Auxin inhibits expansion rate independently of cortical microtubules

Tobias I Baskin

doi:10.1016/j.tplants.2015.05.008

Auxin inhibits expansion rate independently of cortical microtubules

Trends Plant Sci. 2015 Aug;20(8):471-2. doi: 10.1016/j.tplants.2015.05.008. Epub 2015 Jun 1.

Author

Tobias I Baskin¹

Affiliation

¹ 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.

PMID: 26044741
DOI: 10.1016/j.tplants.2015.05.008

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.

Keywords: auxin-binding protein 1 (ABP1); growth direction; growth rate; microtubule orientation; tropism.

Publication types

Comment

MeSH terms

Arabidopsis / cytology*
Arabidopsis / metabolism*
Indoleacetic Acids / metabolism*
Microtubules / metabolism*
Plant Proteins / metabolism*
Receptors, Cell Surface / metabolism*

Substances

Indoleacetic Acids
Plant Proteins
Receptors, Cell Surface