On 9/1 in lab we went over the gram staining process as well as viewed the results under a microscope. There were no complications other than some imperfections on the microscope slide. A large pink oval appeared when viewing. We also observed Chad running his protein gel. These gels are ran vertically rather than the gels we have ran in the past that were done vertically. It took 30 minutes to let the gel bands separate before cracking off the plastic and letting it sit on the rocker over the weekend.  The most important tip Chad gave us was to make sure the gel did not fold on itself.
IMG-6303.JPG

Comments

Post a Comment

Popular posts from this blog

9/14 and 9/15 labs

Image
On 9/14 we did a gram stain on D. Rad. Unfortunately there were not enough cells and we did not heat fix long enough to see any result under the microscope. The cells began to wash away during the process. On 9/15 we decided to reattempt gram staining on P. fluorescens. This time we heat fixed even more so the cells did not wash away. The sample was a bit older coming from August, therefore the cells appeared as debris rather than clumps of cells.
Read more
Image
After about 3-4 weeks, we have ran 3 trials for each salt concentration. We have one set of data points so far and by Tuesday we will have all 3 trials figured out. The first round of data points all turned out good with no contamination. The process has been good overall and we have not ran into any major issues. In the beginning we had a few hiccups with contamination on our TGY plates but nothing since. We are excited to get the rest of our data points and run the statistics to put a poster together.
Read more
Image
On 9/28 we took 3 mL of TGY broth and placed it in a 15 mL flacon tube to prepare for inoculation on Saturday. Chad did a 4 way streak to begin growing the Gobi and allow to inoculate over night. On 9/29 we heated up the TGY broth that has agar to begin plating. The plates had some growth visible but no individual colonies. We did a gram stain on the culture that grow to look for grape like clusters of cells. Rebecca took a cluster of cells straight from the plates into a slide that has 5 micro-liters of TGY broth. The gram stain showed gobi was present but the heat fix caused the cells to turn black instead of purple.
Read more