Authored by: Helene N. Guttman

Encyclopedia of Environmental Science and Engineering

Print publication date:  June  2012
Online publication date:  June  2012

Print ISBN: 9781439804421
eBook ISBN: 9780203757659
Adobe ISBN:


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Microbiology is the study of organisms which are small enough to require the aid of a microscope to be seen. In a few cases, organisms are included in this group, which can be seen by the unaided eye because these organisms are clearly related to the smaller ones. Microorganisms include viruses, bacteria including rickettsia, mycoplasma, fungi (yeast and molds), most algae, protozoa and, if one interprets “micro” broadly, certain tiny multicellular plants and animals. The study of cells and tissues from higher plants and animals (tissue culture) uses techniques common to the microbiologist and is frequently considered part of modern microbiology.

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