Plant Cells Use Auxin Efflux to Explore Geometry

Cell movement is the central mechanism for animal morphogenesis. Plant cell development rather relies on flexible alignment of cell axis adjusting cellular differentiation to directional cues. As central input, vectorial fields of mechanical stress and gradients of the phytohormone auxin have been d...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2014-07, Vol.4 (1), p.5852-5852
Main Authors: Zaban, Beatrix, Liu, Wenwen, Jiang, Xingyu, Nick, Peter
Format: Article
Language:English
Subjects:
13
13/62
631/449/448/2652
631/61/350/877
631/80
Biological Transport - drug effects
Cell Wall - chemistry
Cell walls
Exploration
Geometry
Humanities and Social Sciences
Indoleacetic Acids - antagonists & inhibitors
Indoleacetic Acids - pharmacology
Mechanotransduction, Cellular
Microfluidic Analytical Techniques
Microfluidics
Morphogenesis
multidisciplinary
Nicotiana - anatomy & histology
Nicotiana - cytology
Nicotiana - drug effects
Nicotiana - metabolism
Phthalimides - pharmacology
Plant cells
Plant Cells - drug effects
Plant Cells - metabolism
Plant Cells - ultrastructure
Plant Growth Regulators - antagonists & inhibitors
Plant Growth Regulators - pharmacology
Plant hormones
Science
Stress, Mechanical
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cell movement is the central mechanism for animal morphogenesis. Plant cell development rather relies on flexible alignment of cell axis adjusting cellular differentiation to directional cues. As central input, vectorial fields of mechanical stress and gradients of the phytohormone auxin have been discussed. In tissue contexts, mechanical and chemical signals will always act in concert; experimentally it is difficult to dissect their individual roles. We have designed a novel approach, based on cells, where directionality has been eliminated by removal of the cell wall. We impose a new axis using a microfluidic set-up to generate auxin gradients. Rectangular microvessels are integrated orthogonally with the gradient. Cells in these microvessels align their new axis with microvessel geometry before touching the wall. Auxin efflux is necessary for this touch-independent geometry exploration and we suggest a model, where auxin gradients can be used to align cell axis in tissues with minimized mechanical tensions.
ISSN:2045-2322
DOI:10.1038/srep05852