What is the multiplication of process in Yeast ??
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Answer:
Most yeasts reproduce asexually by mitosis, and many do so by the asymmetric division process known as budding. With their single-celled growth habit, yeasts can be contrasted with molds, which grow hyphae.
1. Yeasts multiply asexually through the budding process. As the nucleus splits, a bud forms on the outside of the parent cell. The elongating bud receives one nucleus. The bud separates from the parent cell as cell wall material develops between the two.
courtesy of Dennis Kunkel's Microscopy, a scanning electron micrograph of Saccharomyces
Budding Saccharomyces cerevisiae. Budding Yeast (Saccharomyces cerevisiae) Growth and Division in Motion The author is Phillip Meaden. ASM MicrobeLibrary is licenced to be used.
2. Some yeasts, such as Candida albicans, generate blastoconidia (blastospores), which are clusters of asexual reproductive spores, as well as chlamydoconidia (chlamydospores), which are thick-walled survival spores; see Figure 8.2.5.
3. Yeasts may reproduce sexually by producing ascospores, which are formed by fusing the nuclei of two cells and then going through meiosis.