נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Thylakoid membrane remodeling during state transitions in Arabidopsis
Year:
2008
Source of publication :
Plant Cell
Authors :
חרובי, דנה
;
.
Volume :
20
Co-Authors:
Chuartzman, S.G., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Nevo, R., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Shimoni, E., Electron Microscopy Unit, Weizmann Institute of Science, Rehovot 76100, Israel
Charuvi, D., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel, Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Kiss, V., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Ohad, I., Institute of Life Sciences, Avron-Even-Ari Minerva Center for Photosynthesis Research, Hebrew University of Jerusalem, Jerusalem 91014, Israel
Brumfeld, V., Department of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
Reicha, Z., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Facilitators :
From page:
1029
To page:
1039
(
Total pages:
11
)
Abstract:
Adaptability of oxygenic photosynthetic organisms to fluctuations in light spectral composition and intensity is conferred by state transitions, short-term regulatory processes that enable the photosynthetic apparatus to rapidly adjust to variations in light quality. In green algae and higher plants, these processes are accompanied by reversible structural rearrangements in the thylakoid membranes. We studied these structural changes in the thylakoid membranes of Arabidopsis thaliana chloroplasts using atomic force microscopy, scanning and transmission electron microscopy, and confocal imaging. Based on our results and on the recently determined three-dimensional structure of higher-plant thylakoids trapped in one of the two major light-adapted states, we propose a model for the transitions in membrane architecture. The model suggests that reorganization of the membranes involves fission and fusion events that occur at the interface between the appressed (granal) and nonappressed (stroma lamellar) domains of the thylakoid membranes. Vertical and lateral displacements of the grana layers presumably follow these localized events, eventually leading to macroscopic rearrangements of the entire membrane network. © 2008 American Society of Plant Biologists.
Note:
Related Files :
arabidopsis
Arabidopsis thaliana
Chlorophyta
Embryophyta
עוד תגיות
תוכן קשור
More details
DOI :
10.1105/tpc.107.055830
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
21936
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:48
Scientific Publication
Thylakoid membrane remodeling during state transitions in Arabidopsis
20
Chuartzman, S.G., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Nevo, R., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Shimoni, E., Electron Microscopy Unit, Weizmann Institute of Science, Rehovot 76100, Israel
Charuvi, D., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel, Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Kiss, V., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Ohad, I., Institute of Life Sciences, Avron-Even-Ari Minerva Center for Photosynthesis Research, Hebrew University of Jerusalem, Jerusalem 91014, Israel
Brumfeld, V., Department of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
Reicha, Z., Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Thylakoid membrane remodeling during state transitions in Arabidopsis
Adaptability of oxygenic photosynthetic organisms to fluctuations in light spectral composition and intensity is conferred by state transitions, short-term regulatory processes that enable the photosynthetic apparatus to rapidly adjust to variations in light quality. In green algae and higher plants, these processes are accompanied by reversible structural rearrangements in the thylakoid membranes. We studied these structural changes in the thylakoid membranes of Arabidopsis thaliana chloroplasts using atomic force microscopy, scanning and transmission electron microscopy, and confocal imaging. Based on our results and on the recently determined three-dimensional structure of higher-plant thylakoids trapped in one of the two major light-adapted states, we propose a model for the transitions in membrane architecture. The model suggests that reorganization of the membranes involves fission and fusion events that occur at the interface between the appressed (granal) and nonappressed (stroma lamellar) domains of the thylakoid membranes. Vertical and lateral displacements of the grana layers presumably follow these localized events, eventually leading to macroscopic rearrangements of the entire membrane network. © 2008 American Society of Plant Biologists.
Scientific Publication
You may also be interested in