Figure 3From: Lack of detectable DNA uptake by transformation of selected recipients in mono-associated ratsFaecal concentration (cfu/g faeces) of B. subtilis recipients (■) in eight mono-associated rats. The concentration of the dosage culture (cfu/ml) given during the three weeks is also indicated (◆). The detection limit for detecting transformants was 10 cfu/g faeces. Vertical bars represent SEM.Back to article page