Coordination of Multilayered Signalling Pathways on Vascular Cambium Activity
Annual Plant Reviews online 2020 Volume 3
Issue 3, August 2020
Sining Wang,
Huanzhong Wang,
Sining Wang
Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT, USA
Search for more papers by this authorHuanzhong Wang
Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT, USA
Institute for System Genomics, University of Connecticut, Storrs, CT, USA
Search for more papers by this authorSining Wang,
Huanzhong Wang,
Sining Wang
Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT, USA
Search for more papers by this authorHuanzhong Wang
Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT, USA
Institute for System Genomics, University of Connecticut, Storrs, CT, USA
Search for more papers by this authorAbstract
Secondary growth depends on the activity of cambial stem cells, which proliferate, and then descendant cells differentiate into the transport tissues, secondary phloem, and secondary xylem. The proliferation of cambial stem cells is regulated by various signals, including long-distance hormonal signalling from apical meristems, and short-range peptide signals from surrounding tissues. These long- and short-distance signalling pathways interact and coordinately modulate cambium activity. Furthermore, a large number of transcription factors, often in gene families, regulate cambium cell division. In this article, we discuss the coordination of the aforementioned multilayered signalling pathways and highlight the new discoveries on the control of cambial activity.
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