CellStructureMech

Spore

Endospore layers, exosporium, and spore-specific structures.

21 records

Records
Label and definitionIdentifierCategoryKindStatus
ascospore wall

The specialized cell wall of the ascospore (spore), which is the product of meiotic division. Examples of this component are found in Fungi.

GO:0005619SporeEnvelope layerProposed
chitosan layer of spore wall

The second outermost layer of the spore wall, as described in Saccharomyces.

GO:0005631SporeEnvelope layerProposed
dityrosine layer of spore wall

The outermost layer of the spore wall, as described in Saccharomyces.

GO:0005630SporeEnvelope layerProposed
endospore coat

The layer in a bacterial endospore that lies under the exosporium, and is impermeable to many toxic molecules. The coat may also contain enzymes that are involved in endospore germination.

GO:0043593SporeEnvelope layerProposed
endospore core

An intracellular part that represents the innermost portion of an endospore; the endospore core is dehydrated, enriched in dipicolinic acid and divalent cations, and metabolically inactive.

GO:0070477SporeSubcellular regionProposed
endospore cortex

The thick, loosely cross-linked peptidoglycan layer between the spore core and the coat of a mature bacterial endospore.

GO:0043595SporeEnvelope layerProposed
endospore external encapsulating structure

The layered envelope that surrounds a bacterial endospore and gives it its resistance: a thick modified peptidoglycan cortex, a proteinaceous coat of dozens of proteins outside it, and in some species an additional loose exosporium. It encases the dehydrated, mineralised core in which the chromosome is held.

GO:0043591SporeEnvelope layerProposed
endospore-forming forespore

Portion of the cell formed during the process of bacterial sporulation that will ultimately become the core of the endospore. An endospore is a type of dormant cell that is resistant to adverse conditions.

GO:0042601SporeSubcellular regionProposed
exosporium

The outermost layer of a bacterial endospore, which is loosely attached and located outside of the endospore coat. It is generally composed of protein, carbohydrate, and perhaps lipid.

GO:0043592SporeEnvelope layerProposed
inner layer of spore wall

Either of the two innermost layers of the spore wall, as described in Saccharomyces.

GO:0005632SporeEnvelope layerProposed
Isp3 layer of spore wall

The outermost layers of the spore wall, as described in Schizosaccharomyces pombe.

GO:1990916SporeEnvelope layerProposed
microsporidian-type endospore

The middle layer in a microsporidian spore wall that lies under the exospore and outside the plasma membrane, containing chitin and proteins.

GO:0090641SporeEnvelope layerProposed
microsporidian-type exospore

The dense, protein-rich outermost layer of a microsporidian spore wall that lies above the endospore.

GO:0090642SporeEnvelope layerProposed
outer endospore membrane

The outer membrane around a bacterial endospore, located between the endospore cortex and the endospore coat.

GO:0043594SporeMembraneProposed
polar tube

A microsporidian invasion tube that is coiled inside the spore as the polar filament and rapidly everts from the anterior pole during germination, forming a conduit for the sporoplasm toward a host cell.

GO:0044099SporeFilamentProposed
polar tube anchoring disc

A structural component of the microsporidian spore's invasion apparatus that is located at the anterior end of the spore and serves to attach the polar tube to the inside of the spore wall.

GO:0160202SporeOtherProposed
prospore membrane

An ascospore-forming fungal double-membrane structure that grows from meiotic outer plaques to encapsulate meiotic nuclei and provide the foundation for spore-wall assembly.

GO:0005628SporeMembraneProposed
prospore membrane leading edge

The region of the prospore membrane that extends to surround the spore nucleus; coated with specific proteins that are thought to play a role in prospore membrane organization.

GO:0070056SporeSubcellular regionProposed
prospore membrane spindle pole body attachment site

The region of the prospore membrane to which the spindle pole body (SPB) is anchored; the prospore membrane extends from the SPB attachment site to surround the spore nucleus.

GO:0070057SporeSubcellular regionProposed
spore inner membrane

The membrane surrounding the spore core (endospore core) that separates it from its external environment.

GO:0140549SporeMembraneProposed
spore wall

The specialized envelope lying outside the cell membrane of a spore.

GO:0031160SporeEnvelope layerProposed