Association for Biology Laboratory Education

Environmental Microbial Ecology
 

Mary Puterbaugh Mulcahy & Harry Edenborn

Tested Studies in Laboratory Teaching, 2007, Volume 28

Abstract

In this exercise, students develop and test a hypothesis about microbial ecology. The hypothesis that students choose must be testable with the “EcoPlate,” a multiwell test plate that allows rapid determination of the metabolic diversity of a bacterial population without tedious and time-consuming reagent preparation by the instructor. After inoculation with a solution of bacteria washed from a soil or plant sample, the plate returns a unique set of positive (purple) and negative (clear) reactions that allows students to assess whether or not two samples contain similar or dissimilar bacterial populations.

Keywords:  ecology, microbiology

Purdue University (2006)