A New Variant of the Capsule 3 Cluster Occurs in Streptococcus pneumoniae from Deceased Wild Chimpanzees
Figure 6
Colony morphology of S. pneumoniae type 3 strains.
A. S. pneumoniae R6 transformants. After transformation with the ligation mixture (Taï-DNA and pSW1) cells were plated on trimethoprim containing D-agar. Black arrows: mucoid capsular colonies; yellow arrows: non capsulated colonies carrying religated vector. B. Serotype type 3 strains. 1: R6bgaA::udg-wchE contains the cps3 locus of the Taï sample; 2: SP3-BS71 represents a type 3 human isolate. 3: the parental strain R6 and 4: R6bgaA::pSW1 carrying only the vector pSW1 are shown as unencapsulated control strains. Pictures were taken using a Sony DFW-X700 camera.