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.

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 ...

Chinese researchers have swabbed the Chinese Tiangong Space Station and found a novel strain of bacterium called 'Niallia ...

Conclusions These results validate a novel mechanism for CRC that involves endogenous CIN and cellular transformation arising through a microbiome-driven bystander effect. Commensal bacteria and ...

Researchers have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it gained ...

Scientists have discovered a previously unknown strain of microbe after analyzing samples taken from China's Tiangong space ...

There's something make-believe, almost Pokémon-like in a new species of bacteria found living on a mud flat in Oregon.

The bacteria that cause tuberculosis (TB) may have an "on-off switch" that lets them pause and restart growth, according to a ...

New research from the University of Cincinnati demonstrates how specially engineered bacteria taken orally can operate as a ...

Paraneoplastic syndrome represents a major systemic complication in cancer patients but its causes remain unclear. This study ...