Talk:Cytokinesis
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Article Grading: The following comments were left by the quality and importance raters: (edit · history · refresh · how to use this template) Changed rating to "high" as this is high school/SAT biology content. - tameeria 21:44, 18 February 2007 (UTC) |
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[edit] External Links
Please either use appropriate reference inline in the text WP:V, or discuss and justify external links here before adding to page: JetheroTalk 21:00, 16 April 2007 (UTC)
The link was added to provide people with a good source of films of cytokinesis in a range of different organisms.
[edit] Picture
I think the picture shown could be replaced with a better one. The outline of each cell is not very clear, and unless you're used to looking at microscopy images, it's not very easy to see what's going on. Also, the tag highlighting the centrosome isn't really relevant to the article and seems to be more of a distraction than anything...
[edit] Headline text
The two daughter cells are now completely separated. Each is surrounded by a cell membrane. Each daughter cell has some of its parent cell's cytoplasm. Though daughter cells are genetically identical to their parent cell, they are smaller. After division, cells may enter a period of growth, during which they take in the resources they need to increase the amount of their cytoplasm and to grow to full size. When the cells are fully grown, they are about the same size as the parent cell was before division.
I have removed this section. The information provided is more relevant to cell division in general rather than cytokinesis specifically.
[edit] Plant cell cytokinesis
Due to the presence of a cell wall, cytokinesis in plant cells is significantly different from that in animal cells. Rather than forming a contractile ring, plant cells construct a cell plate in the middle of the cell. The Golgi apparatus releases vesicles containing cell wall materials. These vesicles fuse at the equatorial plane and form a cell plate. (...)
Actually this is rather untrue. The idea that the Golgi apparatus provides the cell wall and plasma membrane material for the cell plate is not right. Dhonukshe et al. proofed in 2006 that CW and PM material for the cell plate comes from the already matured Cell Wall and Plasma Membrane together with all necessary proteins; there is no de novo synthesis of PM proteins and CW pektins. Nonetheless the Golgi apparatus is not the only source for the cell plate. For further review, see Developmental Cell 10, page 137-150, January 2006 —Preceding unsigned comment added by 84.58.177.80 (talk) 11:11, 17 January 2008 (UTC)
As is stated by Dhonukshe et al., constitutive delivery of endocytic material in form of prefabricated PM/CW material is required for cell plate-formation during plant cytokinesis. However, they do not discount that GA-derived material is involved, rather stating that both are important. —Preceding unsigned comment added by 141.109.118.81 (talk) 03:26, 3 March 2008 (UTC)
