Plant development. Integration of growth and patterning during vascular tissue formation in Arabidopsis
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.
Grant support
I 1476
Austrian Science Fund FWF - Austria
PubMed
25104393
DOI
10.1126/science.1255215
PII: 345/6197/1255215
Knihovny.cz E-resources
- MeSH
- Aminohydrolases MeSH
- Arabidopsis drug effects genetics growth & development MeSH
- Cell Division genetics physiology MeSH
- Plant Vascular Bundle drug effects growth & development MeSH
- Cytokines biosynthesis MeSH
- Gene Regulatory Networks MeSH
- Nuclear Proteins genetics MeSH
- Indoleacetic Acids metabolism pharmacology MeSH
- Arabidopsis Proteins genetics metabolism MeSH
- Gene Expression Regulation, Plant MeSH
- Body Patterning drug effects genetics physiology MeSH
- Trans-Activators metabolism MeSH
- Basic Helix-Loop-Helix Transcription Factors metabolism MeSH
- Gene Expression Regulation, Developmental MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Research Support, U.S. Gov't, Non-P.H.S. MeSH
- Names of Substances
- Aminohydrolases MeSH
- cytokinin riboside 5'-monophosphate phosphoribohydrolase, Arabidopsis MeSH Browser
- Cytokines MeSH
- Nuclear Proteins MeSH
- Indoleacetic Acids MeSH
- LHW protein, Arabidopsis MeSH Browser
- Arabidopsis Proteins MeSH
- TARGET OF MP 5 protein, Arabidopsis MeSH Browser
- Trans-Activators MeSH
- Basic Helix-Loop-Helix Transcription Factors MeSH
Coordination of cell division and pattern formation is central to tissue and organ development, particularly in plants where walls prevent cell migration. Auxin and cytokinin are both critical for division and patterning, but it is unknown how these hormones converge upon tissue development. We identify a genetic network that reinforces an early embryonic bias in auxin distribution to create a local, nonresponding cytokinin source within the root vascular tissue. Experimental and theoretical evidence shows that these cells act as a tissue organizer by positioning the domain of oriented cell divisions. We further demonstrate that the auxin-cytokinin interaction acts as a spatial incoherent feed-forward loop, which is essential to generate distinct hormonal response zones, thus establishing a stable pattern within a growing vascular tissue.
Department of Biology University of Pennsylvania Philadelphia PA 190104 6084 USA
Division of Human Nutrition Wageningen University Dreijenlaan 2 6703HA Wageningen the Netherlands
Laboratory of Biochemistry Wageningen University Dreijenlaan 3 6703HA Wageningen the Netherlands
References provided by Crossref.org
RAF-like protein kinases mediate a deeply conserved, rapid auxin response
Cytokinins - regulators of de novo shoot organogenesis
Transcriptional control of Arabidopsis seed development
An Essential Function for Auxin in Embryo Development
Selective auxin agonists induce specific AUX/IAA protein degradation to modulate plant development
GEO
GSE56868
