A team of researchers at the University of California, Los Angeles (UCLA) has introduced a virtual Gram staining technique ...

“Gram stains show whether the bacteria in urine samples are gram positive or negative by staining them purple or pink,” says Miyatsuka. “Only the most experienced technicians can make ...

bacteria have been classified into Gram-positive and Gram-negative pathogens according to their staining patterns.

Bacteria that produce lipase will hydrolyze the olive oil and produce a halo around the bacterial growth. The Gram-positive rod, Bacillus subtilis is lipase positive (pictured on the right) The plate ...