Yeast
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A yeast is any species of fungus that grows primarily in a unicellular form and reproduces via budding or fission. Yeasts are eukaryotic microorganisms that originated hundreds of millions of years ag
S cerevisiae under DIC microscopy
Yeast ring used by Swedish farmhouse brewers in the 19th century to preserve yeast between brewing sessions
Bubbles of carbon dioxide forming during beer-brewing
Yeast in a bottle during sparkling wine production at Schramsberg Vineyards, Napa
Mold
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A mold or mould is one of the structures that certain fungi can form. The dust-like, colored appearance of molds is due to the formation of spores containing fungal secondary metabolites. The spores a
Yeast
…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. Fungal species that can take both forms (depending on temperature or other conditions) are called dimorphic fungi. The yeast species…
Close up of mold on a strawberry
Penicillium digitatum mold growing on a clementine
Spinellus fusiger growing on the mushroom Mycena haematopus
Spores from green mold (Penicillium or Trichoderma) growing on an orange, 1000× wet mount