Sökning: "bacterial evolution"
Visar resultat 11 - 15 av 135 avhandlingar innehållade orden bacterial evolution.
11. Genome Evolution and Niche Differentiation of Bacterial Endosymbionts
Sammanfattning : Most animals contain chronic microbial infections that inflict no harm on their hosts. Recently, the gut microflora of humans and other animals have been characterized. However, little is known about the forces that shape the diversity of these bacterial communities. LÄS MER
12. NMR Studies of Bacterial Albumin-Binding Modules
Sammanfattning : Peptostreptococcus magnus and group C/G streptococci are Gram-positive cocci that are part of the normal flora and reside in more or less the same locations in the host. Protein G of group C/G streptococci was originally described as binding IgGFc of several species and later shown to also bind human serum albumin and albumins from various animal species. LÄS MER
13. Bacterial Resistance to Antimicrobial Peptides : Rates, Mechanisms and Fitness Effects
Sammanfattning : The rapid emergence of bacterial resistance to antibiotics has necessitated the development of alternative treatment strategies. Antimicrobial peptides (AMPs) are important immune system components that kill microbes rapidly and have broad activity-spectra, making them promising leads for new pharmaceuticals. LÄS MER
14. Multi-Resistance Plasmids : Fitness Costs, Dynamics and Evolution
Sammanfattning : Antibiotic resistance is an escalating problem, not only due to less desirable treatment options and outcome, but also due to the economic burden to health care caused by resistant pathogens. Since the process of developing new antibiotics is slow, we need to carefully consider the usage of the antibiotics still available. LÄS MER
15. Dynamics of the Bacterial Genome : Rates and Mechanisms of Mutation
Sammanfattning : Bacterial chromosomes are highly dynamic, continuously changing with respect to gene content and size via a number of processes, including deletions that result in gene loss. How deletions form and at what rates has been the focus of this thesis. In paper II we investigated how chromosomal location affects chromosomal deletion rates in S. LÄS MER