Mycoplasma (Gram +), Hemophilus (Gram -), Klebsiella (Gram -), Legionella (Gram -) among many that cause pneumonia. Do have another in mind?
Bacterial pneumonia is typically caused by organisms such as Streptococcus pneumoniae, Haemophilus influenzae, and Mycoplasma pneumoniae. These bacteria can have different Gram stain characteristics: S. pneumoniae is Gram-positive, H. influenzae is Gram-negative, and M. pneumoniae lacks a cell wall and is therefore classified as "neither" in Gram staining.
Protists are often stained using a silver stain, not a Gram stain.
Enterobacter cloacae is a Gram-negative bacterium. It will stain pink or red in a Gram stain procedure.
I assume you mean bacterial pneumonia, from there it is dependent on what type of bacteria is causing the pneumonia. For example Streptococcus pneumoniae is gram positive, but Klebsiella pneumoniae gram negative.On the whole though, bacterial pneumonia is more typically caused by gram positive bacteria.
Bacteria are gram positive or gram negative. Serratia happens to be a gram negative bacteria. They appear pink on a gram stain. Gram positive bacteria stain to a purple color on a gram stain. We can classify and ID bacteria using their gram stain and shape. Some antibiotics only work on gram negative bacteria and some only work on gram positive bacteria. It helps a doctor know which antibiotic to use.
It is purple. The bacteria that cause it are gram-positive, which means that under the gram stain they become purple. Your lungs produce the lung stain when they are sick, so pneumonia is purple.
Bacterial pneumonia is typically caused by organisms such as Streptococcus pneumoniae, Haemophilus influenzae, and Mycoplasma pneumoniae. These bacteria can have different Gram stain characteristics: S. pneumoniae is Gram-positive, H. influenzae is Gram-negative, and M. pneumoniae lacks a cell wall and is therefore classified as "neither" in Gram staining.
No, acid-fast bacteria do not stain gram-negative when subjected to the gram stain.
Gram stain
Gram Negative
Protists are often stained using a silver stain, not a Gram stain.
The Gram stain is used for bacteria and not for viruses.
Enterobacter cloacae is a Gram-negative bacterium. It will stain pink or red in a Gram stain procedure.
Bacteria stain either gram-positive or gram-negative based on the presence or absence of a cell wall. Viruses do not pick up a gram stain.
The counter or secondary stain used in the Gram stain procedure is safranin.
Lassa fever is a virus. It does not have a gram stain characteristic.
Yogurt contains mostly lactic acid bacteria, which are Gram-positive bacteria. This means they will stain purple under a Gram stain.