Journal ArticleDOI
Arabidopsis AUX1 gene: a permease-like regulator of root gravitropism.
Malcolm J. Bennett,Alan Marchant,Haydn G. Green,Sean T. May,Sally Ward,Paul A. Millner,Amanda R. Walker,Burkhard Schulz,Kenneth A. Feldmann +8 more
TLDR
The cloned AUX1 gene can restore the auxin-responsiveness of transgenic aux1 roots and suggest thatAUX1 mediates the transport of an amino acid-like signaling molecule that regulates root gravitropic curvature.Abstract:
The plant hormone auxin regulates various developmental processes including root formation, vascular development, and gravitropism. Mutations within the AUX1 gene confer an auxin-resistant root growth phenotype and abolish root gravitropic curvature. Polypeptide sequence similarity to amino acid permeases suggests that AUX1 mediates the transport of an amino acid-like signaling molecule. Indole-3-acetic acid, the major form of auxin in higher plants, is structurally similar to tryptophan and is a likely substrate for the AUX1 gene product. The cloned AUX1 gene can restore the auxin-responsiveness of transgenic aux1 roots. Spatially, AUX1 is expressed in root apical tissues that regulate root gravitropic curvature.read more
Citations
More filters
Journal ArticleDOI
Auxin: regulation, action, and interaction.
Andrew Woodward,Bonnie Bartel +1 more
TL;DR: Nearly six decades after the structural elucidation of IAA, many aspects of auxin metabolism, transport and signalling are well established; however, more than a few fundamental questions and innumerable details remain unresolved.
Journal ArticleDOI
Regulation of phyllotaxis by polar auxin transport.
Didier Reinhardt,Eva-Rachele Pesce,Pia A. Stieger,Therese Mandel,Kurt Baltensperger,Malcolm J. Bennett,Jan Traas,Jiří Friml,Cris Kuhlemeier +8 more
TL;DR: It is shown that proteins involved in auxin transport regulate phyllotaxis, and data indicate that auxin is transported upwards into the meristem through the epidermis and the outermostMeristem cell layer.
Journal ArticleDOI
An auxin-dependent distal organizer of pattern and polarity in the Arabidopsis root
Sabrina Sabatini,Dimitris Beis,Harald Wolkenfelt,Jane Murfett,Tom J. Guilfoyle,Jocelyn E. Malamy,Philip N. Benfey,Ottoline Leyser,Nicole Bechtold,Peter Weisbeek,Ben Scheres +10 more
TL;DR: The data indicate that an auxin maximum at a vascular boundary establishes a distal organizer in theRoot formation in plants involves the continuous interpretation of positional cues.
Journal ArticleDOI
Auxin: a trigger for change in plant development.
Steffen Vanneste,Jiří Friml +1 more
TL;DR: The dynamic, differential distribution of the hormone auxin within plant tissues controls an impressive variety of developmental processes, which tailor plant growth and morphology to environmental conditions.
Journal ArticleDOI
Auxin in action: signalling, transport and the control of plant growth and development.
TL;DR: This review will focus on the plant hormone auxin and its action, and highlight recent mutagenesis and molecular studies, which have delineated the pathways of auxin transport, perception and signal transduction, and which together define the roles of Auxin in controlling growth and patterning.
References
More filters
Journal ArticleDOI
Basic Local Alignment Search Tool
TL;DR: A new approach to rapid sequence comparison, basic local alignment search tool (BLAST), directly approximates alignments that optimize a measure of local similarity, the maximal segment pair (MSP) score.
In planta Agrobacterium mediated gene transfer by infiltration of adult Arabidopsis thaliana plants
TL;DR: In this article, a nouvelle methode de transformation in situ par Agrobacterium is presented, based on l'infiltration sous vide de plantes d'Arabidopsis par une souche d'Agrobacteria contenant un vecteur binaire.
Journal ArticleDOI
Identifying nonpolar transbilayer helices in amino acid sequences of membrane proteins.
TL;DR: The next generation of autonomous vehicles will be able to communicate with each other in a much more efficient and efficient manner than the current generation of vehicles that can communicate solely with the human eye.
Journal ArticleDOI
The Acid Growth Theory of auxin-induced cell elongation is alive and well.
David L. Rayle,R E Cleland +1 more
TL;DR: The Acid Growth Theory, which states that when exposed to auxin, susceptible cells excrete protons into the wall (apoplast) at an enhanced rate, resulting in a decrease in apoplastic pH, activates wall-loosening processes, the precise nature of which is unknown.
Journal ArticleDOI
Transmembrane helices predicted at 95% accuracy
TL;DR: A neural network system that predicts the locations of transmembrane helices in integral membrane proteins by using evolutionary information as input to the network system significantly improved on a previously published neural network prediction method based on single sequence information.