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

Gram-positive and Gram-negative bacteria are two different types of bacteria. One method that scientists use to classify bacteria is Gram staining, which is the most commonly performed laboratory ...

Gram-positive bacteria, such as Staphylococcus, appear blue or purple under a microscope when scientists apply a stain. Conversely, Gram-negative bacteria do not hold the dye well.

Being able to differentiate bacterial species is important for a host of reasons. While molecular techniques can determine the specific species, even without getting into the molecular nitty gritty, ...

Gram-positive bacteria are bacteria with thick cell walls. In a Gram stain test, these organisms yield a positive result. Here’s why knowing whether the result is positive or negative is important.

Gram staining is a type of differential staining used to distinguish between Gram positive and Gram negative bacterial groups, based on inherent differences in their cell wall constituents. Stains ...

The difference between gram-negative and gram-positive bacteria can affect their recommended treatment plan. Gram stains can be performed on various types of specimens, including: blood ...

Some types of gram-positive bacilli are pathogenic, which means they cause diseases in people. Some of the major gram-positive bacteria that cause diseases include: ‌ Anthrax.