Bacteria are difficult to see when they are not stained because they are almost colorless.
1. Staining a slide enables a high contrast between the bacteria and the background.
2. It defines the bacterial morphology (size, shape and arrangement).
3. It enables us to observe structures like flagella, capsules and endospores.
Yes sometimes it is necessary to add a dye to make something visible or stand out. When you look at onions, you can add iodine to make the cells stand out. The colored stain is a dye that won't react with the object on the slide.
Preperation of slides and Leifson flagella stain?
Staining rack is used to hold many glass slides at a time. By putting slides on a staining rack, you can pour dye simultaneously and it will help to reduce extra dye or stain.
Gram staining is used to identify whether a bacterium is gram positive or gram negative. Slides can be dried using filter paper or tissues. The technique is based on the reaction of stain that happens with the membrane of bacteria.
The basic H & E stain will colour a cross section and longitudinal section very nicely. There are other stains if your looking stain specifics such as the myeline sheath.
they are looking for the answers to the problem
There is no Gram stain for the rabies virus - it does not pick up either the stain or the counter-stain and has no official Gram stain status like bacteria do. When scientists are looking at slides of brains to see if an animal was infected with rabies, they use a special immunofluorescent stain made of antibodies against the rabies virus linked to either a vividly colored pigment or a fluorescent pigment. If the rabies virus is present, the antibodies in the stain adhere to the viral particles and then the pigment becomes fixed to the tissue as well, allowing the pathologist to "see" the virus (actually just that the virus is present and approximately where it is at - the virus is too small to see with a standard light microscope).
Preperation of slides and Leifson flagella stain?
To remove excess stain before mounting
it helps in staining many slides at a time, as when we put many slides on a rack we can pour dye simoultaneously on all the slides and it will also help in reducing loss of extra dye or stain.
Longer incubation of gram-stained slides causes some gram positive bacteria to become gram negative.
Staining rack is used to hold many glass slides at a time. By putting slides on a staining rack, you can pour dye simultaneously and it will help to reduce extra dye or stain.
Using stains on slides help show some details that may be unclear otherwise, especially in cells.
Diff-Quick is a type of stain used to quickly evaluate slides in clinical practice. It consists of three containers of stain (although the first one is actually the fixer, not a stain). A slide is dipped in each one for about 10 seconds and then rinsed.
I am also looking for enterpris oil penitrating wood stain
because they like eating scientists they like their legs <--------&
Gram staining is used to identify whether a bacterium is gram positive or gram negative. Slides can be dried using filter paper or tissues. The technique is based on the reaction of stain that happens with the membrane of bacteria.
Google 'Snow tubing', I think that's what you're looking for.