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Reaction of Bacillus Megaterium in a catalase test?
Most Bacillus species are Catalase positive.
Name a nonfermentative test in which gas production indicates a positive test result?
Nitrate Reduction Test
What is the result of catalase test for streptomyces?
positive
Test used for the identification of Staphylococcus aureus?
staph. aureus test positive for catalase test and coagulase test consecutively
Why is catalase test performed on enterococcus faecium?
To differentiate it from other gram positive, bacteria that are coccus.
Reaction of Bacillus Megaterium in a catalase test?
Most Bacillus species are Catalase positive.
What two groups of bacteria can be differentiated with the catalase test?
The morphologically similar Enterococcus (catalase negative) and Staphylococcus (catalase positive) can be differentiated using the catalase test.
Name a nonfermentative test in which gas production indicates a positive test result?
Nitrate Reduction Test
Why salmonella typhi is catalase positive?
it should test + for catalase but Salmonella isolates are moderate catalase reactors.
What is the result of catalase test for streptomyces?
positive
Why is it avisable to perform test of unknown catalase positive organism along with the organism you are testing?
you need to test both the experiment-organism and an organism which you already know is catalase-positive, in the same environment in order to compare the results and determine if your experiment-organism is catalase-positive. - See more at: http://www.chacha.com/question/why-is-it-advisable-to-perform-a-catalase-test-on-a-known-catalase%26%2345%3Bpositive-organism-along-with-the-organism-you-are-testing#sthash.oChX8ZqW.dpuf
Does Ecoli produce catalase?
E. coli is catalyse test positive.
Catalase test useful for differentiation of staph?
The main criterion for differentiation between Staphylococcus and Streptococcus genera is the catalase test. Staphylococci are catalase positive whereas Streptococci are Catalase negative. Catalase is an enzyme used by bacteria to induce the reaction of reduction of hydrogen peroxide into water and oxygen.
What is catalase test?
Catalse Test Catalase (also known as peroxidase) is an enzyme that catalyses the breakdown of hydrogen peroxide to oxygen and water. Most higher organisms produce catalase, but in bacteriology this test is usually used to differentiate staphylococci (Catalase positive) from streptococci (Catalase negative). Chemical equation for the breakdown of hydrogen peroxide:2H2O2 → 2H2O + O2 In this test a drop of hydrogen peroxide is emulsified with the bacterial growth, if the organism is catalase positive active bubbling is seen (formation of oxygen) In catalase negative reactions no active bubbling is seen
Test used for the identification of Staphylococcus aureus?
staph. aureus test positive for catalase test and coagulase test consecutively
Why will a false-positive catalase test result if the organisms are tested on a medium containing blood?
Because catalase is found in red blood cells.
Why is catalase test performed on enterococcus faecium?
To differentiate it from other gram positive, bacteria that are coccus.
