Summary
The first stage in the formation of a bud in Rhodotorula glutinis is the production of a tapered plate of new wall material between the existing wall and the plasmalemma. The parent cell wall is lysed, allowing the bud to emerge enveloped in this new wall. Mucilage is synthesised to surround the developing bud. As the bud grows a septum forms centripetally dividing the two cells. When the daughter cell reaches maximum size the septum cleaves along its axis, producing the bud scar on the parent cell and the birth scar on the daughter cell. The birth scar is obliterated later as the wall of the young cell grows. A system of endoplasmic reticulum and vesicles is found in young buds and is thought to be responsible for the transport of wall material precursors.
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Marchant, R., Smith, D.G. Wall structure and bud formation in Rhodotorula glutinis . Archiv. Mikrobiol. 58, 248–256 (1967). https://doi.org/10.1007/BF00408807
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DOI: https://doi.org/10.1007/BF00408807