Conversion of Proplastids to Amyloplasts in Tobacco Cultured Cells Is Accompanied by Changes in the Transcriptional Activities of Plastid Genes
- 1 October 1992
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 100 (2) , 1062-1066
- https://doi.org/10.1104/pp.100.2.1062
Abstract
When tobacco (Nicotiana tabacum L.) cultured cells (line BY-2) at the stationary phase were transferred to culture medium that contained cytokinin (benzyladenine) instead of auxin (2,4-dichlorophenoxyacetic acid), proplastids in the BY-2 cells were converted to amyloplasts within 48 h. The data obtained from in vitro transcription assays using isolated plastid-nucleoids (nuclei) strongly suggested that amyloplast formation in BY-2 cells was accompanied by changes in the transcriptional activities of plastid genes.Keywords
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