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The influence of Acidification on Ammonification

This experiment examines the influence of moderate (pH 5.5) to extreme (pH 3.5) sulfuric acid-induced acidification on the ability of soil microorganisms to conduct ammonification. Two common soil inhabiting bacteria, Pseudomonas aeruginosa and Bacillus cereus, are analyzed for their ability to perform ammonification given only organic nitrogen and their ammonification ability in an acidic environment. The effect of acidification on the amount of ammonification in a local soil sample is also examined.
Associated files
Primary or BEN resource type
Discipline Specific Core Concepts
Life science discipline (subject)
Keywords ammonification; acidification; pH; bacteria; soil microbes; sulfur; soil
Key taxa Pseudomonas; Pseudomonas aeruoginosa; Bacillus; Bacillus cereus; bacteria
Intended End User Role
Educational Language
Pedagogical Use Category
Pedagogical Use Description Students will learn to complete a simple experiment involving the manipulation of one variable that influences the outcome of the physiological events of a population of organisms. They will also gain an understanding of the effect of pH on the efficiency of organic degradation by soil microbes.
Aggregation Level
Full Name of Primary Author Brian R. Shmaefsky
Primary Author Controlled Name
Primary Author Affiliation Oklahoma State University
Primary Author email
Added By Id
  • educationintern
Rights Ecological Society of America's copyright restrictions
Review type
Drought and Water Ecosystem Services Collection Off
Conservation Targets Under Global Change Collection Off
Big Data Collection Off
Editors Choice No
Resource Status
Date Of Record Submission 2004-02-04
I Agree to EcoEdDL's Copyright Policy & Terms of Use No
Date Of Record Release 2010-02-16 01:51:58
Last Modified By Id
  • tmourad
Date Last Modified 2015-06-08 11:53:34
Release Flag Published

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