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dc.contributor.author
Löser, Tobias B.
dc.contributor.author
Mescher, Mark C.
dc.contributor.author
De Moraes, Consuelo M.
dc.contributor.author
Maurhofer Bringolf, Monika
dc.date.accessioned
2021-07-05T14:50:46Z
dc.date.available
2021-06-27T03:33:19Z
dc.date.available
2021-07-05T14:50:46Z
dc.date.issued
2021-06-11
dc.identifier.issn
0099-2240
dc.identifier.issn
1098-5336
dc.identifier.other
10.1128/AEM.02831-20
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/491549
dc.description.abstract
Rhizobacteria in the genus Pseudomonas can enhance plant resistance to a range of pathogens and herbivores. However, resistance to these different classes of plant antagonists is mediated by different molecular mechanisms, and the extent to which induced systemic resistance by Pseudomonas can simultaneously protect plants against both pathogens and herbivores remains unclear. We screened 12 root-colonizing Pseudomonas strains to assess their ability to induce resistance in Arabidopsis thaliana against a foliar pathogen (Pseudomonas syringae DC3000) and a chewing herbivore (Spodoptera littoralis). None of our 12 strains increased plant resistance against herbivory; however, four strains enhanced pathogen resistance, and one of these (Pseudomonas strain P97-38) also made plants more susceptible to herbivory. Phytohormone analyses revealed stronger salicylic acid induction in plants colonized by P97-38 (versus controls) following subsequent pathogen infection but weaker induction of jasmonic acid (JA)-mediated defenses following herbivory. We found no effects of P97-38 inoculation on herbivore-relevant nutrients such as sugars and protein, suggesting that the observed enhancement of susceptibility to S. littoralis is due to effects on plant defense chemistry rather than nutrition. These findings suggest that Pseudomonas strains that enhance plant resistance to pathogens may have neutral or negative effects on resistance to herbivores and provide insight into potential mechanisms associated with effects on different classes of plant antagonists. Improved understanding of these effects has potentially important implications for the use of rhizobacteria inoculation in agriculture.
en_US
dc.language.iso
en
en_US
dc.publisher
American Society for Microbiology
en_US
dc.subject
Arabidopsis thaliana
en_US
dc.subject
Pseudomonas
en_US
dc.subject
Pseudomonas syringae
en_US
dc.subject
Spodoptera littoralis
en_US
dc.subject
biological control
en_US
dc.subject
glucosinolates
en_US
dc.subject
Induced systemic resistance
en_US
dc.subject
Phytohormones
en_US
dc.title
Effects of Root-Colonizing Fluorescent Pseudomonas Strains on Arabidopsis Resistance to a Pathogen and an Herbivore
en_US
dc.type
Journal Article
dc.date.published
2021-04-23
ethz.journal.title
Applied and Environmental Microbiology
ethz.journal.volume
87
en_US
ethz.journal.issue
13
en_US
ethz.journal.abbreviated
Appl. Environ. Microbiol
ethz.pages.start
e0283120
en_US
ethz.size
14 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02720 - Institut für Integrative Biologie / Institute of Integrative Biology::03516 - McDonald, Bruce / McDonald, Bruce
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02720 - Institut für Integrative Biologie / Institute of Integrative Biology::03939 - Velicer, Gregory J. / Velicer, Gregory J.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02720 - Institut für Integrative Biologie / Institute of Integrative Biology::03516 - McDonald, Bruce / McDonald, Bruce
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02720 - Institut für Integrative Biologie / Institute of Integrative Biology::03939 - Velicer, Gregory J. / Velicer, Gregory J.
ethz.date.deposited
2021-06-27T03:33:23Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-07-05T14:50:53Z
ethz.rosetta.lastUpdated
2021-07-05T14:50:53Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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