Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on June 15, 2006; 10.1104/pp.106.080333

This Article
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow Supplemental Data
Right arrow All Versions of this Article:
141/4/1328    most recent
pp.106.080333v1
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 Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (10)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Luesse, D. R.
Right arrow Articles by Hangarter, R. P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Luesse, D. R.
Right arrow Articles by Hangarter, R. P.
Agricola
Right arrow Articles by Luesse, D. R.
Right arrow Articles by Hangarter, R. P.

Received March 13, 2006
Returned for revision April 14, 2006
Accepted June 1, 2006

Plastid Movement Impaired 2, a new gene involved in normal blue-light-induced chloroplast movements in Arabidopsis thaliana

Darron R. Luesse , Stacy L. DeBlasio , and Roger P. Hangarter *

Department of Biology, Indiana University, Bloomington, IN 47405

* Corresponding author; email: rhangart{at}indiana.edu.

Chloroplasts move in a light-dependent manner that can modulate the photosynthetic potential of plant cells. The identification of genes required for light-induced chloroplast movement is beginning to define the molecular machinery that controls these movements. In this work we describe plastid movement impaired 2 (pmi2), a mutant in Arabidopsis thaliana that displays attenuated chloroplast movements under intermediate and high light intensities while maintaining a normal movement response under low light intensities. In wild-type plants, fluence rates below 20 µmol m-2 s-1 of blue light lead to chloroplast accumulation on the periclinal cell walls, while light intensities over 20 µmol m-2 s-1 caused chloroplasts to move towards the anticlinal cell walls (avoidance response). However, at light intensities below 75 µmol m-2 s-1, chloroplasts in pmi2 leaves move to the periclinal walls. 100 µmol m-2 s-1 of blue light is required for chloroplasts in pmi2 to move to the anticlinal cell walls, indicating a shift in the light threshold for the avoidance response in the mutant. The pmi2 mutation has been mapped to a gene that encodes a protein of unknown function with a large coiled-coil domain in the N-terminus and a putative P-loop. PMI2 shares sequence and structural similarity with PMI15, another unknown protein in Arabidopsis that when mutated causes a defect in chloroplast avoidance under high-light intensities.




This article has been cited by other articles:


Home page
 Plant Cell PhysiolHome page
Md. S. Islam, Y. Niwa, and S. Takagi
Light-Dependent Intracellular Positioning of Mitochondria in Arabidopsis thaliana Mesophyll Cells
Plant Cell Physiol., June 1, 2009; 50(6): 1032 - 1040.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
K. Oikawa, A. Yamasato, S.-G. Kong, M. Kasahara, M. Nakai, F. Takahashi, Y. Ogura, T. Kagawa, and M. Wada
Chloroplast Outer Envelope Protein CHUP1 Is Essential for Chloroplast Anchorage to the Plasma Membrane and Chloroplast Movement
Plant Physiology, October 1, 2008; 148(2): 829 - 842.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
F. Wen, D. Xing, and L. Zhang
Hydrogen peroxide is involved in high blue light-induced chloroplast avoidance movements in Arabidopsis
J. Exp. Bot., July 1, 2008; 59(10): 2891 - 2901.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
M. Koniger, J. A. Delamaide, E. D. Marlow, and G. C. Harris
Arabidopsis thaliana leaves with altered chloroplast numbers and chloroplast movement exhibit impaired adjustments to both low and high light
J. Exp. Bot., June 1, 2008; 59(9): 2285 - 2297.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
K. Iwabuchi, T. Sakai, and S. Takagi
Blue Light-Dependent Nuclear Positioning in Arabidopsis thaliana Leaf Cells
Plant Cell Physiol., September 1, 2007; 48(9): 1291 - 1298.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 2006 by the American Society of Plant Biologists