41. A typical example in plants is retrograde signaling from the plastid to control nuclear gene expression. 42. In contrast, it has no effect on the plastids of the highly developed vascular plants. 43. Two major types of organelle in mitochondria and plastids such as chloroplasts, originated as bacterial endosymbionts. 44. Their plastids also contain chlorophyll c and carotenoids ( the most widespread of those being fucoxanthin ). 45. They are eukaryotic, with a cell wall composed of cellulose and plastids surrounded by two membranes. 46. Still, " chromoplast " is more often used to denote plastids with pigments other than chlorophyll. 47. RNA editing occurs in the cell nucleus and cytosol, as well as within mitochondria and plastids . 48. This sulfolipid is present in plastid precursor for the formation of the sulfoquinovose group of this lipid. 49. A compilation of all available complete plastid genomes is maintained by the NCBI in a public repository. 50. Both the nucleus and the plastid of " C . velia " showed alveolate ancestry.
