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JXB Advance Access first published online on June 27, 2006
This version published online on July 21, 2006
Journal of Experimental Botany, doi:10.1093/jxb/erl009
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© The Author [2006]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org
Received February 20, 2006
Accepted March 30, 2006

Intracellular Compartmentation: Biogenesis and Function Special Issue

Composition of the plant nuclear envelope: theme and variations

Iris Meier 1 *

1 Plant Biotechnology Center and Department of Plant Cellular and Molecular Biology, The Ohio State University, 244 Rightmire Hall, 1060 Carmack Road, Columbus, OH 43210, USA

* To whom correspondence should be addressed.
Iris Meier, E-mail: meier.56{at}osu.edu


  Abstract

The nuclear envelope is the hallmark of all eukaryotic cells, separating the nucleoplasm from the cytoplasm. At the same time, the nuclear envelope allows for the controlled exchange of macromolecules between the two compartments through nuclear pores and presents a surface for anchoring and organizing cytoskeletal components and chromatin. Although our molecular understanding of the nuclear envelope in higher plants is only just beginning, fundamental differences from the animal nuclear envelope have already been found. This review provides an updated investigation of these differences with respect to nuclear pore complexes, targeting of Ran signalling to the nuclear envelope, inner nuclear envelope proteins, and the role and fate of the nuclear envelope during mitosis.

Keywords: Lamin; NMCP1; nuclear envelope; nuclear export; nuclear import; nuclear pore; Ran cycle.
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