Cell Division
The mitotic division of T.brucei is unusual compared to most eukaryotes. The nuclear membrane remains intact and the chromosomes do not condense during mitosis. The basal body, unlike the centrosome of most eukaryotic cells, does not play a role in the organisation of the spindle and instead is involved in division of the kinetoplast.
Stages of mitosis:
- The basal body duplicates and both remain associated with the kinetoplast.
- Kinetoplast DNA undergoes synthesis then the kinetoplast divides coupled with separation of the two basal bodies.
- Nuclear DNA undergoes synthesis while a new flagellum extends from the younger, more posterior, basal body.
- The nucleus undergoes mitosis.
- Cytokinesis progresses from the anterior to posterior.
- Division completes with abscission.
Read more about this topic: Trypanosoma Brucei
Famous quotes containing the words cell and/or division:
“Theres not one part of his physical being thats like that of human beings. From his warped brain down to the tiniest argumentative cell of his huge carcass, hes unearthly.”
—Willis Cooper. Rowland V. Lee. Wolf von Frankenstein (Basil Rathbone)
“Affection, indulgence, and humor alike are powerless against the instinct of children to rebel. It is essential to their minds and their wills as exercise is to their bodies. If they have no reasons, they will invent them, like nations bound on war. It is hard to imagine families limp enough always to be at peace. Wherever there is character there will be conflict. The best that children and parents can hope for is that the wounds of their conflict may not be too deep or too lasting.”
—New York State Division of Youth Newsletter (20th century)