Reactions triggered in response to the presence of a Gram-negative bacterium that act to protect the cell or organism.

The process whose specific outcome is the progression of the eye over time, from its formation to the mature structure. The eye is the organ of sight.

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

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.

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.

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.

Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.

Any process in which a protein is transported to, or maintained in, a specific asymmetric distribution, resulting in the formation of daughter cells of different types.

Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the JNK cascade.

The joining of the parts of the wing imaginal discs, giving rise to the adult thorax.

The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

Any process that activates or increases the frequency, rate or extent of protein kinase activity.

Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the JNK cascade.

Any process that increases the frequency, rate or extent of protein homodimerization, interacting selectively with an identical protein to form a homodimer.

Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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

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.