Staying in shape: MBL microscopy helps reveal how bacteria grow long, not wide
(PHYSorg.com Biology)

The slender, rod-shaped Bacillus subtilis is one of the best-studied bacteria in the world, a go-to system for exploring and understanding how bacteria grow, replicate and divide. One of its outstanding mysteries has been how it manages to keep its precise diameter while growing and and getting bigger end-to-end.