Literature DB >> 12060230

Golgi secretion is not required for marking the preprophase band site in cultured tobacco cells.

Ram Dixit1, Richard Cyr.   

Abstract

The preprophase band predicts the future cell division site. However, the mechanism of how a transient preprophase band fulfils this function is unknown. We have investigated the possibility that Golgi secretion might be involved in marking the preprophase band site. Observations on living BY-2 cells labeled for microtubules and Golgi stacks indicated an increased Golgi stack frequency at the preprophase band site. However, inhibition of Golgi secretion by brefeldin A during preprophase band formation did not prevent accurate phragmoplast fusion, and subsequent cell plate formation, at the preprophase band site. The results show that Golgi secretion does not mark the preprophase band site and thus does not play an active role in determination of the cell division site.

Entities:  

Keywords:  Non-programmatic

Mesh：

Substances：

Year:  2002        PMID： 12060230     DOI： 10.1046/j.0960-7412.2001.01202.x

Source DB:  PubMed          Journal:  Plant J        ISSN： 0960-7412            Impact factor:   6.417


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