The antivitamin roseoflavin (RoF) is a structural analogue and competitive inhibitor of riboflavin (RF, vitamin B 2 ). Stimulated by a recent report that cariogenic Streptococcus mutans is prototrophic for RF, we conducted pilot investigations on the effect of RF and RoF on the growth of selected microbial isolates from human saliva to lay a first foundation whether oral application of RoF might be suitable to modify the human...

Slavonian oaks ( Quercus robur subsp. slavonica (Gáyer) Mátyás) originating from Croatia have been cultivated in Germany mainly in the Münsterland region of North Rhine-Westphalia since the second half of the nineteenth century. Compared to indigenous pedunculate oak stands in Germany, they are characterised by their late bud burst, but also by their excellent bole shape and faster height growth. Previously, Slavonian peduncul...