Universität zu Köln

Lahrmann, Urs, Strehmel, Nadine, Langen, Gregor ORCID: 0000-0002-8321-1756, Frerigmann, Henning, Leson, Lisa, Ding, Yi ORCID: 0000-0002-1356-4863, Scheel, Dierk, Herklotz, Siska, Hilbert, Magdalena and Zuccaro, Alga ORCID: 0000-0002-8026-0114 (2015). Mutualistic root endophytism is not associated with the reduction of saprotrophic traits and requires a noncompromised plant innate immunity. New Phytol., 207 (3). S. 841 - 858. HOBOKEN: WILEY. ISSN 1469-8137

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Abstract

During a compatible interaction, the sebacinoid root-associated fungi Piriformospora indica and Sebacina vermifera induce modification of root morphology and enhance shoot growth in Arabidopsis thaliana. The genomic traits common in these two fungi were investigated and compared with those of other root-associated fungi and saprotrophs. The transcriptional responses of the two sebacinoid fungi and of Arabidopsis roots to colonization at three different symbiotic stages were analyzed by custom-designed microarrays. We identified key genomic features characteristic of sebacinoid fungi, such as expansions for gene families involved in hydrolytic activities, carbohydrate-binding and protein-protein interaction. Additionally, we show that colonization of Arabidopsis correlates with the induction of salicylic acid catabolism and accumulation of jasmonate and glucosinolates (GSLs). Genes involved in root developmental processes were specifically induced by S.vermifera at later stages during interaction. Using different Arabidopsis indole-GSLs mutants and measurement of secondary metabolites, we demonstrate the importance of the indolic glucosinolate pathway in the growth restriction of P.indica and S.vermifera and we identify indole-phytoalexins and specifically indole-carboxylic acids derivatives as potential key players in the maintenance of a mutualistic interaction with root endophytes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lahrmann, Urs UNSPECIFIED UNSPECIFIED UNSPECIFIED Strehmel, Nadine UNSPECIFIED UNSPECIFIED UNSPECIFIED Langen, Gregor UNSPECIFIED orcid.org/0000-0002-8321-1756 UNSPECIFIED Frerigmann, Henning UNSPECIFIED UNSPECIFIED UNSPECIFIED Leson, Lisa UNSPECIFIED UNSPECIFIED UNSPECIFIED Ding, Yi UNSPECIFIED orcid.org/0000-0002-1356-4863 UNSPECIFIED Scheel, Dierk UNSPECIFIED UNSPECIFIED UNSPECIFIED Herklotz, Siska UNSPECIFIED UNSPECIFIED UNSPECIFIED Hilbert, Magdalena UNSPECIFIED UNSPECIFIED UNSPECIFIED Zuccaro, Alga UNSPECIFIED orcid.org/0000-0002-8026-0114 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-398413
DOI:	10.1111/nph.13411
Journal or Publication Title:	New Phytol.
Volume:	207
Number:	3
Page Range:	S. 841 - 858
Date:	2015
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1469-8137
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 PIRIFORMOSPORA-INDICA; ARABIDOPSIS-THALIANA; SEBACINA-VERMIFERA; LACCARIA-BICOLOR; MYCORRHIZAL FUNGUS; CELL-DEATH; HOST; PATATIN; EFFECTOR; GENE Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/39841