Microbial Behavior in a Heterogeneous World
Tom Fenchel
Most microorganisms are motile during at
least part of their life cycle, because they need to find optimal
conditions in a patchy world. The sheer volume of microorganisms in the
biosphere means that their motile sensory behavior also contributes to
the global transformation and cycling of matter. How microorganisms move and how they orient themselves using environmental cues are integral to understanding the complex structure and function of microbial communities, but although motility in response to external stimuli was first described more than 120 years ago, understanding of
the cellular and molecular mechanisms involved has only been achieved
more recently.
Marine Biological Laboratory, University of Copenhagen,
Strandpromenaden 5, DK-3000 Helsingør, Denmark. E-mail:
tfenchel{at}zi.ku.dk