Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories reflect big differences in the microbes' biology, and they also dictate ...

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 ...

The most important endospore-forming bacteria are members of the genera Bacillus and Clostridium, both of which are Gram-positive rods. An endospore is a dense, multilayered structure that contains ...

They add that gram-positive rods, which can lead to various infections ... "They have been found to contain a whopping 6,267 counts of bacteria per square inch, which is even more than found ...