plastid
/plas-tid/US // ˈplæs tɪd //UK // (ˈplæstɪd) //
色素体,质体,色素细胞,质子
Definitions
n.名词 noun
- 1
Cell Biology.
- : a small, double-membraned organelle of plant cells and certain protists, occurring in several varieties, as the chloroplast, and containing ribosomes, prokaryotic DNA, and, often, pigment.
Examples
Even malaria parasites still carry a plastid genome, Molina noted, and their last photosynthetic ancestor lived hundreds of millions of years ago.
As the tissue organization in the graft reestablished itself, the plastids returned to the normal size for chloroplasts.
The unnucleated plastid might be called primitive cell (protocytos), and the ordinary nucleated one the nuclear cell (caryocytos).
Vacuoles are seen in cells; and there is an opinion that these may be a special kind of plastid: some vacuoles pulsate.
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