Search for dissertations about: "host-"
Showing result 1 - 5 of 2223 swedish dissertations containing the word host-.
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1. Host-bacteria interactions : Host cell responses and bacterial pathogenesis
Abstract : Helicobacter pylori colonizes the human stomach, where it causes gastritis that may develop into peptic ulcer disease or cancer when left untreated. Neisseria gonorrhoeae colonizes the urogenital tract and causes the sexually transmitted disease gonorrhea. READ MORE
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2. Ecology and evolution in a host-parasitoid system : Host search, immune responses and parasitoid virulence
Abstract : In host-parasitoid systems, there is a continuous coevolutionary arms race where each species imposes a strong selection pressure on the other. The host needs to develop defence strategies in order to escape parasitism and the parasitoid must evolve counter-defence strategies in order to overcome the host’s immune defence and successfully reproduce. READ MORE
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3. Evolutionary genomics of host-microbe interactions
Abstract : The microbes living inside hosts have highly important consequences for host health and fitness. From the host’s perspective, some microbes exhibit mutualistic tendencies, others parasitic, and some commensal, but this is context-dependent and opportunistic lifestyles are widespread in nature. READ MORE
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4. Bacteria-host cell interactions : Studies on initial colonization, antimicrobial peptides, and biofilms
Abstract : The obligate human pathogen Neisseria meningitidis asymptomatically colonizes the upper respiratory tract, but crossing of the epithelial barrier can cause life-threatening meningitis and/or sepsis. N. READ MORE
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5. Evolutionary and mechanistic aspects of insect host plant preference
Abstract : Plant feeding insects comprise about 25% of all animal species on earth and play an important role in all ecosystems. Although we understand that their association with plants is a key-factor driving the diversification in this group, we still have large gaps in our knowledge of the underlying processes of this relationship. READ MORE