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Cell Press, Current Biology, 21(22), p. R919-R921, 2012
DOI: 10.1016/j.cub.2012.09.048
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Plant Development: How Long Is a Root?
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Abstract
The plant hormone cytokinin controls root growth by balancing the division and differentiation of stem cells. But what controls accumulation of cytokinin? A new study has identified a regulatory loop between a transcription factor, PHABULOSA, and cytokinin biosynthesis that creates robust domains of cytokinin activity.