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- W4230754109 abstract "A study was made of the number of plastids and mitochondria present in generative cells of Solanum immediately after microspore mitosis, and the fate of these organelles during development of the pollen was determined. Changes were followed via electron microscopy of anthers of S. chacoense and S. tuberosum Group Phureja × S. chacoense. In earliest stages the generative cells were oval and had one surface along the intine and other surfaces in contact with the vegetative cell. As the pollen matured the generative cells elongated, became spindle-shaped, and were completely engulfed in the vegetative cells. At the earliest stages studied, both mitochondria and plastids were present in the generative cell. Plastids of the generative cell were, in contrast to those of the vegetative cells, fewer, smaller, and lacking in starch. Through the maturation stages the content of these organelles in the vegetative cells remained unchanged. While the generative cells retained mitochondria until anthesis, their plastids disappeared completely during maturation. This selective loss during generative cell maturation could lead to transmission of those characteristics encoded in plastid DNA through the pistillate parent only. The mechanism could explain earlier genetic evidence that plastid characters of Solanum were transmitted uniparentally." @default.
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- W4230754109 date "1977-04-01" @default.
- W4230754109 modified "2023-10-05" @default.
- W4230754109 title "Changes in Plastid and Mitochondrion Content During Maturation of Generative Cells of Solanum (Solanaceae)" @default.
- W4230754109 doi "https://doi.org/10.2307/2441766" @default.
- W4230754109 hasPublicationYear "1977" @default.
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