Taking the very first steps: from polarity to axial domains in the early Arabidopsis embryo
- PMID: 21172809
- DOI: 10.1093/jxb/erq398
Taking the very first steps: from polarity to axial domains in the early Arabidopsis embryo
Abstract
Arabidopsis embryos follow a predictable sequence of cell divisions, facilitating a genetic analysis of their early development. Both asymmetric divisions and cell-to-cell communication are probably involved in generating specific gene expression domains along the main axis within the first few division cycles. The function of these domains is not always understood, but recent work suggests that they may serve as a basis for organizing polar auxin flux. Auxin acts as systemic signal throughout the life cycle and, in the embryo, has been demonstrated to direct formation of the main axis and root initiation at the globular stage. At about the same time, root versus shoot fates are imposed on the incipient meristems by the expression of antagonistic regulators at opposite poles of the embryo. Some of the key features of the embryonic patterning process have emerged over the past few years and may provide the elements of a coherent conceptual framework.
Similar articles
-
Cell-cell communication in Arabidopsis early embryogenesis.Eur J Cell Biol. 2010 Feb-Mar;89(2-3):225-30. doi: 10.1016/j.ejcb.2009.11.010. Epub 2010 Jan 19. Eur J Cell Biol. 2010. PMID: 20031252 Review.
-
The PIN auxin efflux facilitator network controls growth and patterning in Arabidopsis roots.Nature. 2005 Jan 6;433(7021):39-44. doi: 10.1038/nature03184. Nature. 2005. PMID: 15635403
-
The GATA factor HANABA TARANU is required to position the proembryo boundary in the early Arabidopsis embryo.Dev Cell. 2010 Jul 20;19(1):103-13. doi: 10.1016/j.devcel.2010.06.004. Dev Cell. 2010. PMID: 20643354
-
Auxin triggers transient local signaling for cell specification in Arabidopsis embryogenesis.Dev Cell. 2006 Feb;10(2):265-70. doi: 10.1016/j.devcel.2005.12.001. Dev Cell. 2006. PMID: 16459305
-
Cellular and molecular events in a newly organizing lateral root meristem.Philos Trans R Soc Lond B Biol Sci. 1995 Oct 30;350(1331):39-43. doi: 10.1098/rstb.1995.0135. Philos Trans R Soc Lond B Biol Sci. 1995. PMID: 8577848 Review.
Cited by
-
LONO1 encoding a nucleoporin is required for embryogenesis and seed viability in Arabidopsis.Plant Physiol. 2012 Oct;160(2):823-36. doi: 10.1104/pp.112.202192. Epub 2012 Aug 16. Plant Physiol. 2012. PMID: 22898497 Free PMC article.
-
DISTAG/TBCCd1 Is Required for Basal Cell Fate Determination in Ectocarpus.Plant Cell. 2017 Dec;29(12):3102-3122. doi: 10.1105/tpc.17.00440. Epub 2017 Dec 5. Plant Cell. 2017. PMID: 29208703 Free PMC article.
-
Gene Expression Profiles in Rice Developing Ovules Provided Evidence for the Role of Sporophytic Tissue in Female Gametophyte Development.PLoS One. 2015 Oct 27;10(10):e0141613. doi: 10.1371/journal.pone.0141613. eCollection 2015. PLoS One. 2015. PMID: 26506227 Free PMC article.
-
Non-SMC elements 1 and 3 are required for early embryo and seedling development in Arabidopsis.J Exp Bot. 2017 Feb 1;68(5):1039-1054. doi: 10.1093/jxb/erx016. J Exp Bot. 2017. PMID: 28207059 Free PMC article.
-
Axis formation in Arabidopsis - transcription factors tell their side of the story.Curr Opin Plant Biol. 2012 Feb;15(1):4-9. doi: 10.1016/j.pbi.2011.10.007. Epub 2011 Nov 11. Curr Opin Plant Biol. 2012. PMID: 22079785 Free PMC article. Review.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Miscellaneous
