Two structurally different appendages, thin and thick pili, are found in members of the genus Acinetobacter. The presence of pilus structures correlates with different phenotypes, such as adherence to surfaces, a trait not only observed in pathogenic Acinetobacter species, as well as motility. However, their distinct individual roles were unknown. To characterize the role of different pili in t...

We analyzed the pathogenicity of various serotypes of Listeria monocytogenes using a Balb/c mouse intravenous injection model. The survival rates of mice inoculated with strains NS1/2b (serotype 1/2b), NS3b (serotype 3b) and NS 4b (serotype 4b) were 60, 63.6 and 63.6%, respectively. Although the survival rates were similar, the bacterial growth in the liver of NS3b-infected mice was 144.5-fold ...

Animal diseases due to enterotoxigenic Escherichia coli (ETEC) typically appear as severe watery diarrhoea during the first few days of life (also a few days after weaning in pigs). ETEC adhere to the small intestinal microvilli without inducing morphological lesions and produce enterotoxins acting locally on enterocytes. This action results in the hypersecretion (of water and electrolytes) and...

RNase P is an RNA-based enzyme primarily responsible for 50-end pre-tRNA processing. A structure of the bacterial RNase P holoenzyme in complex with tRNA revealed the structural basis for substrate recognition, identified the active site location, and showed how the protein component increases functionality. The active site includes at least two metal ions, a universal uridine (U52), and P RNA ...

Aloe vera (AV) süt, dondurma, şekerleme, sağlık içecekler gibi fonksiyonel gıdalarda kullanılmaktadır. Yapılan bu araştırmada, yoğurt kültürüne probiyotik ve teknolojik özelliklere sahip olan Lactobacillus plantarum AB6-25 suşu, %1, 2,5 5 oranlarında AV jel içeceği ilave edilerek üretimi yapılmıştır. Depolamanın 1, 7, 14 21. günlerinde üretilen yoğurtların fizikokimyasal, mikrobiyolojik analizl...