[The quantitative composition of the intestinal lactoflora before and after space flights of different lengths]. / Die quantitative Zusammensetzung der Lactoflora des Verdauungstrakts vor und nach kosmischen Flügen unterschiedlicher Dauer.

Due to the emotional stress before the take off the lactoflora of 24 cosmonouts shows distinct changes regarding the spectrum of different species of Lactobacilli. Compared to long-time flights after short-time flights even stronger alterations are observed. The reason is that the disturbances which take place before the take-off as to the short space of time cannot be balanced by the macroorganism. Additionally, after a certain adaptive period the factors of the space travel begin to act. There are characteristic individual particularities regarding the number of Lactobacilli in the saliva and the feces of the cosmonouts.

[Adhesive properties of lactobacilli isolated from the human gastrointestinal tract]. / Die adhäsiven Eigenschaften der aus dem Verdauungstrakt des Menschen isolierten Lactobazillen.

The adhesive and hemagglutinating properties of 34 tribes of Lactobacillus have been examined. 21 tribes came from human saliva and feces. 23.5% of the tribes showed strongly, 50% weakly adhesive properties. The remaining tribes showed average effects. Most of the strongly adhering tribes were isolates from human specimens. In the group of weakly adhering tribes those from collections dominated. 4 of 9 examined species differed in their adhering capacity. These were L. acidophilus, L. salivarius, L. casei, and L. fermentum. Only weakly adhering tribes showed hemagglutination of human erythrocytes. Therefore, there exists obviously, a reversed relation between the adhering and the hemagglutinating properties of Lactobacilli.