant tissue harvested by humankind. The amount of protein present in seeds varies from -10% (in cereals) to -40% (in certain legumes and oilseeds) of the dry weight, forming a major source of dietary protein. Although the vast majority of the individual proteins present in mature seeds have either metabolic or ...

The prolamin storage proteins of cereal seeds: structure and evolution.

Storage lipids and proteins of Euterpe edulis seeds.

Comparative studies on fatty acid and protein composition of the endosperm and embryo of palmito (Euterpe edulis Martius) were conducted using gas-liquid chromatography and sodium dodecyl sulfate-polyacrylamide gel electrophoresis. On a dry weight basis, the embryo contained extremely lower amounts of lipids and proteins than did the endosperm, which was associated with the scarce lipid and pro...