plastid 的定义
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.
更多plastid例句
- 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.