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 actin filaments. Includes processes that control the spatial distribution of actin filaments, such as organizing filaments into meshworks, bundles, or other structures, as by cross-linking.

The process whose specific outcome is the progression of the pole cell over time, from its formation to the mature structure.

The separation of a multi-nucleate cell or syncytium into individual cells. An example of this is found in Drosophila melanogaster embryo development.

Formation of a ventral indentation (furrow) from the blastoderm epithelium, which is internalized to form a tube in the interior of the embryo, marking the start of gastrulation.

Formation of a cup-shaped invagination at the posterior end of the embryo, bringing the posterior midgut and hindgut primordia into the interior.

Internalization of the anterior midgut into the interior of the embryo.

Elongation of the germ band on the ventral side of the embryo, accompanied by a halving in width. The elongation process pushes the posterior midgut invagination closed and compresses the amnioserosa further.

Any process that modulates the surface configuration of a cell.

The process in which the anatomical structures of embryonic epithelia are generated and organized.

Any process that modulates the surface configuration of an embryonic cell.

Any process that modulates the surface configuration of an embryonic cell.

Formation of furrows in the cytoplasm between nuclei during cell cycles in embryos that contribute to the formation of the syncytial blastoderm. An example of this process is found in Drosophila melanogaster.

A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of constituent parts of cytoskeletal structures comprising actin filaments and their associated proteins.

Any process that activates or increases the frequency, rate or extent of Rho protein signal transduction.

The process in which the anatomical structures of a spiracle are generated and organized. Spiracles are the openings in the insect open tracheal system; externally they connect to the epidermis and internally they connect to the tracheal trunk.

Any process that modulates the frequency, rate or extent of the assembly, arrangement of constituent parts, or disassembly of a bipolar filament composed of myosin II molecules.

Any process that modulates the frequency, rate or extent of axonogenesis, the generation of an axon, the long process of a neuron.

The actin filament-based process in which cytoplasmic actin filaments slide past one another resulting in contraction of all or part of the cell body.

The process in which a cell elongates and contributes to imaginal disc-derived wing morphogenesis.

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to the organism.

The actin-mediated process that results in contraction of the apical end of a polarized columnar epithelial cell, contributing to formation of a ventral indentation (furrow) from the blastoderm epithelium, which is internalized to form a tube in the interior of the embryo, marking the start of gastrulation.

A cytoskeletal structure composed of actin filaments and myosin that forms beneath the plasma membrane of many cells, including animal cells and yeast cells, in a plane perpendicular to the axis of the spindle, i.e. the cell division plane. In animal cells, the contractile ring is located at the cleavage furrow. In budding fungal cells, e.g. mitotic S. cerevisiae cells, the contractile ring forms at the mother-bud neck before mitosis.

The region of the plasma membrane located at the apical end of the cell.

The portion of the plasma membrane at the lateral side of the cell. In epithelial cells, lateral plasma membranes are on the sides of cells which lie at the interface of adjacent cells.

Polarized accumulation of cytoskeletal proteins (including F-actin) and regulatory proteins in a cell. An example of this is the actin cap found in Saccharomyces cerevisiae.

The region of a polarized cell that forms a tip or is distal to a base. For example, in a polarized epithelial cell, the apical region has an exposed surface and lies opposite to the basal lamina that separates the epithelium from other tissue.

The region of a cell situated near the base. For example, in a polarized epithelial cell, the basal surface rests on the basal lamina that separates the epithelium from other tissue.

The region that lies just beneath the plasma membrane on the apical edge of a cell.

The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.