Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Chapter 21.4, Problem 6AYP
List the possible causative agents, modes of transmission, virulence factors, and prevention/treatment for the “Highlight Diseases,” gonorrhea and Chlamydia infection.
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The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction?
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Mutation 1
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You have a bacterial strain with the CMU operon:
a) As shown in the image below, the cmu operon encodes a peptide (Pep1), as well as a
kinase and regulator corresponding to a two-component system. The cmu operon is
activated when Pep 1 is added to the growth media.
Pep1 is a peptide that when added extracellularly leads to activation of the Cmu operon.
Pep1 cmu-kinase cmu-regulator
You also have these genetic components in other strains:
b) An alternative sigma factor, with a promoter activated by the cmu-regulator, that control a
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c) the gene cl (a repressor).
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Chapter 21 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 21.1 - Prob. 1AYPCh. 21.1 - Prob. 2AYPCh. 21.2 - Prob. 3AYPCh. 21.3 - List the possible causative agents, modes of...Ch. 21.3 - Discuss important features of leptospirosis.Ch. 21.3 - Prob. 1NPCh. 21.3 - Medical Moment Cranberry versus UTI It has long...Ch. 21.4 - List the possible causative agents, modes of...Ch. 21.4 - Prob. 7AYPCh. 21.4 - Prob. 8AYP
Ch. 21.4 - Prob. 9AYPCh. 21.4 - Prob. 10AYPCh. 21.4 - Prob. 11AYPCh. 21.4 - Prob. 12AYPCh. 21.4 - Prob. 2NPCh. 21.4 - Prob. 3NPCh. 21.4 - Prob. 2MMCh. 21 - Prob. 1QCh. 21 - Some of the E. coli strains that are normal biota...Ch. 21 - Many STIs are asymptomatic, or remain latent for...Ch. 21 - Prob. 4QCh. 21 - Three microorganisms in this chapter can be...Ch. 21 - Prob. 6QCh. 21 - Prob. 7QCh. 21 - Prob. 8QCh. 21 - Prob. 9QCh. 21 - Prob. 10QCh. 21 - Prob. 11QCh. 21 - Prob. 12QCh. 21 - Prob. 13QCh. 21 - Prob. 14QCh. 21 - Prob. 15QCh. 21 - Prob. 16QCh. 21 - Prob. 17QCh. 21 - Prob. 18QCh. 21 - Prob. 19QCh. 21 - Prob. 20QCh. 21 - Prob. 21QCh. 21 - Prob. 1VC
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