Navigation überspringen
Universitätsbibliothek Heidelberg
Status: Bibliographieeintrag

Verfügbarkeit
Standort: ---
Exemplare: ---
heiBIB
 Online-Ressource
Verfasst von:Pes̆kan-Berghöfer, Tatjana [VerfasserIn]   i
 Vilches-Barro, Amaya [VerfasserIn]   i
 Rausch, Thomas [VerfasserIn]   i
Titel:Sustained exposure to abscisic acid enhances the colonization potential of the mutualist fungus Piriformospora indica on Arabidopsis thaliana roots
Verf.angabe:Tatjana Peskan-Berghöfer, Amaya Vilches-Barro, Teresa M. Müller, Erich Glawischnig, Michael Reichelt, Jonathan Gershenzon, Thomas Rausch
E-Jahr:2015
Jahr:13 October 2015
Umfang:14 S.
Fussnoten:Gesehen am 27.06.2017
Titel Quelle:Enthalten in: The new phytologist
Ort Quelle:Oxford [u.a.] : Wiley-Blackwell, 1902
Jahr Quelle:2015
Band/Heft Quelle:208(2015), 3, Seite 873-886
ISSN Quelle:1469-8137
Abstract:Root colonization by the beneficial fungus Piriformospora indica is controlled by plant innate immunity, but factors that channel this interaction into a mutualistic relationship are not known. We have explored the impact of abscisic acid (ABA) and osmotic stress on the P. indica interaction with Arabidopsis thaliana. The activation of plant innate immunity in roots was determined by measuring the concentration of the phytoalexin camalexin and expression of transcription factors regulating the biosynthesis of tryptophan-related defence metabolites. Furthermore, the impact of the fungus on the content of ABA, salicylic acid, jasmonic acid (JA) and JA-related metabolites was examined. We demonstrated that treatment with exogenous ABA or the ABA analogue pyrabactin increased fungal colonization efficiency without impairment of plant fitness. Concomitantly, ABA-deficient mutants of A. thaliana (aba1-6 and aba2-1) were less colonized, while plants exposed to moderate stress were more colonized than corresponding controls. Sustained exposure to ABA attenuated expression of transcription factors MYB51, MYB122 and WRKY33 in roots upon P. indica challenge or chitin treatment, and prevented an increase in camalexin content. The results indicate that ABA can strengthen the interaction with P. indica as a consequence of its impact on plant innate immunity. Consequently, ABA will be relevant for the establishment and outcome of the symbiosis under stress conditions.
DOI:doi:10.1111/nph.13504
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: http://dx.doi.org/10.1111/nph.13504
 Volltext: http://onlinelibrary.wiley.com/doi/10.1111/nph.13504/abstract
 Volltext: http://onlinelibrary.wiley.com/doi/10.1111/nph.13504/epdf
 DOI: https://doi.org/10.1111/nph.13504
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:abscisic acid (ABA)
 Arabidopsis thaliana
 camalexin
 Piriformospora
 plant innate immunity
 root
K10plus-PPN:1560205571
Verknüpfungen:→ Zeitschrift

Permanenter Link auf diesen Titel (bookmarkfähig):  https://katalog.ub.uni-heidelberg.de/titel/68131646   QR-Code
zum Seitenanfang