Sökning: "bacteriophage"
Visar resultat 6 - 10 av 78 avhandlingar innehållade ordet bacteriophage.
6. Group I Introns and Homing Endonucleases in T-even-like Bacteriophages
Sammanfattning : Homing endonucleases are rare-cutting enzymes that cleave DNA at a site near their own location, preferentially in alleles lacking the homing endonuclease gene (HEG). By cleaving HEG-less alleles the homing endonuclease can mediate the transfer of its own gene to the cleaved site via a process called homing, involving double strand break repair. LÄS MER
7. The type I-E CRISPR-Cas system : Biology and applications of an adaptive immune system in bacteria
Sammanfattning : CRISPR-Cas systems are adaptive immune systems in bacteria and archaea, consisting of a clustered regularly interspaced short palindromic repeats (CRISPR) array and CRISPR associated (Cas) proteins. In this work, the type I-E CRISPR-Cas system of Escherichia coli was studied.CRISPR-Cas immunity is divided into three stages. LÄS MER
8. Bacterial viruses targeting multi-resistant Klebsiella pneumoniae and Escherichia coli
Sammanfattning : The global increase in antibiotic resistance levels in bacteria is a growing concern to our society and highlights the need for alternative strategies to combat bacterial infections. Bacterial viruses (phages) are the natural predators of bacteria and are as diverse as their hosts, but our understanding of them is limited. LÄS MER
9. Microbial ecology in deep granitic groundwater - activity and impact of viruses
Sammanfattning : The deep subsurface environments in granitic rock can be studied and sampled at the Äspö hard rock laboratory (HRL) close to Oskarshamn in Sweden. Here, the groundwater is anaerobic and total counts give numbers of 104 to 106 cells mL-1. However, these measurements do not reveal if the cells are active and alive. LÄS MER
10. Propionibacterium acnes and its phages
Sammanfattning : Microorganisms are everywhere! They can tolerate many diverse extreme environments, such as the human body. Even though many of us might associate the word microorganism with infections and disease, most are actually either harmless or even beneficial for us. LÄS MER