Gram Negative
Well, sweetheart, Gram's stain is used to differentiate bacteria into two groups based on their cell wall composition - either Gram-positive or Gram-negative. On the other hand, Wright's stain is a Romanowsky stain used in hematology to stain blood cells for microscopic examination. So, in a nutshell, one is for bacteria and the other is for blood cells. Hope that clears things up for you, darling.
gram staining is a biochemical method of identifying bacteria in a more specific way.Thus it is important to differentiate gram positive and gram negative bacteria.
I believe what you're looking for is the stain that can differentiate between Gram-negative and Gram-positive bacteria: two types of eubacteria. So the staining method is called the Gram method. Crystal violet will remain trapped in Gram-positive bacteria due to their thicker cell walls, causing them to stain purple. Crystal violet can be washed out of Gram-negative cell walls after alcohol treatment to remove their outer lipid membrane, and the cells can be counterstained with a red, positively charged stain. In the end, Gram-positive bacteria will look purple, and Gram-negative bacteria will look red. See Wikipedia for more details.
The decolorizing agent in the acid fast stain is acid alcohol. The decolorizing agent in the gram stain is ethanol.
It depends upon the primary stain used. In Gram-staining the primary stain is Crystal Violet. P. aureus stains (and remains after decolorizing) purple which indicates that it is a Gram-positive bacteria.
gram negative
No, acid-fast bacteria do not stain gram-negative when subjected to the gram stain.
Gram stain
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.
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.
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.