English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Herbivory-induced jasmonates constrain plant sugar accumulation and growth by antagonizing gibberellin signaling and not by promoting secondary metabolite production

Machado, R. A. R., Baldwin, I. T., & Erb, M. (2017). Herbivory-induced jasmonates constrain plant sugar accumulation and growth by antagonizing gibberellin signaling and not by promoting secondary metabolite production. New Phytologist, 215(2), 803-812. doi:10.1111/nph.14597.

Item is

Files

show Files
hide Files
:
ITB550s1.pdf (Supplementary material), 91KB
 
File Permalink:
-
Name:
ITB550s1.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute for Chemical Ecology, MJCO; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
ITB550.pdf (Publisher version), 486KB
 
File Permalink:
-
Name:
ITB550.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute for Chemical Ecology, MJCO; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show
hide
Locator:
http://dx.doi.org/10.1111/nph.14597 (Publisher version)
Description:
OA

Creators

show
hide
 Creators:
Machado, Ricardo A. R.1, 2, Author              
Baldwin, Ian Thomas1, Author              
Erb, Matthias3, Author              
Affiliations:
1Department of Molecular Ecology, Prof. I. T. Baldwin, MPI for Chemical Ecology, Max Planck Society, ou_24029              
2IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              
3Research Group Dr. M. Erb, Shoot Root Communication, Department of Molecular Ecology, Prof. I. T. Baldwin, MPI for Chemical Ecology, Max Planck Society, ou_896545              

Content

show
hide
Free keywords: -
 Abstract: Plants respond to herbivory by reconfiguring hormonal networks, increasing secondary metabolite production and decreasing growth. Furthermore, some plants display a decrease in leaf energy reserves in the form of soluble sugars and starch, leading to the hypothesis that herbivory-induced secondary metabolite production and growth reduction may be linked through a carbohydrate-based resource trade-off. In order to test the above hypothesis, we measured leaf carbohydrates and plant growth in seven genetically engineered Nicotiana attenuata genotypes that are deficient in one or several major herbivore-induced, jasmonate-dependent defensive secondary metabolites and proteins. Furthermore, we manipulated gibberellin and jasmonate signaling, and quantified the impact of these phytohormones on secondary metabolite production, sugar accumulation and growth. Simulated herbivore attack by Manduca sexta specifically reduced leaf sugar concentrations and growth in a jasmonate-dependent manner. These effects were similar or even stronger in defenseless genotypes with intact jasmonate signaling. Gibberellin complementation rescued carbohydrate accumulation and growth in induced plants without impairing the induction of defensive secondary metabolites. These results are consistent with a hormonal antagonism model rather than a resource–cost model to explain the negative relationship between herbivory-induced defenses, leaf energy reserves and growth.

Details

show
hide
Language(s):
 Dates: 2017-04-032017-05-182017-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: ITB550
DOI: 10.1111/nph.14597
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: New Phytologist
  Other : New Phytol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Academic Press.
Pages: - Volume / Issue: 215 (2) Sequence Number: - Start / End Page: 803 - 812 Identifier: ISSN: 0028-646X
CoNE: https://pure.mpg.de/cone/journals/resource/954925334695