A process which results in the assembly, arrangement of constituent parts, or disassembly of a membrane. A membrane is a double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins.

The process that gives rise to the mesoderm. This process pertains to the initial formation of the structure from unspecified parts.

The formation of mesodermal clusters that are arranged segmentally along the anterior posterior axis of an embryo.

Any process that increases the rate, frequency, or extent of epithelial to mesenchymal transition. Epithelial to mesenchymal transition is where an epithelial cell loses apical/basolateral polarity, severs intercellular adhesive junctions, degrades basement membrane components and becomes a migratory mesenchymal cell.

The formation of the notochord from the chordamesoderm. The notochord is composed of large cells packed within a firm connective tissue sheath and is found in all chordates at the ventral surface of the neural tube. In vertebrates, the notochord contributes to the vertebral column.

Any process that activates or increases the frequency, rate or extent of BMP signaling pathway activity.

The maintenance of the apicobasal polarity of an epithelial cell.

The process whose specific outcome is the progression of the cardiovascular system over time, from its formation to the mature structure. The cardiovascular system is the anatomical system that has as its parts the heart and blood vessels.

A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the plasma membrane.

Any cellular process that results in the specification, formation or maintenance of anisotropic intracellular organization or cell growth patterns.

Any process that mediates the transfer of information from one cell to another. This process includes signal transduction in the receiving cell and, where applicable, release of a ligand and any processes that actively facilitate its transport and presentation to the receiving cell. Examples include signaling via soluble ligands, via cell adhesion molecules and via gap junctions.

Development of a photoreceptor, a sensory cell in the eye that reacts to the presence of light. They usually contain a pigment that undergoes a chemical change when light is absorbed, thus stimulating a nerve.

Any cellular process that results in the specification, formation or maintenance of the apicobasal polarity of an epithelial cell.

The morphogenetic process in which the anatomical structures of the compound eye are generated and organized. The adult compound eye is a precise assembly of 700-800 ommatidia. Each ommatidium is composed of 20 cells, identified by cell type and position. An example of compound eye morphogenesis is found in Drosophila melanogaster.

The morphogenetic process in which the anatomical structures of the compound eye are generated and organized. The adult compound eye is a precise assembly of 700-800 ommatidia. Each ommatidium is composed of 20 cells, identified by cell type and position. An example of compound eye morphogenesis is found in Drosophila melanogaster.

The actin-mediated process that results in the contraction of the apical end of a polarized columnar epithelial cell.

Any cellular process that results in the specification, formation or maintenance of anisotropic intracellular organization or cell growth patterns.

The process during Drosophila embryogenesis whereby the ectodermal cells of the lateral epithelium stretch in a coordinated fashion to internalize the amnioserosa cells and close the embryo dorsally.

The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.

The process whose specific outcome is the progression of an open tracheal system over time, from its formation to the mature structure. An open tracheal system is a respiratory system, a branched network of epithelial tubes that supplies oxygen to target tissues via spiracles. An example of this is found in Drosophila melanogaster.

The process in which the anatomical structures of the salivary gland are generated and organized.

The process in which the anatomical structures of the Malpighian tubule are generated and organized. This process takes place entirely during the embryonic phase. A Malpighian tubule is a fine, thin-walled excretory tubule in insects which leads into the posterior part of the gut.

Any process that activates or increases the rate or extent of cell proliferation.

Any cellular process that results in the specification, formation or maintenance of anisotropic intracellular organization of epithelial cells in an embryo.

Any cellular process that results in the specification, formation or maintenance of a polarized follicular epithelial sheet.

Any process that stops, prevents, or reduces the frequency, rate or extent of the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.

Any process that modulates the frequency, rate or extent of any process in which a protein is transported to, or maintained in, a specific location.

Any process that modulates the frequency, rate or extent of the directed movement of proteins within cells.

A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of an adherens junction. An adherens junction is a cell junction at which the cytoplasmic face of the plasma membrane is attached to actin filaments.

The clearance of liquid from the epithelial tubes of an open tracheal system, shortly before the emergence of the larva, to generate an air-filled tubule system.

Any cellular process that results in the specification, formation or maintenance polarization of a cell's architecture along its apical/basal axis so that the apical and basal regions of the cell have different membrane, extracellular matrix and sub-membrane cellular components.

Retaining the established polarization of a cell along its apical/basal axis.

The process in which the anatomical structures of a tube are generated and organized. Epithelial and endothelial tubes transport gases, liquids and cells from one site to another and form the basic structure of many organs and tissues, with tube shape and organization varying from the single-celled excretory organ in Caenorhabditis elegans to the branching trees of the mammalian kidney and insect tracheal system.

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

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

The process whose specific outcome is the progression of a light-responsive receptor in the compound eye over time, from its formation to the mature structure.

The assembly and arrangement of a rhabdomere within a cell. The rhabdomere is the organelle on the apical surface of a photoreceptor cell that contains the visual pigments.

Any process in which a protein is transported to, or maintained in, apical regions of the cell.

Any process in which a protein is transported to, or maintained in, apical regions of the cell.

Assembly of the zonula adherens, a cell-cell adherens junction which forms a continuous belt near the apex of epithelial cells.

Maintaining the zonula adherens junction, the cell-cell adherens junction formed near the apex of epithelial cells.

Any process preventing the degeneration of the photoreceptor, a specialized cell type that is sensitive to light.

Any process that modulates the frequency, rate or extent of the growth of the imaginal disc.

Any process that stops, prevents, or reduces the frequency, rate or extent of the Notch signaling pathway.

Any process that stops, prevents, or reduces the frequency, rate or extent of growth of an organ of an organism.

The changes that occur during dorsal closure of the shape and structure of the amnioserosa, an epithelium that occupies the dorsal side of the embryo.

Maintenance of the amnioserosa, an epithelium that occupies a hole in the embryonic dorsal epidermis.

The establishment, maintenance and elaboration of the dorsal/ventral axis of the wing disc, a precursor to the adult wing.

Any process involved in maintaining the structure and integrity of a protein and preventing it from degradation or aggregation.

Any process in which a centrosome is transported to, and/or maintained in, a specific location within the cell.

The process whose specific outcome is the progression of a trachea over time, from its formation to the mature structure. The trachea is the portion of the airway that attaches to the bronchi as it branches.

The shape change of an epithelial cell from a columnar to squamous cell morphology that contributes to the shaping of the Malpighian tubule.

The process in which the anatomical structures of a rhabdomere are generated and organized. The rhabdomere is the organelle on the apical surface of a photoreceptor cell that contains the visual pigments.

The process in which genetic material, in the form of nuclear chromosomes, is organized into specific structures and then physically separated and apportioned to two or more sets. Nuclear chromosome segregation begins with the condensation of chromosomes, includes chromosome separation, and ends when chromosomes have completed movement to the spindle poles.

A process which results in the assembly or arrangement of constituent parts apicomedial cortex actomyosin.

The attachment of a plasma membrane adhesion molecule in one cell to an identical molecule in an adjacent cell.

The attachment of an adhesion molecule in one cell to a nonidentical adhesion molecule in an adjacent cell.

The process whose specific outcome is the progression of the brain over time, from its formation to the mature structure. Brain development begins with patterning events in the neural tube and ends with the mature structure that is the center of thought and emotion. The brain is responsible for the coordination and control of bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.).

The process whose specific outcome is the progression of the brain ventricular system over time, from its formation to the mature structure. The brain ventricular system consists of four communicating cavities within the brain that are continuous with the central canal of the spinal cord. These cavities include two lateral ventricles, the third ventricle and the fourth ventricle. Cerebrospinal fluid fills the ventricles and is produced by the choroid plexus.

The process whose specific outcome is the progression of the camera-type eye over time, from its formation to the mature structure. The camera-type eye is an organ of sight that receives light through an aperture and focuses it through a lens, projecting it on a photoreceptor field.

Any process in which a protein is transported to, or maintained in, apical regions of the cell.

Any cellular process that results in the specification, formation or maintenance of the apicobasal polarity of an epithelial cell.

Any process that stops, prevents, or reduces the frequency, rate or extent of the Notch signaling pathway.

The process in which the anatomical structure of the retina is generated and organized in a camera-type eye during the embryonic life stage.

The attachment of one cell to another cell via adhesion molecules.

The attachment of one cell to another cell via adhesion molecules.

The process that gives rise to the mesoderm. This process pertains to the initial formation of the structure from unspecified parts.

The formation of mesodermal clusters that are arranged segmentally along the anterior posterior axis of an embryo.

Any process that modulates the rate or extent of gastrulation. Gastrulation is the complex and coordinated series of cellular movements that occurs at the end of cleavage during embryonic development of most animals.

Any process that modulates the rate or extent of gastrulation. Gastrulation is the complex and coordinated series of cellular movements that occurs at the end of cleavage during embryonic development of most animals.

Any process that increases the rate, frequency, or extent of epithelial to mesenchymal transition. Epithelial to mesenchymal transition is where an epithelial cell loses apical/basolateral polarity, severs intercellular adhesive junctions, degrades basement membrane components and becomes a migratory mesenchymal cell.

Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.

Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.

The formation of the notochord from the chordamesoderm. The notochord is composed of large cells packed within a firm connective tissue sheath and is found in all chordates at the ventral surface of the neural tube. In vertebrates, the notochord contributes to the vertebral column.

Any process that activates or increases the frequency, rate or extent of BMP signaling pathway activity.

The maintenance of the apicobasal polarity of an epithelial cell.

The migration of individual cells into the embryo involved in deuterostomic gastrulation.

The migration of individual cells into the embryo involved in deuterostomic gastrulation.

The process whose specific outcome is the progression of the cardiovascular system over time, from its formation to the mature structure. The cardiovascular system is the anatomical system that has as its parts the heart and blood vessels.

Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells.

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

A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.

A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.

The inner segment of a vertebrate photoreceptor containing mitochondria, ribosomes and membranes where opsin molecules are assembled and passed to be part of the outer segment discs.

The inner segment of a vertebrate photoreceptor containing mitochondria, ribosomes and membranes where opsin molecules are assembled and passed to be part of the outer segment discs.

Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells.

An adherens junction which connects a cell to another cell.

An adherens junction which connects a cell to another cell.

A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.

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

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.

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

The specialized microvilli-containing organelle on the apical surfaces of a photoreceptor cell containing the visual pigment rhodopsin and most of the proteins involved in phototransduction.

The apical end of the lateral plasma membrane of epithelial cells.

The apical end of the lateral plasma membrane of epithelial cells.

The most apical region of the lateral plasma membrane of an invertebrate epithelial cell. The subapical complex lies above the zonula adherens and the septate junction, and is comparable to the position of the tight junction of vertebrate cells.

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

A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.