Cytokinins in tobacco and wheat chloroplasts. Occurrence and changes due to light/dark treatment.

  title={Cytokinins in tobacco and wheat chloroplasts. Occurrence and changes due to light/dark treatment.},
  author={Eva Benkov{\'a} and Erwin Witters and Walter van Dongen and Josef Kol{\'a}r and V{\'a}clav Motyka and Břetislav Brzobohat{\'y} and Harry A Van Onckelen and Ivana Mach{\'a}{\vc}kov{\'a}},
  journal={Plant physiology},
  volume={121 1},
Although cytokinins (CKs) affect a number of processes connected with chloroplasts, it has never been rigorously proven that chloroplasts contain CKs. We isolated intact chloroplasts from tobacco (Nicotiana tabacum L. cv SR1) and wheat (Triticum aestivum L. cv Ritmo) leaves and determined their CKs by liquid chromatography/tandem mass spectroscopy. Chloroplasts from both species contained a whole spectrum of CKs, including free bases (zeatin and isopentenyladenine), ribosides (zeatin riboside… CONTINUE READING

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