English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Dissecting the interaction of photosynthetic electron transfer with mitochondrial signalling and hypoxic response in the Arabidopsis rcd1 mutant

Shapiguzov, A., Nikkanen, L., Fitzpatrick, D., Vainonen, J. P., Gossens, R., Alseekh, S., et al. (2020). Dissecting the interaction of photosynthetic electron transfer with mitochondrial signalling and hypoxic response in the Arabidopsis rcd1 mutant. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 375(1801): 20190413. doi:10.1098/rstb.2019.0413.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0006-5C6F-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-5C70-5
Genre: Journal Article

Files

show Files

Locators

show
hide
Locator:
Link (Any fulltext)
Description:
-

Creators

show
hide
 Creators:
Shapiguzov, Alexey1, Author
Nikkanen, Lauri1, Author
Fitzpatrick, Duncan1, Author
Vainonen, Julia P.1, Author
Gossens, Richard1, Author
Alseekh, S.2, Author              
Aarabi, F.2, Author              
Tiwari, Arjun1, Author
Blokhina, Olga1, Author
Panzarová, Klára1, Author
Benedikty, Zuzana1, Author
Tyystjärvi, Esa1, Author
Fernie, A. R.2, Author              
Trtílek, Martin1, Author
Aro, Eva-Mari1, Author
Rintamäki, Eevi1, Author
Kangasjärvi, Jaakko1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Central Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753339              

Content

show
hide
Free keywords: -
 Abstract: The Arabidopsis mutant rcd1 is tolerant to methyl viologen (MV). MV enhances the Mehler reaction, i.e. electron transfer from Photosystem I (PSI) to O2, generating reactive oxygen species (ROS) in the chloroplast. To study the MV tolerance of rcd1, we first addressed chloroplast thiol redox enzymes potentially implicated in ROS scavenging. NADPH-thioredoxin oxidoreductase type C (NTRC) was more reduced in rcd1. NTRC contributed to the photosynthetic and metabolic phenotypes of rcd1, but did not determine its MV tolerance. We next tested rcd1 for alterations in the Mehler reaction. In rcd1, but not in the wild type, the PSI-to-MV electron transfer was abolished by hypoxic atmosphere. A characteristic feature of rcd1 is constitutive expression of mitochondrial dysfunction stimulon (MDS) genes that affect mitochondrial respiration. Similarly to rcd1, in other MDS-overexpressing plants hypoxia also inhibited the PSI-to-MV electron transfer. One possible explanation is that the MDS gene products may affect the Mehler reaction by altering the availability of O2. In green tissues, this putative effect is masked by photosynthetic O2 evolution. However, O2 evolution was rapidly suppressed in MV-treated plants. Transcriptomic meta-analysis indicated that MDS gene expression is linked to hypoxic response not only under MV, but also in standard growth conditions. This article is part of the theme issue ‘Retrograde signalling from endosymbiotic organelles’.

Details

show
hide
Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1098/rstb.2019.0413
BibTex Citekey: doi:10.1098/rstb.2019.0413
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Royal Society
Pages: - Volume / Issue: 375 (1801) Sequence Number: 20190413 Start / End Page: - Identifier: ISSN: 0962-8436
CoNE: https://pure.mpg.de/cone/journals/resource/963017382021_1