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Firmicutes

Copyright © 2020 C.E. by Dustin Jon Scott

Introduction

Streptococcus pneumoniae, also known as “pneumococcus” is a gram-positive, non-motile, facultatively anaerobic, diplococcal, hemolytic bacterium of the phylum Firmicutes.

Figure 1 — streptococcus pneumoniae

Hemolysis

Modes of hemolysis differ in pneumococcus depending on environment:

  • α-Hemolysis or “Green Hemolysis” — pneumococcus is α-hemolytic under aerobic conditons.
  • β-Hemolysis or “Green Hemolysis” — pneumococcus is β-hemolytic

Polysaccarides & Pathologicality


Symptoms of Pneumococcal Infections


Treatment of Pneumococcal Infections



Immediate Phylogeny
Parent Group
Bacteria
Sister Groups
(Many)
Daughter Groups
Bacilli
Clostridia
Erysipelotrichia
Limnochordia
Negativicutes
Thermolithobacteria
Tissierellia

Taxonomy
Domain: Bacteria
Kingdom: Terrabacteria
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Streptococcaceae
Genus: Streptococcus
Species: S. pneumoniae


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