Saccharomycetales

Baker's yeast (Saccharomyces cerevisiae)

The Real yeasts ( Saccharomycetales ) are the only order of fungi of the class Saccharomycetes that forms as Saccharomycotina one of the three subdivisions of the Ascomycota. Among them are many, but not all yeasts, the yeast with the sugar baker's yeast.

Features

The growth is by individual yeast cells. There are also next to pseudohyphae and true hyphae. These then have septa with multiple pores. The cell walls consist mainly of β -glucan. Chitin is formed only at the Knospungsnarben. In the asci one to many ascospores are formed. The asci arise from single cells or formed on simple Ascophoren. Mitotic and meiotic nuclear divisions occur within the remaining intact nuclear envelope.

Asexual reproduction occurs by budding, by conidia or arthrospores.

System

The Real yeasts are a natural kinship group ( monophyletic ). They are the sister group of the Pezizomycotina.

To order the following families include:

  • Ascoideaceae
  • Cephaloascaceae
  • Dipodascaceae
  • Endomycetaceae
  • Eremotheciaceae
  • Lipomycetaceae
  • Metschnikowiaceae
  • Pichiaceae Pichia
  • Kluyveromyces
  • Saccharomyces

Most also the genus Candida, including Candida albicans is placed in this order with unclear family membership.

Swell

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