title: Auxin inhibits expansion rate independently of cortical microtubules.
abstract: A recent publication announces that auxin inhibits expansion by a mechanism based on the orientation of cortical microtubules. This is a textbook-revising claim, but as I argue here, a claim that is supported by neither the authors' data nor previous research, and is contradicted by a simple experiment.
authors.affiliation: Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington, Leicestershire LE12 5RD, UK; Biology Department, University of Massachusetts, Amherst, MA 01003, USA. Electronic address: Tobias.Baskin@nottingham.ac.uk.
authors.forename: Tobias I
authors.initials: TI
authors.lastname: Baskin
mesh_terms: D017360:Arabidopsis / Q000166:cytology* / Q000378:metabolism*; D007210:Indoleacetic Acids / Q000378:metabolism*; D008870:Microtubules / Q000378:metabolism*; D010940:Plant Proteins / Q000378:metabolism*; D011956:Receptors, Cell Surface / Q000378:metabolism*
chemical_list: D007210:Indoleacetic Acids; D010940:Plant Proteins; D011956:Receptors, Cell Surface
keywords: auxin-binding protein 1 (ABP1); growth direction; growth rate; microtubule orientation; tropism