Universität zu Köln

Rishmawi, Louai, Wolff, Heike, Schrader, Andrea ORCID: 0000-0002-3879-7057 and Huelskamp, Martin (2018). Sub-epidermal Expression of ENHANCER OF TRIPTYCHON AND CAPRICE1 and Its Role in Root Hair Formation Upon Pi Starvation. Front. Plant Sci., 9. LAUSANNE: FRONTIERS MEDIA SA. ISSN 1664-462X

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Abstract

Root hair patterning is best studied in Arabidopsis thaliana. A pattern of root hair and non-root hair files is governed by a gene-regulatory network of activators and inhibitors. Under phosphate starvation conditions, extra root hairs are formed in non-root hair positions. This raises the question, whether and how this environmental stimulus is mediated by the known root hair gene network. In this study, we provide genetic and molecular data on the role of ETC1 in the phosphate starvation induced ectopic root hair formation. We show that the expression in the epidermis is irregular and reduced and that a new expression domain is induced in the sub-epidermis. By expressing ETC1 in the sub-epidermis, we show that this is sufficient to induce extra root hair formation in N-files. This suggests that the phosphate induced expressional switch from epidermal to epidermal plus sub-epidermal expression of ETC1 is one environmental input to the underlying patterning network.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Rishmawi, Louai UNSPECIFIED UNSPECIFIED UNSPECIFIED Wolff, Heike UNSPECIFIED UNSPECIFIED UNSPECIFIED Schrader, Andrea UNSPECIFIED orcid.org/0000-0002-3879-7057 UNSPECIFIED Huelskamp, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-172450
DOI:	10.3389/fpls.2018.01411
Journal or Publication Title:	Front. Plant Sci.
Volume:	9
Date:	2018
Publisher:	FRONTIERS MEDIA SA
Place of Publication:	LAUSANNE
ISSN:	1664-462X
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EPIDERMAL-CELL DIFFERENTIATION; ARABIDOPSIS ROOT; TRICHOME DEVELOPMENT; PHOSPHORUS AVAILABILITY; LATERAL INHIBITION; MECHANISM CONTROLS; MYB GENES; PROTEIN; THALIANA; WEREWOLF Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17245