Type IV pili were reported to have various roles, including motility in Gram-positive cells. As TM7 cells are thought to possess a Gram-positive cell envelope (this has yet to be confirmed), these ...

And instead of the metabolic reactions occurring within cells, the bacteria actually move ... University of Massachusetts Amherst shows that pili—tiny filaments jutting out from bacteria ...

Alternatively, cells can measure changes in concentration ... toward chemical sources using tiny grappling hooks called pili.