Universität zu Köln

Sarkar, Debika, Rovenich, Hanna, Jeena, Ganga, Nizam, Shadab, Tissier, Alain, Balcke, Gerd U., Mahdi, Lisa K., Bonkowski, Michael ORCID: 0000-0003-2656-1183, Langen, Gregor ORCID: 0000-0002-8321-1756 and Zuccaro, Alga ORCID: 0000-0002-8026-0114 (2019). The inconspicuous gatekeeper: endophytic Serendipita vermifera acts as extended plant protection barrier in the rhizosphere. New Phytol., 224 (2). S. 886 - 902. HOBOKEN: WILEY. ISSN 1469-8137

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Abstract

In nature, beneficial and pathogenic fungi often simultaneously colonise plants. Despite substantial efforts to understand the composition of natural plant-microbe communities, the mechanisms driving such multipartite interactions remain largely unknown. Here we address how the interaction between the beneficial root endophyte Serendipita vermifera and the pathogen Bipolaris sorokiniana affects fungal behaviour and determines barley host responses using a gnotobiotic soil-based split-root system. Fungal confrontation in soil resulted in induction of B. sorokiniana genes involved in secondary metabolism and a significant repression of genes encoding putative effectors. In S. vermifera, genes encoding hydrolytic enzymes were strongly induced. This antagonistic response was not activated during the tripartite interaction in barley roots. Instead, we observed a specific induction of S. vermifera genes involved in detoxification and redox homeostasis. Pathogen infection but not endophyte colonisation resulted in substantial host transcriptional reprogramming and activation of defence. In the presence of S. vermifera, pathogen infection and disease symptoms were significantly reduced despite no marked alterations of the plant transcriptional response. The activation of stress response genes and concomitant repression of putative effector gene expression in B. sorokiniana during confrontation with the endophyte suggest a reduction of the pathogen's virulence potential before host plant infection.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sarkar, Debika UNSPECIFIED UNSPECIFIED UNSPECIFIED Rovenich, Hanna UNSPECIFIED UNSPECIFIED UNSPECIFIED Jeena, Ganga UNSPECIFIED UNSPECIFIED UNSPECIFIED Nizam, Shadab UNSPECIFIED UNSPECIFIED UNSPECIFIED Tissier, Alain UNSPECIFIED UNSPECIFIED UNSPECIFIED Balcke, Gerd U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mahdi, Lisa K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonkowski, Michael UNSPECIFIED orcid.org/0000-0003-2656-1183 UNSPECIFIED Langen, Gregor UNSPECIFIED orcid.org/0000-0002-8321-1756 UNSPECIFIED Zuccaro, Alga UNSPECIFIED orcid.org/0000-0002-8026-0114 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-133148
DOI:	10.1111/nph.15904
Journal or Publication Title:	New Phytol.
Volume:	224
Number:	2
Page Range:	S. 886 - 902
Date:	2019
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; MYCORRHIZAL FUNGUS; BIPOLARIS-SOROKINIANA; AQUAPORINS FACILITATE; MELANIN BIOSYNTHESIS; SYSTEMIC RESISTANCE; SEBACINA-VERMIFERA; DISEASE RESISTANCE; BIOMASS PRODUCTION; TRICHODERMA Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13314