ABSTRACT
Taxonomy is the science of classification. Taxonomy relates organisms based on observable physical or chemical properties. Genomic information can be used to help identify the phylogeny of a group of microbes. The term “protist” came to mean the single-celled or few-celled microbes, often referred to as unicells. Microbes that use one-carbon compounds are called methylotrophs, while bacteria that use methane exclusively are called methanotrophs. Thermophilic microbes are found in both the Archaea and Eubacteria Domains. The microbes oxidize the reduced sulfur, using oxygen as an electron acceptor, and produce sulfuric acid. Serotyping is a technique using serum antibodies to differentiate between strains of microbes that have different antigenic compositions, such as different molecules on their cell wall surfaces. Microbes in the Division Chlorophyta are commonly called green algae. They are characterized by photosynthetic pigments similar in color to the higher green plants.
