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PMID: 22527389 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't

Genetic approach towards the identification of auxin-cytokinin crosstalk components involved in root development.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences ·Vol. 367 ·No. 1595 ·2012-06-05 ·Pages 1469-78

Bielach A, Duclercq J, Marhavý P, Benková E

Abstract

Phytohormones are important plant growth regulators that control many developmental processes, such as cell division, cell differentiation, organogenesis and morphogenesis. They regulate a multitude of apparently unrelated physiological processes, often with overlapping roles, and they mutually modulate their effects. These features imply important synergistic and antagonistic interactions between the various plant hormones. Auxin and cytokinin are central hormones involved in the regulation of plant growth and development, including processes determining root architecture, such as root pole establishment during early embryogenesis, root meristem maintenance and lateral root organogenesis. Thus, to control root development both pathways put special demands on the mechanisms that balance their activities and mediate their interactions. Here, we summarize recent knowledge on the role of auxin and cytokinin in the regulation of root architecture with special focus on lateral root organogenesis, discuss the latest findings on the molecular mechanisms of their interactions, and present forward genetic screen as a tool to identify novel molecular components of the auxin and cytokinin crosstalk.

MeSH Terms
Arabidopsis/drug effects,genetics,growth & development,metabolism Arabidopsis Proteins/genetics,metabolism Cytokinins/metabolism,pharmacology Ethyl Methanesulfonate/pharmacology Gene Expression Regulation, Plant Genes, Plant Indoleacetic Acids/metabolism,pharmacology Membrane Transport Proteins/genetics,metabolism Meristem/drug effects,growth & development,metabolism Mutation Plant Growth Regulators/metabolism Plant Roots/drug effects,growth & development,metabolism Plants, Genetically Modified/drug effects,genetics,growth & development,metabolism Seedlings/drug effects,growth & development,metabolism Signal Transduction
Chemicals
Arabidopsis Proteins Cytokinins Indoleacetic Acids Membrane Transport Proteins PIN1 protein, Arabidopsis Plant Growth Regulators Ethyl Methanesulfonate
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Bielach Agnieszka
Department of Plant Systems Biology, VIB, Technologiepark 927, 9052 Ghent, Belgium.
Duclercq Jérôme
Marhavý Peter
Benková Eva
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Article Info
Journal
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
Abbr.
Philos Trans R Soc Lond B Biol Sci
ISSN
1471-2970
DOI
10.1098/rstb.2011.0233
Published
2012-06-05
Pages
1469-78
Language
English
Region
England
NLM ID
7503623
PMCID
PMC3321684
Subset
IM
External Links
PubMed source DOI: 10.1098/rstb.2011.0233 PMC Full Text View journal details
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