IN the course of investigations carried out on the influence of bacteria and fungi on flour ... encountered by repeated contamination of the Petri dishes used for spore counts by spreaders such ...

“The two became totally, irreversibly intertwined,” Chimileski added. Ever since, Chimileski has captured the intricate structures of hundreds of bacterial biofilms at microscopic and macroscopic ...

there are large petri dishes, and then there is MEGA, an enormous, 2-foot-by-4-foot slab of black agar infused with a gradient of antibacterial drugs. Researchers built this behemoth to watch ...

An inoculating loop can be used to transfer bacteria. It is sterilised by heating it to red hot in a Bunsen flame, before and after use. To inoculate the agar, lift the lid of the Petri dish and tilt.