Sökning: "flagella"

Visar resultat 1 - 5 av 29 avhandlingar innehållade ordet flagella.

1. 1. Reverse structural biology: Cellular processes uncovered by electron microscopy

   Författare :Jacob Croft; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; flagella; nuclear envelope budding; TAILS; cryo-EM; microtubule inner protein;

   Sammanfattning : This thesis contains two projects, both using electron microscopy as the primary technique. In the first project, nuclear envelope budding (NEB) is investigated as an alternate method of transport across the nuclear envelope. LÄS MER

3. 2. Mammalian sperm flagella and cilia

   Författare :Jikui Guan; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : In mammals, both sperm flagella and cilia are axoneme-containing organelles. The sperm flagella are major parts of the spermatozoa that are male gametes produced in the testis from progenitor spermatogonia through a process called spermatogenesis. LÄS MER

4. 3. It Takes Two to Tango : Bacterial heterogeneity and host cell features govern Salmonella infection

   Författare :Viktor Ek; Mikael E. Sellin; Francisco García del Portillo; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Salmonella; swimming; swim pattern; targetting; virulence; invasion; host-pathogen interactions; epithelium; epithelial cells; macrophages; monocytes; monolayer; flagella; genome; genetic; barcoding; discreet-invasion; shape; morphology; antibiotics; persistence; Mikrobiologi; Microbiology;

   Sammanfattning : Salmonella enterica serovar Typhimurium (S.Tm) causes enterocolitis with significant worldwide morbidity and mortality. The general aim of this thesis is to investigate variation in host cell invasion mechanisms used by S.Tm across different host cell contexts, as well as the influence of bacterial cell-cell heterogeneity on invasion-relevant S. LÄS MER

5. 4. Macromolecular Matchmaking : Mechanisms and Biology of Bacterial Small RNAs

   Författare :Erik Holmqvist; E. Gerhart H. Wagner; Udo Bläsi; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Small RNA; sRNA; non-coding RNA; antisense; gene regulation; post-transcriptional regulation; translational control; outer membrane protein; OmpA; MicA; biofilm; flagella; curli; bistability; Lrp; MicF; CsgD; FlgM; OmrA; OmrB; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology;

   Sammanfattning : Cells sense the properties of the surrounding environment and convert this information into changes in gene expression. Bacteria are, in contrast to many multi-cellular eukaryotes, remarkable in their ability to cope with rapid environmental changes and to endure harsh and extreme milieus. LÄS MER

7. 5. Adapting to succeed : Post-transcriptional gene regulation in Salmonella

   Författare :Alisa Rizvanovic; Erik Holmqvist; Fabien Darfeuille; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Salmonella; gene regulation; post-transcriptional regulation; RNA-binding protein; ProQ; sRNA; flagella; motility; antibiotic persistence;

   Sammanfattning : Salmonella are zoonotic pathogens of worldwide economic and health importance. Both during life outside and inside the host, these pathogens are subject to continuously changing environmental conditions, such as temperature changes, acid stress, nutrient limitations, and others. LÄS MER