Skip Navigation


Plant and Cell Physiology Advance Access originally published online on January 13, 2006
Plant and Cell Physiology 2006 47(3):391-400; doi:10.1093/pcp/pcj006
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
47/3/391    most recent
pcj006v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (8)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Sarvikas, P.
Right arrow Articles by Tyystjärvi, E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Sarvikas, P.
Right arrow Articles by Tyystjärvi, E.
Agricola
Right arrow Articles by Sarvikas, P.
Right arrow Articles by Tyystjärvi, E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?


Action Spectrum of Photoinhibition in Leaves of Wild Type and npq1-2 and npq4-1 Mutants of Arabidopsis thaliana

Päivi Sarvikas, Marja Hakala, Eija Pätsikkä, Taina Tyystjärvi and Esa Tyystjärvi*

Plant Physiology and Molecular Biology, Department of Biology, University of Turku, FI-20014 Turku, Finland

* Corresponding author: E-mail, esatyy{at}utu.fi; Fax, +358-2-3335549.

Photoinhibition is light-induced inactivation of PSII. Hypotheses about the photoreceptor(s) of photoinhibition include the Chl antenna of PSII, manganese of the oxygen-evolving complex (OEC), uncoupled Chl and iron–sulfur centres. We measured the action spectrum of photoinhibition in vivo from wild-type Arabidopsis thaliana L. and from the npq1-2 and npq4-1 mutants defective in non-photochemical quenching (NPQ) of excitations of the PSII antenna. The in vivo action spectrum was found to resemble closely the in vitro action spectra published for photoinhibition. We compared the action spectrum with absorbance spectra of model compounds of the OEC complex and other potential photoreceptors of photoinhibition. The comparison suggests that both manganese and Chl function as photoreceptors in photoinhibition. In accordance with the function of two types of photoreceptors in photoinhibition, NPQ was found to offer only partial protection against photoinhibition at visible wavelengths. The low protective efficiency of NPQ supports the conclusion that the Chl antenna of PSII is not the only photoreceptor of photoinhibition. Comparison of the action spectrum of photoinhibition with the emission spectrum of sunlight shows that the UV part of sunlight is responsible for the major part of photoinhibition under natural conditions.

(Received September 7, 2005; Accepted January 4, 2006)
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Plant Physiol.Home page
C. Six, R. Sherrard, M. Lionard, S. Roy, and D. A. Campbell
Photosystem II and Pigment Dynamics among Ecotypes of the Green Alga Ostreococcus
Plant Physiology, September 1, 2009; 151(1): 379 - 390.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. Takahashi, S. E. Milward, D.-Y. Fan, W. S. Chow, and M. R. Badger
How Does Cyclic Electron Flow Alleviate Photoinhibition in Arabidopsis?
Plant Physiology, March 1, 2009; 149(3): 1560 - 1567.
[Abstract] [Full Text] [PDF]

Home page
 Phil Trans R Soc BHome page
A. Boussac, M. Sugiura, T.-L. Lai, and A. W. Rutherford
Low-temperature photochemistry in photosystem II from Thermosynechococcus elongatus induced by visible and near-infrared light
Phil Trans R Soc B, March 27, 2008; 363(1494): 1203 - 1210.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. Takahashi, H. Bauwe, and M. Badger
Impairment of the Photorespiratory Pathway Accelerates Photoinhibition of Photosystem II by Suppression of Repair But Not Acceleration of Damage Processes in Arabidopsis
Plant Physiology, May 1, 2007; 144(1): 487 - 494.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.