Fungus & Yeast General Information

Yeast are widely dispersed in nature with a wide variety of habitats. They are commonly found on plant leaves, flowers, and fruits, as well as in soil. Yeast are also found on the surface of the skin and in the intestinal tracts of warm-blooded animals, where they may live symbiotically or as parasites. The common "yeast infection" is typically caused by . In addition to being the causative agent in vaginal yeast infections, is also the cause of diaper rash and thrush of the mouth and throat.

What are some facts about yeast

Yeast is everywhere: the food industry, cosmetics and healthcare. But... what is yeast?
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Yeast Infection Information and Pictures

Whereas plants produce their own food by using the energy of the sun through photosynthesis, fungus have no such capability and so must eat other organism, such as plants and people. Fungus, yeast, and molds live in damp environments so that the hyphae can absorb nutrients that are dissolved in water. They absorb simple, soluble nutrients (sugars, amino acids, etc.) through their walls, and release extracellular enzymes (exoenzymes) into their environment to degrade more complex nutrients like cellulose that they cannot absorb. .

yeast infection - Health and Medical Information …

Most of us know yeast is a very helpful organism, especially with respect to baking, wine making, and brewing. However, what are yeast and why are they the focus of so much research?

Nutrition facts and Information for Nutritional Yeast Flakes (Kal) 2 Tablespoons
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Yeasts by comparison are unicellular with individual cells being spheroid as seen in the associated photo. Yeast cultures tend to grow in smooth and sometimes shinny masses. Whereas fungus reproduce by producing spores (the tiny spherules in the fungus photo), yeast reproduce by dividing (called "budding" or "fission") in a fashion similar to animal cells. Many of the yeast cells in the yeast photo can be seen in the process of division.

Yeast Fundamentals | Wyeast Laboratories


Yeast cells can also reproduce sexually. Yeast cells exist as one of two different mating types, a cells and alpha cells. When cells of opposite mating types are mixed together in the lab or randomly come into contact in nature they can mate (conjugate). Before joining the cells change shape in a process called shmooing. The term was coined based on its similarity in shape to that of a fictional cartoon character of the same name created back in the late 40's by Al Capp, appearing first in his comic strip L'il Abner. During conjugation the shmooing haploid cells first fuse and then their nuclei fuse, resulting in the formation of a diploid cell with two copies of each chromosome. Once formed, diploid cells can reproduce asexually by budding, similar to haploids. However, when diploid cells are starved of nutrients they undergo sporulation. During sporulation diploid cells undergo meiosis, a special form of cell division that reduces the number of chromosomes from two copies back to one copy. After meiosis the haploid nuclei produced in meiosis are packaged into four spores that contain modified cell walls, resulting in structures that are very resistant to environmental stress. These spores can survive long periods of time until conditions become more favorable, such as in the presence of improved nutrients, whereupon they are able to germinate and reproduce asexually. These different states, budding, conjugation and sporulation together make up the yeast life cycle.

Yeast is a fungus that normally lives in the vagina in small numbers

What do we precisely mean when we talk about yeast? Yeast is a microscopic unicellular fungus that is used to make bread, wine and beer! But does it always exist in the same form?