Disease relevance of Cultural Characteristics

• Our isolates differed from the mammalian D. congolensis isolates in a number of cultural characteristics, including faster growth at 27 degrees C than at 37 degrees C, formation of two hemolysis zones around colonies on blood agar at 37 degrees C in the presence of 10% CO2, poor motility, and production of a distinctive odor [1].

High impact information on Cultural Characteristics

• Strains belonging to more than 100 different O:H serotypes have been associated with severe SLTEC disease in humans, of which only O157 strains (which are uncommon in Australia) have a distinguishable cultural characteristic (sorbitol negative) [2].
• The results obtained show that combining some cultural characteristics and biochemical tests, such as xanthine or hypoxanthine decomposition, growth in the presence of NaCl, lysozyme or novobiocin, and spore resistance over 100 degrees C provide a rough identification and selection of the genera of interest [3].
• Cultural characteristics were observed on MEA 2 % and Weitzman-Silva Hutner Agar [4].
• Comparison was by cultural characteristics, carbohydrate fermentation, enzyme profiles, and whole-cell protein polyacrylamide gel electrophoresis [5].
• The diagnosis was done by demonstration of hyphae in direct tissue smear examination in potassium hydroxide, histopathological examination and by cultural characteristics [6].

Associations of Cultural Characteristics with chemical compounds

• Although, during the experiments, the variants occurred as concerns the morphological and cultural characteristics, sugar fermentation, sugar and nitrate assimilation, germ tube formation did not undergo any modifications [7].
• The most useful cultural characteristics to dfferentiate the two species were growth on the sulphonamide containing MC-agar and 7.5% bile blood agar by Strep. milleri and production of hydrogen peroxide by Strep. mitior [8].
• The presence of special cultural characteristics (symplasmata and biconvex bodies) was also recorded and was found to be unrelated to formation of gas from glucose [9].
• Initially they were identified as group A streptococci on the basis of cultural characteristics, bacitracin sensitivity and fluorescent staining with an anti-group A conjugate [10].

References