Gwybodaeth Modiwlau

The lecture course begins with an introduction the three Domains of life and includes a comparison of prokaryotes and eukaryotes. Most of the genetic and metabolic diversity of living organisms is microbial and this is highlighted from the outset. Applied aspects of microbiology, which have direct relevance to humans, such as the importance of microbes in fermented foods (eg wine, cheeses, etc), in pharmaceutical production (eg penicillin/enzymes) and as biocontrol agents are explored.

The prokaryotic Bacteria and Archaea are introduced, emphasising morphology, physiology and ecology and concluding with an examination of their role in human diseases. The structure and life cycles of viruses are explored and their role in disease and ecosystem function is investigated.

The kingdom Fungi is introduced through a survey of the major groups and their modes of growth. This set of lectures discusses the classification of living organisms and the diversity of form, genetic systems and life strategies. The diversity of form and function of autrotrophic micro-organisms, introducing both photosynthetic prokaryotes and eukaryotes (algae). Cell ultrastructure, morphology, growth and reproduction, nitrogen fixation and heterocyst function in thse organisms is then considered.

The final part of the module concludes with an overview of the role of microbes in terrestrial decomposition, in plant disease and as mutualistic symbionts of plants and animals.

Practical classes illustrate and consolidate aspects of the lecture course. Students will use light microscopy to examine a range of micro-organisms. Students will gain key skills in the safe handling of micro-organisms through simple experimental investigations. By the end of the course students will have acquired basic knowledge of sterile handling techniques. Video microscopy is extensively used to help in interpretation of the practical material. Practicals are assessed by means of tests within and/or after the practical classes.