Cookies

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.


Durham Research Online
You are in:

MOR1/GEM1 has an essential role in the plant-specific cytokinetic phragmoplast.

Twell, D. and Park, S. K. and Hawkins, T. J. and Schubert, D. and Schmidt, R. and Smertenko, A. and Hussey, P. J. (2002) 'MOR1/GEM1 has an essential role in the plant-specific cytokinetic phragmoplast.', Nature cell biology., 4 (9). pp. 711-714.

Abstract

MOR1 is a member of the MAP215 family of microtubule-associated proteins and is required to establish interphase arrays of cortical microtubules in plant cells1. Here we show that MOR1 binds microtubules in vivo, localizing to both cortical microtubules and to areas of overlapping microtubules in the phragmoplast. Genetic complementation of the cytokinesis-defective gemini pollen 1-1 (gem1-1) mutation with MOR1 shows that MOR1 (which is synonymous with the protein GEM1) is essential in cytokinesis. Phenotypic analysis of gem1-1 and gem1-2, which contains a T-DNA insertion, confirm that MOR1/GEM1 is essential for regular patterns of cytokinesis. Both the gem1-1 and gem1-2 mutations cause the truncation of the MOR1/GEM1 protein. In addition, the carboxy-terminal domain of the protein, which is absent in both mutants, binds microtubules in vitro. Our data show that MOR1/GEM1 has an essential role in the cytokinetic phragmoplast.

Item Type:Article
Additional Information:
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1038/ncb844
Record Created:17 May 2007
Last Modified:08 Apr 2009 16:31

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitterExport: EndNote, Zotero | BibTex
Usage statisticsLook up in GoogleScholar | Find in a UK Library