"Microbial Engine: Algae and Protozoa - Ecology to Biotechnology"  -  this professionally made film illustrates the crucial function of algae and protozoa in the biological processes that support life on Earth and their role in the new science of biotechnology.

The "Microbial Engine" video was produced by Science Business Interface Plc with the staff of the CCAP. The project was funded by the Natural Environment Research Council (NERC) with support from Shell Education Service (Shell UK Ltd).  As well as the original VHS/PAL video, we can now supply the film on DVD at a price of 19.99 GBP (inc. VAT).

In the natural environment, algae and protozoa can be considered to comprise a "Microbial Engine" which regenerates the major resources for life on Earth.

This 36 minute film presents beautiful pictures of microscopic algae and protozoa from marine, freshwater and terrestrial environments, including some surprising and unusual habitats.  It covers the major ecological roles for these organisms in relation to current problems of toxic algal blooms, acid rain and climate change.  the importance of research is emphasised, including the need for the isolation and maintenance of cultures in culture collections.  The film looks forward to the increasing exploitation of these microorganisms in the growing science of biotechnology.  The documentary is suitable for a wide audience, especially for schools, colleges and universities.

Below is a breakdown of the film's three parts:

Part One - Introduction to algae and protozoa

Introduces the 'Microbial Engine' concept and defines briefly the group of microorganisms featured - the algae and protozoa.  A short review of their basic biological characteristics is illustrated with microscopy  footage of a range of species from freshwater, marine and terrestrial ecosystems.  Emphasis is placed on the diversity in form and function of the algae as primary producers and the protozoa as omnivorous consumers.

Part Two - Algal and protozoan habitats and blooms

Beginning with Antarctic algal colonisers, a rich and colourful variety of microbial habitats - from the familiar to the unusual - is illustrated.  The important concept of population bloom formation is introduced and a range of bloom phenomena and their causative agents shown.  The ecological and economic importance of these populations is emphasised with reference to scientific monitoring studies of bloom formation in seas, lakes and artificial tanks.  The section ends by featuring the role of protozoa in sewage treatment processes - an example of the beneficial effects of dense microbial populations under controlled conditions.

Part Three - Sampling, culture collections and biotechnology

The dual necessity of aquatic sampling programmes and laboratory research on single species cultures is emphasised.  The importance of maintaining culture collections to serve the needs of research, education and the growing biotechnology industry is also featured, and exemplified by a brief survey of presently established commercial ventures employing bulk production methods for these microorganisms.  These include production of fine chemicals and pigments, as well as food for aquaculture industries.  The video ends on a speculative note by suggesting potential areas for the future exploitation of algae and protozoa by humans.

Video or DVD copies can be ordered from CCAP, please contact us by email or via our online enquiry form.  A Teacher's Guide can also be provided, comprising a full transcript of the commentary, together with expanded notes and a list of the organisms featured..