Percentages evolution of asexual stages of synchronous culture of 3D7 Plasmodium falciparum clone under different oxygen tensions during 86 hours. Each percentage represents the mean ± standard deviation of three experiments. R: Ring. MT: Mature Trophozoïte: S: Schizont. RO: Rosace. Blue histograms correspond to 5% O2; Purple histograms correspond to 10% O2. Yellow histograms correspond to 21% O2.