Hydrogen peroxide production by Streptococcus pneumoniae results in alpha-hemolysis by oxidation of oxy-hemoglobin to met-hemoglobin
E. McDevitt, F. Khan, A. Scasny, Z. Eichembaun, L. S. McDaniel, J. E. Vidal
This paper shows that Streptococcus pneumoniae produces hydrogen peroxide, which oxidizes oxy-hemoglobin to met-hemoglobin, causing the greenish -hemolysis halo on blood agar plates, not pneumolysin.
bioRxiv · Jul 23, 2020Microbiology