[PDF] Chloroplast replication and chloroplast DNA synthesis in spinach leaves | Semantic Scholar
@article{Possingham1976ChloroplastRA, title={Chloroplast replication and chloroplast DNA synthesis in spinach leaves}, author={John V. Possingham and R. J. Rose}, journal={Proceedings of the Royal Society of London. Series B. Biological Sciences}, year={1976}, volume={193}, pages={295 - 305}, url={https://api.semanticscholar.org/CorpusID:2691108} }
Cultured leaf disks from young spinach leaves serve as a model system for studies of cell expansion and chloroplast replication during the development of spinach leaf cells and it is suggested that the size differences represent ploidy classes.