Gel matrix with redox purple for testing and characterizing microorganisms

A method for testing microorganisms selected from the group consisting of bacteria and fungi, comprising the steps of:

• a) providing a testing device comprising a plurality of testing wells, wherein said wells contain redox purple, a testing substrate and one or more gel-initiating agents;
• b) preparing a suspension comprising a pure culture of microorganisms and an aqueous solution comprising a gelling agent, under conditions such that said suspension remains ungelled;
• c) introducing said suspension into said wells of said testing device under conditions such that said suspension forms a gel matrix within said well, such that said microorganisms are within said gel matrix;
• and
• d) detecting the response of said microorganisms to said testing substrate.

A method for testing microorganisms selected from the group consisting of bacteria and fungi, comprising the steps of:

• a) providing a testing device comprising a plurality of testing wells, wherein said wells contain a testing substrate and one or more gel-initiating agents;
• b) preparing a suspension comprising a pure culture of microorganisms and an aqueous solution comprising a gelling agent and redox purple, under conditions such that said suspension remains ungelled;
• c) introducing said suspension into said wells of said testing device under conditions such that said suspension forms a gel matrix within said well, such that said microorganisms are within said gel matrix;
• and
• d) detecting the response of said microorganisms to said testing substrate.