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Cellular component Bud neck

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DefinitionThe bud neck is a constriction between the mother and the daughter cell (bud) in an organism that reproduces by budding. This structure comprises the septin ring, an hourglass-shaped collar around the mother-bud neck, which splits into two rings flanking the division plane at cytokinesis and that acts as a diffusion barrier to maintain polarity factors in the bud and as a scaffold to recruit actomyosin contractile ring components.
Synonyms Cellular bud neck
Category› Cellular component
GOicellular bud neck [ GO:0005935 ]
Graphical BudBud neck