The nitrate reductase test is a test to differentiate between bacteria based on their ability or inability to reduce nitrate (NO3−) to nitrite (NO2−) using...

Nitrate reductases are molybdoenzymes that reduce nitrate (NO− 3) to nitrite (NO− 2). This reaction is critical for the production of protein in most...

with methyl groups. N,N-Dimethyl-1-naphthylamine is used in the nitrate reductase test to form a precipitate of a red azo dye by reacting with a nitrite-sulfanilic...

ferment. Biochemical tests indicate this microorganism also carries out a weakly positive reaction to the nitrate reductase test. It is positive for urease...

microscope. It is positive by the oxidase test and catalase test, but negative by the nitrate reductase test. It is alpha-hemolytic and requires oxygen...

reducing eutrophication. Denitrification can be determined via a nitrate reductase test. Dissimilatory sulfate reduction is a relatively energetically poor...

Nitrate is a polyatomic ion with the chemical formula NO− 3. Salts containing this ion are called nitrates. Nitrates are common components of fertilizers...

enzyme (NADH-cytochrome b5 reductase) in their red blood cells. This results in a major risk of methemoglobinemia caused by nitrates ingested in drinking water...

catalase test, the oxidase test, and the indole test. It is negative by the urease test. In general, it is negative by the nitrate reductase test, although...

The bacteria doesn't produce CO2 for the Oxidase test. The Nitrate reductase test results in Nitrate not reducing to Nitrite, so it reduces to something...

is nitrate-reductase negative and pyrrolidonyl-arylamidase negative, while S. saprophyticus bovis has colony diameter of < 5mm, nitrate-reductase positive...

bacteria. The sources of nitrate can include fertilizers used in agricultural lands, waste dumps or pit latrines. For example, nitrate levels are subject to...

after its discoverer Louis Dienes. The micro-organism tests: Indole-negative and nitrate reductase-positive (no gas bubbles produced) Methyl red-positive...

generate nitric oxide through the nitrate-nitrite-nitric oxide pathway, the reduction of nitrate to nitrite (by nitrate reductase, a bacterial enzyme) occurs...

the periplasmic nitrate reductase gene could not function in the electron transport chain, as it lacked the necessary quinol reductase subunit. To resolve...

storage, and testing of solid rocket motors, contamination of perchlorate has been focused as a side effect of the use of natural nitrate fertilizer and...

which allows it to consume a large variety of carbon substrates, reduce nitrates, and even fix nitrogen from the atmosphere under nitrogen-limiting and...

anaerobes which can survive in the absence of oxygen. Cultured Bacillus species test positive for the enzyme catalase if oxygen has been used or is present. Bacillus...

NADH:ubiquinone oxidoreductase (complex I), Coenzyme Q – cytochrome c reductase (complex III), and cytochrome c oxidase (complex IV). Complex I is the...

just one copy of their chromosome and likely have increased DNA damage. To test whether transformation is an adaptive function for B. subtilis to repair...

chlorosis. For example, iron is used in the active site of glutamyl-tRNA reductase, an enzyme needed for the formation of 5-Aminolevulinic acid which is...

Methyl Red + Voges-Proskauer – Indole + H2S Production – Urease V Nitrate reductase + β-Galactosidase – Hydrolysis of Gelatin + Aesculin V Casein V Tween...

Burkholderia because it is oxidase negative B. gladioli is indole negative, nitrate negative, and lysine decarboxylation negative. On the molecular level,...

Methyl Red + Voges-Proskauer – Indole + H2S Production – Urease + Nitrate reductase + β-Galactosidase – Hydrolysis of Gelatin – Aesculin – Casein – Tween...

Methyl Red – Voges-Proskauer + Indole – H2S Production + Urease + Nitrate reductase + β-Galactosidase – Hydrolysis of Gelatin + Aesculin + Casein + Tween...

Methyl Red + Voges-Proskauer – Indole – H2S Production – Urease – Nitrate reductase – β-Galactosidase + Hydrolysis of Gelatin – Aesculin + Casein – Tween...

then incorporated into biomass. The synthesis of both nitrite reductase and nitrate reductase is inhibited by oxygen, which is consistent with the status...

NADPH-dependent reductase enzymes, which have been characterized in multiple plant species. These plant species all contain two types of the reductase enzymes...

coagulase, clumping factor, fibrinolysin, thermostable nuclease, tellurite reductase, gelatinase, protease, urease, arginine dihydrolase, alpha- or beta-haemeolysins...

Methyl Red – Voges-Proskauer – Indole – H2S Production + Urease + Nitrate reductase – β-Galactosidase + Hydrolysis of Gelatin – Aesculin + Casein + Tween...