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 ...

There are many ways of classifying bacteria. One method is based on the cell membrane. In 1884, a bacteriologist named Christian Gram created a test that could determine if a bacterium had a thick, ...

There are two main types of bacteria, and these categories reflect the microbes' biology and their vulnerability to different antibiotics. When you purchase through links on our site, we may earn an ...

A new drug conjugate tricks Gram-negative bacteria into succumbing to an antibiotic that usually works only against Gram-positive bacteria. Gram-negative bacterial infections are tough to treat ...

The World Health Organisation (WHO), on Monday, published its first-ever list of antibiotic-resistant “priority pathogens”, a catalogue of 12 families of bacteria that posed threat to human health.

The bacteria that cause food poisoning, bubonic plague, and whooping cough all deploy the same weapon to infect the body. A molecular "syringe" sticks out of the bacteria, pokes a hole in a nearby ...

Gram-positive bacteria have thick cell walls. A Gram stain test, which involves a chemical dye, stains the bacterium’s cell wall purple. On the other hand, gram-negative bacteria stain pink instead.

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. They release ...