2008n-295 576 algae animal biologicalfactors bioreactors biosynthesis biotechnology cellnuclei cellnucleus cellularsenescence electromagneticfields elfelectromagneticfields environmentalaspects environmentalexposure environmentalmonitoring eukaryoticcells evolution genetic geneticallymodified genetics genetictransformation methods microalgae microbiology morphology mortality myxomycetes organisms physiology protista protozoa qx50b433s1988 qx50r151i1982a radiationeffects radiationmonitoring reproduction sexualbehavior transformation ultrastructure