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Helicobacter pylori cells cultured on solid medium were quantitatively tested for haemolytic activity against erythrocytes of man, sheep, the guinea pig and rabbit. Using 4-day and 8-day cultures of two standard strains (ATCC 43504, IMMi 676), human erythrocytes were not lysed by 10 % bacterial suspensions. Rabbit erythrocytes were the most sensitive to(More)
Antisera against the two major flagellar antigens of Pseudomonas aeruginosa were obtained by immunization of rabbits with isolated flagella and absorption of contaminating antisomatic antibodies. In the conventional slide agglutination test, the pure H antisera did not agglutinate the flagellated cells of the homologous strains. The addition of protein(More)
Race-non-specific, or quantitative, pathogen resistance is of high importance to plant breeders due to its expected durability. However, it is usually controlled by multiple quantitative trait loci (QTL) and therefore difficult to handle in practice. Knowing the genes that underlie race-non-specific resistance (NR) would allow its exploitation in a more(More)
This work elucidates the impact of charge transport on the photovoltaic properties of organic solar cells. Here we show that the analysis of current-voltage curves of organic solar cells under illumination with the Shockley equation results in values for ideality factor, photocurrent and parallel resistance, which lack physical meaning. Drift-diffusion(More)
To extend the flagella specific H antigenic schema of P. aeruginosa (ANSORG, 1978), investigations are carried out to reveal phase variation in this species as in Salmonella or Arizona. With conventional methods, i.e. examination of single colonies after plating the cultures on standard nutrient agar or the phase reversal techniques of Craigie (1931) and(More)
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