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Microbiology Bacteria Lab results.docx - The bacteria used...

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The bacteria used in this lab wereEscherichia coliandSerratia marcescens.The transfer types were plate to plate, broth to broth, and slant to slant.Results from lab:1. Plate to plateThe methodused was the radiant streak method. The loop was first flamed. Then the lid of theagar plate with theSerratia marcescensculture was loosened as well as the lid of the agar platewith the nutrient agar medium. The loop was then spread across the agar plate withSerratiamarcescens. After collecting a loopful of theSerratia marcescensthe lid was closed. Then totransfer theSerratia marcescensto the nutrient agar plate the loop was spread in a small areanear the edge of the plate. The loop was applied lightly. From the edge of the area 7 or 8 straightstreaks was applied to the opposite side of the plate. This was a side-to-side motion. The loopwas flamed again and cooled. Then the cross streaks were done over the last streak starting nearthe initial area. This was a down then up motion, that angled or fanned out on the way up. The lidwas then closed, and the loop flamed to sterilize before being placed on the table. The lids of

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Term
Spring
Professor
MalloryLee
Tags
Escherichia coli, loop, Agar plate, Enterobacteriaceae

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