Journal
PLANT CELL REPORTS
Volume 27, Issue 10, Pages 1581-1586Publisher
SPRINGER
DOI: 10.1007/s00299-008-0583-0
Keywords
Arabidopsis; dynamin-related protein; cell plate
Categories
Funding
- Japan Society for the Promotion of Science
- Nara Institute of Science and Technology
- The Ministry of Education, Culture, Sports, Science and Technology, Japan
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The Arabidopsis genome has six families of dynamin-related proteins. One of these families includes DRP2A and DRP2B. The domain structures of proteins of this family are most similar to those of the animal endocytosis protein, dynamin. In this study, the signals of GFP-tagged DRP2B were strongly detected in the cell plate of Arabidopsis root tip cells and tobacco cultured cells. Time-lapse observations of these signals during cytokinesis in tobacco cultured cells suggested that DRP2B mainly localized to the newly formed part of the cell plate, and that the localization dynamics of DRP2B was quite similar to that of DRP1A, which is an Arabidopsis dynamin-related protein that is closely related to soybean phragmoplastin. These results indicate that Arabidopsis dynamin-related proteins, DRP1A and DRP2B, from two different families, participate in membrane remodeling at a similar place in the cell plate.
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