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THE PRESENCE OF PROTEASE‐DIGESTIBLE MATERIAL IN GOLGI VESICLES DURING ENDOSPERM DEVELOPMENT OF SELECTED CEREALS
Author(s) -
Bechtel Donald B.,
Gaines Ronald L.
Publication year - 1982
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1982.tb13331.x
Subject(s) - endosperm , biology , golgi apparatus , vacuole , hordeum vulgare , oryza sativa , avena , vesicle , protease , botany , hordeum , proteases , poaceae , agronomy , biochemistry , enzyme , cytoplasm , membrane , endoplasmic reticulum , gene
The presence of dictyosomes secreting densely stained vesicles throughout endosperm protein body formation was confirmed for four cereals (rice, Oryza sativa L.; hard red winter wheat, Triticum aestivum L.; winter feed barley and spring malting barley, Hordeum vulgare L.; oats, Avena sativa L.). The contents of the Golgi vesicles and protein bodies were digested with proteases for all cereals except rice. It was found in the case of rice that OsO 4 altered the proteins in the Golgi apparatus and protein bodies making them resistant to protease digestion. These results imply that the Golgi apparatus plays an important role in the concentration and transport of storage proteins into vacuoles.