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The optimum pH for human catalase is approximately 7, [8] and has a fairly broad maximum: the rate of reaction does not change appreciably between pH 6.8 and 7.5. [9] The pH optimum for other catalases varies between 4 and 11 depending on the species. [ 10 ]
A. faecalis is a Gram-negative bacterium which appears rod-shaped and motile under a 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. A. faecalis can be grown at 37 °C, and forms colonies that lack pigmentation. [1]
L. mesenteroides does best in temperatures ranging between 10 °C to 30 °C, [2] [3] but has an optimum temperature of 30 °C. Additionally, it can survive in a pH range of 4.5-7.0, with an optimum of 5.5-6.5. [5] L. mesenteroides also has a doubling time of 0.6 h −1 under aerobic conditions. [2] [3]
Acinetobacter calcoaceticus is a bacterial species of the genus Acinetobacter. [1] It is a nonmotile, Gram-negative coccobacillus.It grows under aerobic conditions, is catalase positive and oxidase negative.
P. vulgaris can test positive or negative for citrate. All combine for a Biocode ID of 31406, (Biocode ID 31402, 31404, 31407 all resulting in P. vulgaris with asymptomatic results) for use in the Interpretation Guide/Computer Coding and Identification System. P. vulgaris can also test urease negative in solid media (such as in Enterotube), but ...
Klebsiella aerogenes, [2] previously known as Enterobacter aerogenes, is a Gram-negative, oxidase-negative, catalase-positive, citrate-positive, indole-negative, rod-shaped bacterium. [3] Capable of motility via peritrichous flagella, [ 4 ] it is approximately one to three microns in length.
Campylobacter upsaliensis is a catalase negative species that can be further differentiated from other Campylobacter species by its inability to produce hydrogen sulfide on triple sugar iron as well as a positive oxidase test. [2] Additionally it cannot hydrolyze hippurate like other species and is considered sensitive to nalidixic acid. [4]
Burkholderia cepacia complex Scientific classification Domain: Bacteria Phylum: Pseudomonadota Class: Betaproteobacteria Order: Burkholderiales Family: Burkholderiaceae Genus: Burkholderia Species complex: B. cepacia complex Burkholderia cepacia complex (BCC) is a species complex consisting of Burkholderia cepacia and at least 20 different biochemically similar species of Gram-negative ...