Nuclear import in permeabilized protoplasts from higher plants has unique features.

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Nuclear import in permeabilized protoplasts from higher plants has unique features.

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In most eukaryotic cells, microtubules (MTs) are assembled at identified nucleating sites, such as centrosomes or spindle pole bodies. Higher plant cells do not possess such centrosome-like structures. Thus, the fundamental issues of where and how the intracellular plant MTs are nucleated remain highly debatable. A large body of evidence indicates that plant MTs emerge from the nuclear peripher...

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We have developed an in vitro system involving digitonin-permeabilized vertebrate cells to study biochemical events in the transport of macromolecules across the nuclear envelope. While treatment of cultured cells with digitonin permeabilizes the plasma membranes to macromolecules, the nuclear envelopes remain structurally intact and nuclei retain the ability to transport and accumulate protein...

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ژورنال

عنوان ژورنال: The Plant Cell

سال: 1996

ISSN: 1040-4651,1532-298X

DOI: 10.1105/tpc.8.8.1337