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KMID : 0368419920350010045
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Journal of Plant Biology
1992 Volume.35 No. 1 p.45 ~ p.51
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Changes of Protein Bodies in Endosperm Cells during Embryo Development of Ginseng (Panax ginseng C.A. Meyer) Seeds
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Abstract
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The changes of protein bodies in endosperm cells of both seeds with red seed coat and indehiscent seeds of Panax ginseng C.A. Meyer have been investigated in relation to the embryo development.
In the early stage of seeds with red seed coat, spherical spherosomes were distributed in endosperm cells. Protein bodies were formed from vacuoles containing the storage protein. Cell organelles were hardly observed in the cytoplasm. In the late stage of the seed with red seed coat, the endosperm was filled with spherosomes and protein bodies. The protein bodies consisted of amorphous inclusions with high electron density or proteinaceous matrix with even electron density.
In the seed of indehiscence, the protein body in endosperm cells contained globoids and protein crystalloids. The globoid of protein body had a electron dense materials. Umbiliform layer was formed between embryo and endosperm. The deformation patterns of endosperm cell wall and the cellulose microfibril were observed in endosperm cells near the umbiliform layer. Umbiliform layer consisted of lipid body and autolyzed cell debris.
The protein body of endosperm cell near the umbiliform layer showed various degenerative patterns, and so electron density of proteinaceous matrix was gradually decreased.
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