Which of the following is incubated at temperature 40-44 degrees ?
Correct Answer: Pseudomonas aeruginosa
Description: Ans. is 'b' i.e., Pseudomonas aeruginosa "The optimum temperature for growth of pseudomonas aeruginosa is 37 degree and is able to grow at temperature as high as 42deg C" - Essentials of Microbiology Pseudomonas aeruginosa Morphology Gram negative bacilli Motile by polar flagellum Non capsulated but many strains have mucoid slim layer especially the organisms which are isolated from cystic fibrosis patient. Culture Obligate aerobe Colonies emit a distinctive, musty, mawkish, eahy or sweet grape-like odour or corn tocolike odour. Cetrimide agar is a selective media. Pseudomonas aeruginosa produces a numbers of pigments. The production of these pigments accounts for the colour of colonies. Pyocyanin is produced only by P.aeruginosa and it inhibits the growth of many other bacteria. Pyoverdin may be produced by many other species.
Category:
Microbiology
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