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Abstract Detail



Developmental and Structural Section

Odat, Osama [1], Scarpella, Enrico [2].

Control of leaf tissue patterning by cell proliferation.

The relative timing of cessation of cell proliferation and onset of cell differentiation is known to control tissue patterning of animal appendices such as vertebrate limbs. By contrast, it is unclear whether the relative timing of cessation of cell proliferation and onset of cell differentiation controls tissue patterning of plant appendices. Here we address this problem for the internal tissues of Arabidopsis leaves. In Arabidopsis leaves, internal, ground cells proliferate and differentiate into mesophyll and vascular tissues. By prolonging or prematurely ceasing ground cell proliferation, we show that cessation of ground cell proliferation terminates vascular differentiation by permitting mesophyll differentiation. Thus the relative timing of cessation of cell proliferation and onset of cell differentiation controls tissue patterning of plant as well as of animal appendices.


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1 - University of Alberta, Department of Biological Sciences , CW-405 Biological Sciences Building, Edmonton , AB, T6G 2E9, Canada
2 - University of Alberta , Department of Biological Sciences , CW-405 Biological Sciences Building , Edmonton, AB, T6G 2E9, Canada

Keywords:
Arabidopsis
Proliferation
Differentiation
leaf structure
Vascular.

Presentation Type: Oral Paper:Papers for Sections
Session: 45
Location: Salon 11/The Shaw Conference Centre
Date: Tuesday, July 28th, 2015
Time: 1:45 PM
Number: 45002
Abstract ID:788
Candidate for Awards:Katherine Esau Award,Maynard F. Moseley Award,CSPB President's Award for Best Student Presentation

Canceled

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