Cytokinesis in brown algae: studies of asymmetric division in fucoid zygotes

Protoplasma
S R Bisgrove, D L Kropf

Abstract

The mechanism of cytokinesis was investigated during the first asymmetric division in fucoid zygotes. A plate of actin assembled midway between daughter nuclei where microtubules interdigitated and defined the cytokinetic plane. A membrane was then deposited in islands throughout the cytokinetic plane; the islands eventually fused into a continuous partition membrane and cell plate material was deposited in the intermembrane space. All of these structures matured from the center of the cell outward (centrifugal maturation). Pharmacological agents were used to investigate the roles of microtubules, actin, and secretion in cytokinesis. The findings indicate a mechanism of cytokinesis that may be unique to the brown algae.

Citations

Feb 11, 2010·Journal of Plant Research·Taizo MotomuraKei Kimura
Aug 5, 2010·Journal of Agricultural and Food Chemistry·Bharathi AvulaIkhlas A Khan
Mar 1, 2006·BMC Plant Biology·Rhett HadleyDarryl L Kropf
Oct 15, 2014·Protoplasma·Peter Nick
Oct 31, 2007·Plant & Cell Physiology·Nick T PetersDarryl L Kropf
Aug 1, 2013·Journal of Phycology·Whitney E Hable, Xuan Nguyen
Nov 5, 2016·Journal of Experimental Botany·Thomas A TorodeCécile Hervé
Mar 19, 2005·Cell Motility and the Cytoskeleton·Whitney E Hable, Darryl L Kropf
Feb 10, 2006·Annals of Botany·Christos KatsarosBasil Galatis

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