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Khatabi, B.* ; Molitor, A.* ; Lindermayr, C. ; Pfiffi, S.* ; Durner, J. ; von Wettstein, D.* ; Kogel, K.-H.* ; Schäfer, P.*

Ethylene supports colonization of plant roots by the mutualistic fungus Piriformospora indica.

PLoS ONE 7:e35502 (2012)
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The mutualistic basidiomycete Piriformospora indica colonizes roots of mono- and dicotyledonous plants, and thereby improves plant health and yield. Given the capability of P. indica to colonize a broad range of hosts, it must be anticipated that the fungus has evolved efficient strategies to overcome plant immunity and to establish a proper environment for nutrient acquisition and reproduction. Global gene expression studies in barley identified various ethylene synthesis and signaling components that were differentially regulated in P. indica-colonized roots. Based on these findings we examined the impact of ethylene in the symbiotic association. The data presented here suggest that P. indica induces ethylene synthesis in barley and Arabidopsis roots during colonization. Moreover, impaired ethylene signaling resulted in reduced root colonization, Arabidopsis mutants exhibiting constitutive ethylene signaling, -synthesis or ethylene-related defense were hyper-susceptible to P. indica. Our data suggest that ethylene signaling is required for symbiotic root colonization by P. indica.
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Publication type Article: Journal article
Document type Scientific Article
Keywords 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID; TRANSCRIPTION FACTORS; ARABIDOPSIS-THALIANA; EXPRESSION PATTERNS; BACTERIAL FLAGELLIN; SYSTEMIC RESISTANCE; DISEASE RESISTANCE; NEGATIVE REGULATOR; SIGNALING PATHWAY; INNATE IMMUNITY
ISSN (print) / ISBN 1932-6203
Journal PLoS ONE
Quellenangaben Volume: 7, Issue: 4, Pages: , Article Number: e35502 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place Lawrence, Kan.
Reviewing status Peer reviewed