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Hiromitsu Nakajima, Takao Yokota, Nobutaka Takahashi, Takashi Matsumoto, Masao Noguchi, Changes in Endogenous Ribosyl-trans-zeatin and IAA Levels in Relation to the Proliferation of Tobacco Crown Gall Cells, Plant and Cell Physiology, Volume 22, Issue 8, December 1981, Pages 1405–1410, https://doi.org/10.1093/oxfordjournals.pcp.a076293
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Abstract
Changes in the contents of major endogenous plant hormones in tobacco crown gall cells, namely IAA and ribosyl-trans-zeatin, during cell growth were examined using HPLC and 14C-labeled plant hormones. The content of IAA was high at the early logarithmic stage, while that of ribosyl-trans-zeatin was high at the middle logarithmic stage. This suggests that cell growth is affected first by IAA, then by ribosyl-trans-zeatin.