Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories ...

Gram staining is one way scientists can identify bacteria. Gram-positive bacteria, such as Staphylococcus, appear blue or purple under a microscope when scientists apply a stain. Conversely, Gram ...

A technician will use a special staining technique to make it easier to see bacteria under a microscope. What do the results of a gram stain mean? If your gram stain results are negative, it means ...

It is still known as one of the most important staining techniques used in microbiology to identify bacteria under a microscope. Gram first dripped reagents, a substance designed to cause a ...

B. subtilis was initially grown in Luria-Bertani broth before being transferred to the modified MSgg medium. Isotope labeling was performed using 13 C-labeled glycerol to enhance NMR sensitivity.

The Google doodle shows Gram carrying out an experiment, a close up of the bacteriologist, a microscope and bacteria particles. Gram was appointed professor of medicine at the University of ...