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Well, Macconkey Agar II plates have Gram Crystal Violet in them so there are a number of bacterial species that can absorb it and turn "very pink." The way to narrow it down is to identify whether it grows in chains or clusters. But other than that, it is hard to tell.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoMacConkeys Agar is a special bacterial growth medium that is selective for Gram negative bacteria and can differentiate those bacteria that are able to ferment lactose. It contains bile salt and crystal violet to inhibit the growth of most Gram positive bacteria.
Lactose fermenting bacteria produce pink color colonies on MacConkeys Agar .
Following bacteria can produce pink colour colonies ...
Escherichia Coli
Klebsiella
Enterobacter
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What is a Mac plate?
MacConkey Agar plate
Is macconkey agar a synthetic media?
yes
Why MacConkey agar is solid at room temperature while MacConkey broth remains Liquid at room Temperature?
MacConkey agar is solid at room temperature because it is a gel-like polysaccharide. Broth that has 1.5 percent agar in it and is heated up will become a liquid.
Will Alcaligenes faecalis grow on MacConkey agar?
yes
Why won't campylobacter jejuni grow on macconkey agar?
campylobacter can growth in mcconkey agar.
What type of medium is macconkey agar?
types macconkey agar
What is a Mac plate?
MacConkey Agar plate
Is macconkey agar a synthetic media?
yes
Is macConkey agar defined or undefined?
Undefined.
How do you grow Klebsiella pneumoniae?
MacConkey agar
Why MacConkey agar is solid at room temperature while MacConkey broth remains Liquid at room Temperature?
MacConkey agar is solid at room temperature because it is a gel-like polysaccharide. Broth that has 1.5 percent agar in it and is heated up will become a liquid.
What is the name of the acide base color indicator found in MacConkey agar?
Lac+ bacteria is acid base color indicator that lowers the pH of the MacConkey agar. The MacConkey agar contains neutral red dye, lactose, peptone, and crystal violet dye.
How does yersinia look on nutrient agar EMB agar and MacConkey agar?
Colorless, it doesnt ferment lactose.
Does enterococcus faecalis grow on macConkey agar?
this MacConkey with crystal violet can grow enterococcus
What is the culture characteristic of Ecoli thst grow on macconkey agar?
E.coli shows pink colour colonies in MacConkey agar due to fermentation of lactose
Does micrococcus luteus grow on macconkey agar?
MacConkey agar is designed to grow Gram-negative bacteria and also contains crystal violet dye which inhibits the growth of Gram-positive bacteria. Since S. aureus is Gram-positive it should not grow on MacConkey agar. No. MacConkey agar inhibits MOST of the Gram-positive bacteria. There are some Gram-positive bacteria that can tolerate bile-salt are able to grow in MacConkey agar. Enterococcus and some species of Staphylococcus are able to grow in MacConkey. (lack citation though)
Will Alcaligenes faecalis grow on MacConkey agar?
yes
