According to National Weather Service historical Galveston October Weather data, on October 31, 1993, the high temperature did not exceed 49 degrees Fahrenheit, the lowest high measured in Galveston in the past 68 years.
The. test is mainly used to differentiate: 1) Oxidase positive Neisseria spp. from other gram-negative diplococci. 2) Oxidase positive Aeromonas hydrophila from Escherichia coli (gram-negative). 3) Oxidase positive Plesiomonas shigelloids from Shigella sonnei (gram-negative).Oxidase Test: A. Pseudomonas aeruginosa-Purple color indicates positive.he. test is mainly used to differentiate: 1) Oxidase positive Neisseria spp. from other gram-negative diplococci. 2) Oxidase positive Aeromonas hydrophila from Escherichia coli (gram-negative). 3) Oxidase positive Plesiomonas shigelloids from Shigella sonnei (gram-negative).
Subsequently when 100 isolates were tested for biochemical properties all were Gram negative, oxidase positive, negative for Vibrio-static agent O/129 (10 Î¼g), no growth in 0% NaCl concentration and all strains grew well in medium supplemented with 3â6% of NaCl.994). Presumptive tests included Gram staining, oxidase test, sensitivity to Vibrio-static agents O/129, utilization of different amino acids, growth at 0%, 3% and 6% NaCl, indole production, gelatinase production, Voges-Proskauer (VP test) and utilization of citrate, l-Arabinose and d-Glucosaminic acid.