English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Increasing carbon availability stimulates growth and secondary metabolites via modulation of phytohormones in winter wheat

Huang, J., Reichelt, M., Chowdhury, S., Hammerbacher, A., & Hartmann, H. (2017). Increasing carbon availability stimulates growth and secondary metabolites via modulation of phytohormones in winter wheat. Journal of Experimental Botany, 68(5), 1251-1263. doi:10.1093/jxb/erx008.

Item is

Files

show Files
hide Files
:
GER476.pdf (Publisher version), 6MB
Name:
GER476.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show
hide
Locator:
http://dx.doi.org/10.1093/jxb/erx008 (Publisher version)
Description:
OA

Creators

show
hide
 Creators:
Huang, Jianbei, Author              
Reichelt, Michael1, Author              
Chowdhury, Somak, Author              
Hammerbacher, Almuth1, Author              
Hartmann, Henrik, Author              
Affiliations:
1Department of Biochemistry, Prof. J. Gershenzon, MPI for Chemical Ecology, Max Planck Society, ou_421893              

Content

show
hide
Free keywords: -
 Abstract: Phytohormones play important roles in plant acclimation to changes in environmental conditions. However, their role in whole-plant regulation of growth and secondary metabolite production under increasing atmospheric CO2 concentrations ([CO2]) is uncertain but crucially important for understanding plant responses to abiotic stresses. We grew winter wheat (Triticum aestivum) under three [CO2] (170, 390, and 680 ppm) over 10 weeks, and measured gas exchange, relative growth rate (RGR), soluble sugars, secondary metabolites, and phytohormones including abscisic acid (ABA), auxin (IAA), jasmonic acid (JA), and salicylic acid (SA) at the whole-plant level. Our results show that, at the whole-plant level, RGR positively correlated with IAA but not ABA, and secondary metabolites positively correlated with JA and JA-Ile but not SA. Moreover, soluble sugars positively correlated with IAA and JA but not ABA and SA. We conclude that increasing carbon availability stimulates growth and production of secondary metabolites via up-regulation of auxin and jasmonate levels, probably in response to sugar-mediated signalling. Future low [CO2] studies should address the role of reactive oxygen species (ROS) in leaf ABA and SA biosynthesis, and at the transcriptional level should focus on biosynthetic and, in particular, on responsive genes involved in [CO2]-induced hormonal signalling pathways.

Details

show
hide
Language(s):
 Dates: 2017-01-102017-02-172017-04
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: GER476
DOI: 10.1093/jxb/erx008
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Experimental Botany
  Other : J. Exp. Bot
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Oxford : Oxford University Press [etc.]
Pages: - Volume / Issue: 68 (5) Sequence Number: - Start / End Page: 1251 - 1263 Identifier: ISSN: 0022-0957
CoNE: https://pure.mpg.de/cone/journals/resource/954925413883