Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2007 Oct;226(5):1207-18.
doi: 10.1007/s00425-007-0567-2. Epub 2007 Jun 15.

Modification of Cell Proliferation Patterns Alters Leaf Vein Architecture in Arabidopsis Thaliana

Affiliations

Modification of Cell Proliferation Patterns Alters Leaf Vein Architecture in Arabidopsis Thaliana

Julie Kang et al. Planta. .

Abstract

Formation of leaf vascular pattern requires regulation of a number of cellular processes, including cell proliferation. To assess the role of cell proliferation during vein order formation, leaf development in genetic lines exhibiting aberrant cell proliferation patterns due to altered expression patterns of ANT and ICK1 genes was analyzed. Modification of cell proliferation patterns alters the number of higher order veins and the number of minor tertiary veins remodeled as intersecondary veins in Arabidopsis rosette leaves. Minor vein complexity, as indicated by branch point and freely ending veinlet number, is highly correlated with a decrease or increase in cell proliferation. Observations of procambial strand formation in modified cell proliferation pattern lines showed that vein pattern is specified early in leaf development and that formation of freely ending veinlets is temporally correlated with the expansion of ground meristem when cell proliferation is terminated prematurely. Taken together, our observations indicate that: (1) genes that modulate cell proliferation play a key role in regulating the meristematic competence of ground meristem cells to form procambium and vein pattern during leaf development, and (2) ANT is a crucial part of this regulation.

Similar articles

See all similar articles

Cited by 19 articles

See all "Cited by" articles

References

    1. Plant Cell. 2001 Jul;13(7):1653-68 - PubMed
    1. Int Rev Cytol. 2002;217:1-39 - PubMed
    1. Plant J. 2000 Dec;24(5):613-23 - PubMed
    1. Trends Plant Sci. 2003 Apr;8(4):154-8 - PubMed
    1. Plant Cell. 2003 Sep;15(9):1951-61 - PubMed

LinkOut - more resources

Feedback