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

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-negative bacteria are harder to kill because of their harder cell wall. When their cell wall is disturbed, gram-negative bacteria release endotoxins that can make your symptoms worse.

Researchers from the National University of Singapore (NUS) have solved a 60-year-old mystery in bacterial cell envelope ...

Peptidoglycan is the main stress-bearing component of the bacterial cell wall 1,2,3.In cylindrical Gram-negative bacteria, glycan chains are currently thought to run roughly circumferentially ...

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.

Peptidoglycan layer: In Gram-positive bacteria, the peptidoglycan is a 20 to 80 nm (nanometer) thick structure found within its cell wall. This layer is only 2 to 3 nm thick in Gram-negative bacteria.

Gram negative bacteria. Gram negative bacteria appear a pale reddish color when observed under a light microscope following Gram staining. This is because the structure of their cell wall is unable to ...

Toxins: If something disturbs the cell wall of Gram-negative bacteria, they can release endotoxins. Types of Gram-positive bacteria. There are a number of different types of Gram-positive bacteria.