About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.
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- Joined: Sun Oct 16, 2005 6:26 am
What color is S. aureus if you omit the iodine in gram staining?
I think it would be colorless since the dye would not be trapped inside the cell wall???
Why doesn't methane blue work as a counterstain vice safranin?
- Death Adder
- Posts: 55
- Joined: Mon Oct 24, 2005 9:12 am
if you don't use iodine,the complex substance(CVI dye complex)----which will be held back by the cell wall of Gram positive bacteria----can not form.
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- Joined: Tue Nov 01, 2005 11:34 pm
exactly so your dye will wash off during the rest of the gram staining process
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