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dc.contributor.author E. en_US
dc.contributor.author P. en_US
dc.contributor.author Michael A. en_US
dc.contributor.author E. N. en_US
dc.date.accessioned 2009-09-08T15:14:14Z
dc.date.available 2009-09-08T15:14:14Z
dc.date.issued 2004-03-11 en_US
dc.identifier http://dx.doi.org/10.1111/j.1469-8137.2004.01031.x en_US
dc.identifier.citation Stoynova-Bakalova , E , Petrov , P , Hall , M A & Karanov , E N 2004 , ' Cell division and cell expansion in cotyledons of Arabidopsis seedlings ' New Phytologist , pp. 471-479 . , 10.1111/j.1469-8137.2004.01031.x en_US
dc.identifier.other PURE: 120590 en_US
dc.identifier.other dspace: 2160/3008 en_US
dc.identifier.uri http://hdl.handle.net/2160/3008
dc.description.abstract Here, using light microscopy, we studied the cellular basis of growth of Arabidopsis cotyledons during postembryonic development. • Analysis of serial paradermal sections of developing cotyledons revealed that early growth involved cell enlargement and some cell division. The daughter cells remained tightly packed in growing clusters, which enabled us to monitor both divisions and cell enlargement. • By contrast to other epigeal cotyledons, cells of all mesophyll layers could enter division. The cells in the cotyledon margins displayed a higher proliferative activity; however, the orientation of the division plane did not permit cells at the margins to give rise to tissue internally, nor to generate new cell layers. Exogenous cytokinin stimulated both cell expansion and cell division in attached dark-grown cotyledons. Light stimulated cell growth. Higher-levels of endogenous cytokinins in the amp1 mutant were confirmed to enhance the light-stimulated process of cell enlargement in cotyledons of dark-grown seedlings. • This work demonstrates an approach to use Arabidopsis cotyledons as an experimental system and provides a framework for molecular–genetic analysis of cellular dynamics during the growth of this organ. en_US
dc.format.extent 9 en_US
dc.relation.ispartof New Phytologist en_US
dc.title Cell division and cell expansion in cotyledons of Arabidopsis seedlings en_US
dc.contributor.pbl Aberystwyth University en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US


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