Journal: PLoS ONE
Article Title: Either Non-Homologous Ends Joining or Homologous Recombination Is Required to Repair Double-Strand Breaks in the Genome of Macrophage-Internalized Mycobacterium tuberculosis
Figure Lengend Snippet: Survival of Mtb strains inside MØs. (A) MØs were infected with Mtb wild-type or its mutants, Δ( ku,ligD,recA ), Δ( ku,ligD ) or Δ recA , for 2 hours (MOI = 10), washed with HBSS, and cultured for 2, 4, and 6 days. (B and C) MØs were infected with Mtb wild-type or its mutants (B) or complemented strains Δ( ku,ligD,recA )- P recA recA – complemented strain I or Δ( ku,ligD,recA )- P kuligD ku-ligD – complemented strain II (C) for 6 days. On the day of infection and after 6 days of culture, MØs were lysed with Triton X-100 and cell lysates were plated onto Middlebrook 7H10 agar supplemented with 10% OADC. After 21 days of culture, CFUs were counted. Data are presented as fold increase in CFUs, expressed as means ± SEM (n = 5; *p≤0.05, Δ( ku,ligD,recA ) vs. wild-type; #p≤0.05, complemented strain I and II vs. Δ( ku,ligD,recA ) Mann-Whitney U test).
Article Snippet: A sample of each strain was taken during exponential and stationary phases of Mtb growth, and serial dilutions were prepared and plated on Middlebrook 7H10 agar supplemented with 10% OADC.
Techniques: Infection, Cell Culture, MANN-WHITNEY