Journal article
Pathogen-Triggered Ethylene Signaling Mediates Systemic-Induced Susceptibility to Herbivory in Arabidopsis[W]
The Plant cell, v 25(11), pp 4755-4766
Nov 2013
PMID: 24285796
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
An apparently simple trade-off in plant defense against bacterial pathogens and insect herbivores shows unexpected mechanistic complexity.
Multicellular eukaryotic organisms are attacked by numerous parasites from diverse phyla, often simultaneously or sequentially. An outstanding question in these interactions is how hosts integrate signals induced by the attack of different parasites. We used a model system comprised of the plant host
Arabidopsis thaliana
, the hemibiotrophic bacterial phytopathogen
Pseudomonas syringae
, and herbivorous larvae of the moth
Trichoplusia ni
(cabbage looper) to characterize mechanisms involved in systemic-induced susceptibility (
SIS
) to
T. ni
herbivory caused by prior infection by virulent
P. syringae
. We uncovered a complex multilayered induction mechanism for
SIS
to herbivory. In this mechanism, antiherbivore defenses that depend on signaling via (1) the jasmonic acid–isoleucine conjugate (
JA
-Ile) and (2) other octadecanoids are suppressed by microbe-associated molecular pattern–triggered salicylic acid (
SA
) signaling and infection-triggered ethylene signaling, respectively.
SIS
to herbivory is, in turn, counteracted by a combination of the bacterial
JA
-Ile mimic coronatine and type III virulence-associated effectors. Our results show that
SIS
to herbivory involves more than antagonistic signaling between
SA
and
JA
-Ile and provide insight into the unexpectedly complex mechanisms behind a seemingly simple trade-off in plant defense against multiple enemies.
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Details
- Title
- Pathogen-Triggered Ethylene Signaling Mediates Systemic-Induced Susceptibility to Herbivory in Arabidopsis[W]
- Creators
- Simon C Groen - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Noah K Whiteman - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Adam K Bahrami - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Amity M Wilczek - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Jianping Cui - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Jacob A Russell - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Angelica Cibrian-Jaramillo - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Ian A Butler - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Jignasha D Rana - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Guo-Hua Huang - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138Jenifer Bush - Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts 02114Frederick M Ausubel - Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115Naomi E Pierce - Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138
- Publication Details
- The Plant cell, v 25(11), pp 4755-4766
- Publisher
- American Society of Plant Biologists
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biology
- Web of Science ID
- WOS:000329174400034
- Scopus ID
- 2-s2.0-84891519640
- Other Identifier
- 991014878024404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Biochemistry & Molecular Biology
- Cell Biology
- Plant Sciences