EMB and MSA results, build a dichotomous key that could differentiate between these four strains.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Based only on your EMB and MSA results, build a dichotomous key that could differentiate between these four strains.

TSA
Growth +/-
Gram +/-
Morphology
Arrangement
Mannitol Salt agar
Growth +/-
Appearance
Interpretation
EMB agar
Growth +/-
Appearance
Interpretation
P. aeruginosa
+
rod
single/spaced
P. aeruginosa
N/A
Gram-
no mannitol
fermentation
P. aeruginosa
pink/
purple
no lactose
fermentation
M. luteus
+
+
spherical
tetrad
M. luteus
+
purple
Gram +
no mannitol
fermentation
M. luteus
.
N/A
Gram +
S. aureus
+
+
+
.
rod
spherical
single/spaced clustered
E. coli
S. aureus
+
yellow
Gram +
halophile
mannitol
fermentation
S. aureus
.
E. coli
N/A
Gram-
E. coli
+
metallic green
ferments
lactose
Gram +
Transcribed Image Text:TSA Growth +/- Gram +/- Morphology Arrangement Mannitol Salt agar Growth +/- Appearance Interpretation EMB agar Growth +/- Appearance Interpretation P. aeruginosa + rod single/spaced P. aeruginosa N/A Gram- no mannitol fermentation P. aeruginosa pink/ purple no lactose fermentation M. luteus + + spherical tetrad M. luteus + purple Gram + no mannitol fermentation M. luteus . N/A Gram + S. aureus + + + . rod spherical single/spaced clustered E. coli S. aureus + yellow Gram + halophile mannitol fermentation S. aureus . E. coli N/A Gram- E. coli + metallic green ferments lactose Gram +
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