Relationship to class instruction: biol&260 lab report due on: _____ material and methods cultures on bhi medium or tsa gram + bacillus cereus gram serratia marcescens. Micro paper on unknown bacteria micro unknown lab report microbiology unknown lab report growing importance of serratia marcescens. Identification of two unknown species of bacteria the bacteria used in this unknown lab are mesophiles, with an optimal temperature range of 25o to 45o c. Choose from 500 different sets of microbiology lab identification unknowns flashcards on quizlet quadrant streak with unknown bacteria serratia marcescens .
Serratia marcescens bacterial culture for microbiology laboratory studies contains motile rods that produce the reddish pigment prodigiosin incubation at higher temperatures suppresses pigment formation unless otherwise noted, cultures are shipped in 16 x 125 mm screw-cap culture tubes, tightly . There are other biochemical tests that help to identify serratia marcescens in the lab it is negative for the methyl red test due to their production of 2, 3 . Abstract serratia marcescens, a gram-negative, rod-shaped, facultative anaerobe (fig 1), is ubiquitous in water, soil, and natural settingsit is easily grown in the lab and may serve as an ideal model for adaptation studies because of the natural color variation of s marcescens (gillen 2008).
The identification of bacteria #1 was very easy since there are few organisms which have a red growth, and serratia marcescens is the only one that is on our unknowns list when the gram stain was inconclusive for this bacterium, it was sensible to use other tests to positively identify it. Serratia marcescens in lab are usually grown on macconkey agar which allows the strand to be isolated with other non-lactose unknown bacteria final lab reportdocx. Example of a microbiology unknown lab report by taylor autry introduction in this paper i will discuss the processes of how i came to find my two unknown bacteria. Overview of biochemical tests used to identify bacteria in microbiology laboratory - microbeonline microbiology unknown lab report examples dissertation . Unknown #1 was found in a nearby pond that was created by an earthquake unknown lab report salmonella paratyphi a salmonella typhi serratia marcescens .
Serratia marcescens is a member of the genus serratia, which is a part of the family enterobacteriaceae currently 14 species of serratia are recognized within the genus, eight of which are associated with human infection ( 67 ). Identification of an unknown bacterium and writing up a report a standard part of nearly all lab courses in introductory microbiology is an activity some bacteria . For example, serratia marcescens forms bright red colonies and can be easily identified thanks to this pigmentation unfortunately, a lot of bacteria have very common colonies (round, flat and white or creamy white) and this test is not enough to identify with certainty a species. Here is an excellent example of a microbiology unknown lab paper to identify unknown bacteria in micro lab report example of unknown bacteria identification. Unknown lab report unknown number 110 example of a microbiology unknown lab paper | unknown bacteria lab what is chronic kidney disease by jenna schneider.
Imagine finding red spots on your communion bread or wafers what might you conclude for centuries, the church concluded that these red spots were the blood of christ however, we now know that these red spots were not blood, but colonies of serratia marcescens bacteria figure 2 gram negative . How to write an unknown lab report in microbiology been learned thus far for identifying bacteria have been applied to this unknown coli serratia marcescens. Microbiology unknown project - 2014 report for each of your unknown bacteria serratia marcescens shigella flexneri sporosarcina ureae. Start studying micro lab final- all unknown bacteria learn vocabulary, terms, and more with flashcards, games, and other study tools -serratia marcescens .
The unknown culture #31 was found to be serratia marcescens its striking feature was its production of red pigment observable on h 2 s test tubes a schema diagram of how i identified the unknown is at the end of this report. Report abuse transcript of unknown key serratia marcescens phe deaminase n/a negative serratia liquefaciens serratia marcescens glucose n/a positive vibrio . Microbiology unknown lab report kateryna petrakova introduction after gram staining test, it was obvious that the unknown bacteria was cocci, however such . Microbiology lab unknown #4 report : section 07 name: unknown #_4 netid: _r _ number of tests serratia marcescens, interested in unknown bacteria chemical .