Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 47, Problem 1Q
Summary Introduction

To analyze:

The characteristics of Streptococci found in mouth.

Introduction:

The first inhabitants of mouth after birth are the genus Streptococcus and hence they are very important in the arrangement in oral micro biota.These Streptococci produces an adhesive layer enhancing the colonization more efficient.

Expert Solution & Answer
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Explanation of Solution

S.salivarius makes use of the polysaccharides and gives rise to gum-drop colonies like blue ring.

S.mitis will be little flattened colonies.

S.mutans has a glossy appearance due to the dextran produced.

Conclusion

Hence these are some of the characteristics of oral microbiota.

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