Gram-positive bacteria show blue or purple after Gram-staining in a laboratory test. They have thick cell walls. Gram-negative bacteria show pink or red on staining and have thin walls.

The new compounds target a protein, LpxH, which is used by Gram-negative bacteria in a pathway to synthesize lipopolysaccharide (LPS), a structural component in the outer membrane (OM) of the ...

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. Gram-negative ...

One such useful classification – if a bacterium is gram positive or gram negative - is based on the structure of bacterial cell walls. Gram positive bacteria are surrounded by a single thick ...

A team of researchers at the University of California, Los Angeles (UCLA) has introduced a virtual Gram staining technique that could transform how microbiologists stain and classify bacteria.

A team led by Paul Hergenrother at the University of Illinois Urbana-Champaign has discovered a new antibiotic that exclusively targets gram-negative bacteria and avoids wiping out the ecosystem ...

Bacteria are of two types – gram-positive and gram-negative – based on their characteristics. The cell membrane in gram-positive bacteria is roughly 20 times thicker than that of gram-negative ...

Here’s how it works. 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 ...

Bacteria with thick peptidoglycan are called gram positive. If the peptidoglycan layer is thin, it's classified as gram negative. A gram-positive bacillus doesn't have an outer cell wall beyond ...

One such useful classification – if a bacterium is gram positive or gram negative - is based on the structure of bacterial cell walls. Gram positive bacteria are surrounded by a single thick ...