What do auxins do

The tips have been removed. No light reaches the tips. More light reaches one side of the tips. No auxin is produced. Equal concentration of auxin on both sides. Greater concentration of auxin on the shaded side. The stems do not grow longer. The stems grow evenly and longer on both sides.

Clouse, R. Coudert, Y. Genetic control of root development in rice, the model cereal. Trends Plant Sci. Davies, P. Dordrecht: Kluwer Academic Publishers. Delbarre, A. Comparison of mechanisms controlling uptake and accumulation of 2,4-dichlorophenoxy acetic acid, naphthalene-l-acetic acid, and indoleacetic acid in suspension-cultured tobacco cells. Planta , — Dhonukshe, P. Development , — Ding, Z. ER-localized auxin transporter PIN8 regulates auxin homeostasis and male gametophyte development in Arabidopsis.

Dudlers, R. Structure of an mdr-like Gene from Arabidopsis thaliana. Pubmed Abstract Pubmed Full Text. Egan, A. Applications of next-generation sequencing in plant biology. Estelle, M. Polar auxin transport.

New support for an old model. Plant Cell 10, — Feng, X. Auxin flow in anther filaments is critical for pollen grain development through regulating pollen mitosis.

Plant Mol. Feraru, E. Evolution and structural diversification of PILS putative auxin carriers in plants. Forestan, C. The maize PIN gene family of auxin transporters.

ZmPIN1-mediated auxin transport is related to cellular differentiation during maize embryogenesis and endosperm development. Fozard, J. A, King, J. Friml, J. AtPIN4 mediates sink-driven auxin gradients and root patterning in Arabidopsiss.

Gallavotti, A. The role of auxin in shaping shoot architecture. The relationship between auxin transport and maize branching. Ganguly, A. Plant Cell 1— Garcia, O. Geisler, M. The ABC of auxin transport: the role of p-glycoproteins in plant development. FEBS Lett. Auxin transport during root gravitropism: transporters and techniques. Habets, M. Tansley review PIN-driven polar auxin transport in plant developmental plasticity: a key target for environmental and endogenous signals.

New Phytol. Higgins, C. Hochholdinger, F. From weeds to crops: genetic analysis of root development in cereals. Tissue-specific expression of AUX1 in maize roots. Jasinski, M. The ATP-binding cassette transporters? Johal, G. Crop Sci. Kamimoto, Y. Plant Cell Physiol. Kaneda, M. ABC transporters coordinately expressed during lignification of Arabidopsis stems include a set of ABCBs associated with auxin transport. Kang, J. Plant ABC transporters. Arabidopsis Book 9:e Kende, H. Plant Cell 9, — Kierzkowski, D.

Interaction between meristem tissue layers controls phyllotaxis. Cell 26, — Kleine-vehn, J. Gravity-induced PIN transcytosis for polarization of auxin fl uxes in gravity-sensing root cells.

Kleine-Vehn, J. Recycling, clustering, and endocytosis jointly maintain PIN auxin carrier polarity at the plasma membrane. Kramer, E. Auxin transport: a field in flux. Genome Biol. Krothapalli, K. Forward genetics by genome sequencing reveals that rapid cyanide release deters insect herbivory of Sorghum bicolor. Genetics , — Lampugnani, E. Auxin controls petal initiation in Arabidopsis.

Larkin, M. A, Blackshields, G. A, McWilliam, H. Clustal W and Clustal X version 2. Bioinformatics 23, — Lee, M. Lewis, D. Auxin transport into cotyledons and cotyledon growth depend similarly on the ABCB19 Multidrug Resistance-like transporter.

Leyser, O. The power of auxin in plants. Liang, Z. Genomics 41, 63— Lin, R. Luschnig, C. EIR1, a root-specific protein involved in auxin transport, is required for gravitropism in Arabidopsis thaliana. Marchant, A. AUX1 promotes lateral root formation by facilitating indoleacetic acid distribution between sink and source tissues in the Arabidopsis seedling.

Plant Cell 14, — McLamore, E. Non-invasive quantification of endogenous root auxin transport using an integrated flux microsensor technique. McSteen, P. Auxin and monocot development. Miao, J. Cell Res. Miyashita, Y. Identification and expression analysis of PIN genes in rice. Mohanty, A. Advancing cell biology and functional genomics in maize using fluorescent protein-tagged lines. Auxin control of embryo patterning. Mravec, J. AtPIN2 defines a locus of Arabidopsis for root gravitropism control.

EMBO J. Auxin, cytokinin and the control of shoot branching. Multani, D. A, Blakeslee, J. Loss of an MDR transporter in compact stalks of maize br2 and sorghum dw3 mutants. Science , 81— Nagashima, A. Noh, B. Multidrug resistance -like genes of Arabidopsis required for auxin transport and auxin-mediated development. Plant cell 13, — A division in PIN-mediated auxin patterning during organ initiation in grasses.

PLoS Comput. Okada, K. Requirement of the auxin polar transport system in early stages of Arabidopsis floral bud formation. Plant Cell 3, Pang, K. Gene , — Parry, G. Novel auxin transport inhibitors phenocopy the auxin influx carrier mutation aux1. Plant Cell 24, — Reinhardt, D. Regulation of phyllotaxis by polar auxin transport. Robert, S. ABP1 mediates auxin inhibition of clathrin-dependent endocytosis in Arabidopsis. As auxin induces cell division at physiological concentrations, it can be used in a balanced cocktail with another growth regulator, cytokinin, to promote cell proliferation in cell culture or in vitro propagation.

This knowledge allowed, for instance, the emergence of low cost orchids and virus-free potatoes. Detailed knowledge of the mechanism of action of auxin has recently also led to powerful new technology in non-plant laboratories.

Finally, considering the key role of auxin in plant development, understanding how auxin works will help in elucidating how fundamental developmental processes are controlled. Besides the fascination in revealing how a complex living organism is wired, one can conceive ways to engineer plant development using knowledge gained from auxin-dependent processes. But this is one idea among many that this fascinating molecule may lead us towards in the future. Abel S, Theologis A. Odyssey of auxin.

Cold Spring Harb Perspect Biol. Sites and regulation of auxin biosynthesis in Arabidopsis roots. Plant Cell. An auxin gradient and maximum in the Arabidopsis root apex shown by high-resolution cell-specific analysis of IAA distribution and synthesis.

Auxin transport routes in plant development. Article PubMed Google Scholar. Superroot, a recessive mutation in Arabidopsis, confers auxin overproduction.

TAA1-mediated auxin biosynthesis is essential for hormone crosstalk and plant development. Requirement of the Auxin polar transport system in early stages of Arabidopsis floral bud formation. Perrot-Rechenmann C. Cellular responses to auxin: division versus expansion.

Weijers D, Wagner D. Transcriptional responses to the auxin hormone. Annu Rev Plant Biol. Recapitulation of the forward nuclear auxin response pathway in yeast. Up in the air: untethered factors of auxin response. Google Scholar. Auxin perception: in the IAA of the beholder. Physiol Plant. Different auxin response machineries control distinct cell fates in the early plant embryo. Dev Cell. Cistrome and epicistrome features shape the regulatory DNA landscape.

J Bioinform Comput Biol. Sphere of influence of indole acetic acid and nitric oxide in bacteria. J Basic Microbiol. Unraveling the evolution of auxin signaling. Plant Physiol. Auxin-mediated transcriptional system with a minimal set of components is critical for morphogenesis through the life cycle in Marchantia polymorpha. PLoS Genet. Bennett T, Leyser O. The auxin question: a philosophical overview. Auxin and its role in plant development. Reporters for sensitive and quantitative measurement of auxin response.

Nat Methods. An auxin-based degron system for the rapid depletion of proteins in non-plant cells. Hardtke CS, Berleth T. EMBO J. Plant J. Plant development is regulated by a family of auxin receptor F box proteins. Download references. Research on auxin response in D. You can also search for this author in PubMed Google Scholar. Correspondence to Dolf Weijers. Reprints and Permissions. Paque, S. BMC Biol 14, 67 Download citation.

Published : 10 August Anyone you share the following link with will be able to read this content:. Sorry, a shareable link is not currently available for this article.