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

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, ...

Infectious bacteria are growing increasingly resistant to drugs, which is becoming a serious threat to public health worldwide. Bacteria can be classified based on various characteristics, such as by ...

Gram-positive bacteria have thicker cell walls that retain the purple color from Gram stain, which can quickly differentiate cell types based on the width of their cell walls.

A gram-negative cell’s thin wall crumbles in the alcohol wash and releases the dye, he explains. In gram-positive cells, crystal violet slowly drains from the thick peptidoglycan barrier, ...

All the latest science news on gram-negative bacteria from Phys.org. Find the latest news, advancements, and breakthroughs. ... Cell & Microbiology Jul 10, 2025 ...

In fact, the authors noted, Gram-negative bacteria represent four of the top six pathogens causing antibiotic-associated deaths, with some studies indicating that 75% of deaths from drug-resistant ...

Researchers from the National University of Singapore (NUS) have solved a 60-year-old mystery in bacterial cell envelope biology, defining the primary function of an important protein complex ...

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 ...

In gram positive bacteria, the large crystal violet-iodine complexes are then unable to penetrate and escape the thick peptidoglycan layer, resulting in purple stained cells. However, in gram negative ...