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Golgi duplication in Trypanosoma brucei.


ABSTRACT: Duplication of the single Golgi apparatus in the protozoan parasite Trypanosoma brucei has been followed by tagging a putative Golgi enzyme and a matrix protein with variants of GFP. Video microscopy shows that the new Golgi appears de novo, near to the old Golgi, about two hours into the cell cycle and grows over a two-hour period until it is the same size as the old Golgi. Duplication of the endoplasmic reticulum (ER) export site follows exactly the same time course. Photobleaching experiments show that the new Golgi is not the exclusive product of the new ER export site. Rather, it is supplied, at least in part, by material directly from the old Golgi. Pharmacological experiments show that the site of the new Golgi and ER export is determined by the location of the new basal body.

SUBMITTER: He CY 

PROVIDER: S-EPMC2172185 | biostudies-literature | 2004 May

REPOSITORIES: biostudies-literature

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Golgi duplication in Trypanosoma brucei.

He Cynthia Y CY   Ho Helen H HH   Malsam Joerg J   Chalouni Cecile C   West Christopher M CM   Ullu Elisabetta E   Toomre Derek D   Warren Graham G  

The Journal of cell biology 20040501 3


Duplication of the single Golgi apparatus in the protozoan parasite Trypanosoma brucei has been followed by tagging a putative Golgi enzyme and a matrix protein with variants of GFP. Video microscopy shows that the new Golgi appears de novo, near to the old Golgi, about two hours into the cell cycle and grows over a two-hour period until it is the same size as the old Golgi. Duplication of the endoplasmic reticulum (ER) export site follows exactly the same time course. Photobleaching experiments  ...[more]

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