A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising microtubules and their associated proteins.

A cell cycle process that results in the division of the cytoplasm of a cell after mitosis, resulting in the separation of the original cell into two daughter cells.

Oscillatory movement of the nucleus involved in meiosis I. This oscillatory movement is led by an astral microtubule array emanating from the spindle pole body, and driven by the microtubule motor cytoplasmic dynein.

A mitotic cell cycle checkpoint that detects a defect in cytokinesis and prevents further rounds of nuclear division until cytokinesis is completed.

The cell cycle process in which the aggregation, arrangement and bonding together of a set of components forms the spindle midzone.

The cell cycle process in which the aggregation, arrangement and bonding together of a set of components forms the spindle midzone.

Any microtubule bundle formation that is involved in spindle midzone assembly involved in mitosis.

Any microtubule bundle formation that is involved in horsetail-astral microtubule organization.

Any microtubule sliding that is involved in mitotic spindle elongation.

Any process that activates or increases the frequency, rate or extent of fertilization.

Any process that activates or increases the frequency, rate or extent of fertilization.

Any process that activates or increases the frequency, rate or extent of the acrosome reaction.

Any process that activates or increases the frequency, rate or extent of the acrosome reaction.

A microtubule organizing center formed by a band of gamma-tubulin that is recruited to a circumferential band of F-actin at the midpoint of a cell and which nucleates microtubules from the cell division site at the end of mitosis.

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.

The array of microtubules and associated molecules that forms between opposite poles of a eukaryotic cell during mitosis or meiosis and serves to move the duplicated chromosomes apart.

The part of the cytoskeleton (the internal framework of a cell) composed of microtubules and associated proteins.

Arrays of microtubules underlying and connected to the plasma membrane in the cortical cytosol.

A microtubule bundle that has a constant length, and in which microtubule sliding does not take place.

The area in the center of the anaphase spindle consisting of microtubules, microtubule bundling factors and kinesin motors where the spindle microtubules from opposite poles overlap in an antiparallel manner.

Any microtubule that is part of a mitotic spindle; anchored at one spindle pole.