A Microbiology Teaching Lab: Using Koch's Postulates to Determine the Cause of 'Peep Pox' in Marshmallow Peeps

Autor: Wayne Gatlin, John L. Dahl
Rok vydání: 2018
Předmět:
Zdroj: The American Biology Teacher. 80:676-679
ISSN: 1938-4211
0002-7685
Popis: Koch's postulates are regularly included in the lecture portion of microbiology courses, but rarely are they demonstrated in a microbiology teaching lab. This is understandable given the logistical challenges of undergraduates working with pathogenic bacteria, ethical concerns using animals, and limited time constraints of a weekly lab period. Here we present a cost-effective, time-friendly lab activity that demonstrates the principles of microbial isolation and infection assays that are part of fulfilling Koch's postulates. The disease is “peep pox” caused by a gelatinase-positive bacterial species hydrolyzing marshmallow peeps that proxy as infected animals.
Databáze: OpenAIRE