Figure 7From: Quorum sensing influences growth and photosynthetic membrane production in high-cell-density cultivations of Rhodospirillum rubrumDynamics of a microaerobic HCD cultivation of R. rubrum . Measurements were made at multiple time points of a growing culture (indicated by increasing optical density). A: growth rate, PM production, protoporphyrin IX (PPIX) and Mg-protoporphyrin IX monomethylester (Mg-PPIXmme) accumulation. B: Relative amounts of accumulated AHL in mAUsOD-1 ml-1. C: Accumulation of mRNA from selected lux-type genes. mRNA levels are related to the expression of these genes in aerobically grown R .rubrum cultures at an OD of 2. These data was obtained from the Fed-Batch cultivation shown in Figure 1.Back to article page