Soil microflora
Many heterotrophic bacteria utilize
sugar, alcohol, and organic acids. However, there are specialized heterotrophic bacteria
capable also of decomposing cellulose, lignin, chitin, keratin, hydrocarbons, phenol, and other
substances. Heterotrophic bacteria take an active part in the natural recycling of substances.
Autrotrophic bacteria Autotrophic bacteria make their own food, either by photosynthesis
(which uses sunlight, carbon dioxide and water to make food) or by chemosynthesis (which
uses carbon dioxide, water and chemicals like ammonia to make food - these bacteria are
called nitrogen fixers and include the bacteria found living in legume roots and in ocean
vents).
Fungi - is a member of a large group of eukaryotic organisms that includes microorganisms
such as yeasts and molds (British English: moulds), as well as the more familiar mushrooms.
Actinomycetes - any member of a heterogeneous group of gram-positive, generally anaerobic
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