منابع مشابه
Aerobic excretion of 1,2-propanediol by Salmonella typhimurium.
Salmonella typhimurium excreted the rhamnose fermentation product 1,2-propanediol not only under anaerobic conditions, but also under aerobic conditions. The absence of an aldehyde dehydrogenase enzymatic activity that oxidizes to lactate the lactaldehyde formed in the dissimilation of rhamnose raised the intracellular concentration of the aldehyde which was alternatively reduced to the excreta...
متن کاملIron-regulated excretion of alpha-keto acids by Salmonella typhimurium.
Excretion of alpha-keto acids by clinical isolates and laboratory strains of Salmonella typhimurium was determined by high-performance liquid chromatography analysis of culture supernatants. The levels of excretion increased markedly with increasing iron stress imposed by the presence of alpha,alpha'-dipyridyl or conalbumin in the medium. The major product was pyruvic acid, but significant conc...
متن کاملIron-Regulated Excretion of a-Keto Acids by Salmonella typhimurium
ROLF REISSBRODT, ROBERT KINGSLEY, WOLFGANG RABSCH, WIELAND BEER, MARK ROBERTS, AND PETER H. WILLIAMS* Robert Koch Institute, Wernigerode Branch, and Federal Institute for Health Protection of Consumers and Veterinary Medicine, Wernigerode Branch, D-38855 Wernigerode, Germany, and Department of Microbiology and Immunology, University of Leicester, Leicester LE1 9HN, and Department of Veterinary ...
متن کاملExcretion of unassembled hook-associated proteins by Salmonella typhimurium.
Hook-associated proteins (HAPs) were excreted into the culture medium of the Fla+ strain as well as into the growth medium of the filamentless mutants of Salmonella typhimurium. This indicates that the bacteria synthesize HAPs excessively, beyond the amount required for construction of flagella. The extra HAPs are shed into the culture medium after a definite amount of each HAP has been assembl...
متن کاملSalmonella in free-living exotic and native turtles and in pet exotic turtles from SW Spain.
We screened 78 native and 94 exotic turtles from natural ponds and 39 exotic pet turtles for presence of Salmonella, resulting with infection rates of 6.61%, 6.4%, and 5.1%, respectively. Concurrent shedding of multiple serotypes of the bacteria was only detected in one pet turtle. Eleven isolates were obtained in free-living turtles, including serotypes commonly found in reptiles and also the ...
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ژورنال
عنوان ژورنال: Public Health Reports (1896-1970)
سال: 1967
ISSN: 0094-6214
DOI: 10.2307/4593144