Editors' ChoicePlant biology

A Complex Network Makes Simple Pores

Sci. Signal.  30 Sep 2014:
Vol. 7, Issue 345, pp. ec271
DOI: 10.1126/scisignal.2005953

Stomata, the pores found on the surface of plant leaves, form at intervals from stem cells. Development of stomata is controlled by the SPEECHLESS transcription factor. Lau et al. surveyed the genes that SPEECHLESS controls. Targets include genes involved in hormone signaling, control of cell proliferation, and the specification of asymmetric cell fates. Despite the apparent simplicity of a single pore, the genetic network that generates that pore is anything but simple.

O. S. Lau, K. A. Davies, J. Chang, J. Adrian, M. H. Rowe, C. E. Ballenger, D. C. Bergmann, Direct roles of SPEECHLESS in the specification of stomatal self-renewing cells. Science 345, 1605–1609 (2014). [Abstract] [Full Text]

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