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

Ram Dixit, Richard Cyr

Research output: Contribution to journalArticle

34 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)99-108
Number of pages10
JournalPlant Journal
Volume29
Issue number1
DOIs
StatePublished - Feb 12 2002

All Science Journal Classification (ASJC) codes

  • Genetics
  • Plant Science
  • Cell Biology

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