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Leptospira as a genus has characteristics of both Gram negative and Gram positive bacteria, in that they have a double membrane with peptidoglycan attached to the inner membrane. Thus when stained they could appear either positive or negative, if one could even see them at all. This in addition to their extreme slenderness makes visualization by gram stain less than ideal. Typically one would observe this organism by darkfield microscopy rather than attempt a likely to fail Gram stain.
What else can I help you with?
Can a Gram stain a prion?
Protists are often stained using a silver stain, not a Gram stain.
What is the gram stain of enterobacter cloacae?
Enterobacter cloacae is a Gram-negative bacterium. It will stain pink or red in a Gram stain procedure.
What does gram negative on a serratia marcescens gram stain mean?
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.
What is the gram stain for clostridium perfringens?
Clostridium perfringens is a Gram-positive bacterium, meaning it will stain purple/blue with the Gram stain procedure due to its thick peptidoglycan layer.
What color is Gram- stain?
Gram- negative bacteria turns red to pink after the gram stain is performed.
Do acid-fast bacteria stain gram-negative when subjected to the gram stain?
No, acid-fast bacteria do not stain gram-negative when subjected to the gram stain.
Theories of principle of gram stain reactions?
Gram stain
What is the gram stain for cholera?
Gram Negative
Can a Gram stain a prion?
Protists are often stained using a silver stain, not a Gram stain.
What is the gram stain of H5N1?
The Gram stain is used for bacteria and not for viruses.
What is the gram stain of enterobacter cloacae?
Enterobacter cloacae is a Gram-negative bacterium. It will stain pink or red in a Gram stain procedure.
What is the Gram stain for measles?
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.
What is the counter or secondary stain used in the Gram stain procedure?
The counter or secondary stain used in the Gram stain procedure is safranin.
What gram stain is lassa fever?
Lassa fever is a virus. It does not have a gram stain characteristic.
Does yogurt stain gram positive or gram negative?
Yogurt contains mostly lactic acid bacteria, which are Gram-positive bacteria. This means they will stain purple under a Gram stain.
What color is E coli when stained?
If you are talking about a Gram Stain, then red. E. coli is Gram negative which means that Safranin will stain it red during a gram stain.
Why can't you use the gram stain on the pathogens?
Which pathogens can't you use the gram stain on? Some pathogens are gram negative such as Tuberculosis. Others are gram positive. Those you can stain with the gram stain. The differences have to do with the structure of the outer membrane. Not all pathogens are gram negatives. Staph and strep are gram positive. People die from Strep infections.
