cytokinesis


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cytokinesis

 [si″to-kĭ-ne´sis]
the division of the cytoplasm between daughter cells in mitosis or meiosis.

cy·to·ki·ne·sis

(sī'tō-ki-nē'sis),
Changes occurring in the cytoplasm of the cell outside the nucleus during cell division.
Synonym(s): cytodieresis
[cyto- + G. kinēsis, movement]

cytokinesis

(sī′tō-kə-nē′sĭs, -kī-)
n.
The division of the cytoplasm of a cell following the division of the nucleus.

cy′to·ki·net′ic (-nĕt′ĭk) adj.

cy·to·ki·ne·sis

(sī'tō-ki-nē'sis)
Changes occurring in the protoplasm of the cell outside the nucleus during cell division.
[cyto- + G. kinēsis, movement]

cytokinesis

a part of CELL DIVISION that usually occurs during TELOPHASE of nuclear division. The cytoplasm becomes divided into two parts which are sometimes unequal, e.g. the production of ova and polar bodies during OOGENESIS. The mode of splitting differs between organisms. In higher plants, a special membrane-producing area (the CELL PLATE) develops internally and becomes joined to the outer membrane; in lower plants, the cell wall and plasma membrane grow in from outside; in animals, the plasma membrane forms a deep cleft from the outside inwards which eventually divides the cell.
References in periodicals archive ?
Centrosomes enhance the fidelity of cytokinesis in vertebrates and are required for cell cycle progression.
In the mechanism studies, although initially the 4 small molecules were chosen based on their profound effect on cytokinesis, they have also been proved playing important roles in cell cycle regulation [9, 21-25].
Aurora B kinase activity is essential for proper cytokinesis (Adams et al., 2001; Echard et al., 2004; Eggert et al., 2004; Smurnyy et al., 2010) and, at onset of anaphase, the CPC complex relocalizes to the spindle midzone (Adams et al., 2000), an area comprised of stable, overlapping microtubules (MTs).
Cytokinesis in microsporocyte meiosis is of the simultaneous type, and the micropore tetrads are tetrahedral.
Based on this phenomenon, cytokinesis, the process of dividing the cytoplasm and the cell membrane, may follow a short time after mitosis, but not immediately.
Within the cell cycle set of genes, 16 genes were associated with various parts of the cell cycle including cytokinesis, centromere formation, and microtubule formation.
In the all tetrads, the cytokinesis was done as simultaneous type (Fig.
The data for the micronucleus test with cytokinesis block and nuclear division index are reported in Table 3.
The cultures were incubated at 37 [degrees]C for 72 hours, and 44 hours after the initiation of cultures, cytochalasin-B (Sigma) at a concentration of 6mg/mL was added to arrest cytokinesis. MN slides were stained with 10% Giemsa in phosphate buffer.
The members of the BTB protein gene family are functionally involved in a variety of biological events in eukaryotes, including developmental timing [7], oogenesis [8], organ formation [9], cell development [10,11], cell apoptosis [12,13], protein degradation [14-17], cytokinesis [18,19], and tumorigenesis [20, 21].
During mitosis it localizes at the spindle poles to be inactivated and degraded before cytokinesis, as above mentioned [19, 22].
The study shows RhoA is necessary for proper regulation of a cellular process called cytokinesis during the final stage of cell division in hematopoietic progenitor cells, which produce specific types of blood cells.