Not all fungi are beneficial and some damage agricultural crops, cause disease in animals and humans, and produce poisonous toxins in foods. The nature, level, and types of microorganisms in foods have an impor
Yeast are single celled fungi that can be found in a variety of environment from soil and plants to animal and aquatic environments. Unlike bacteria, yeasts are also eukaryotic, which means that they have different types of organelles that are common in the cells of higher animals. The Saccharo...
Other fungi of interest to microbiologists are multicellular organisms calledmolds. Molds are made up of long filaments that form visible colonies (Figure 7). Molds are found in many different environments, from soil to rotting food to dank bathroom corners. Molds play a critical role in the de...
Microorganisms are simple, single celled organisms that can be found all around the world. They are largely composed of the members of the plant kingdom, fungi, bacteria and protozoa.
The bacteria must survive and thrive under extreme conditions such as high temperatures, acidic environments, and elevated concentrations of heavy metals. Their efficiency directly impacts the bioleaching process. Most used microorganisms are chemolithotrophic acidophiles. It also employs fungi along and so...
fungihabitatsedimentMicroorganisms are important drivers of material and energy circulation in freshwater ecosystems. Altered aquatic sedimentary environments disturbed by human activities affect microbial community composition. Concentrations of heavy metals, and sediment physicochemical properties, are described for...
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Exposure to airborne microorganisms in indoor environments may result in infectious disease or elicit an allergic or irritant response. Air handling system components contaminated by fungi have been implicated in the dispersal of spores into the indoor environment, thereby serving as a route of exposure...
The other kind of organic material in soil is humus. Humus refers to plant and animal materials that have been fully decomposed. This happens when living organisms in the soil, such as earthworms, insects, and fungi, consume detritus and return it to the soil through their waste excretions....
The Process of Plant Tissue CultureThis process involves the use of small pieces of a given plant tissue. Once the tissue is obtained, it is then cultured in the appropriate medium under sterile conditions so as to prevent various types of microorganisms from affecting the process. ...