Team:BCCS-Bristol/Calendar-Notebook/21 July 2008
From 2008.igem.org
OD measurement
The OD of both strains was measured over a day so that we would know whether the bacteria were in their log phase in any experiments requiring innoculation of bacteria.
A, B and C show 100, 500 and 200µl innoculations respectively.
Time (minutes) | OD600 (1.5 diluted) |
| |||||
MG1655 | MC1000 | ||||||
A | B | C | A | B | C | ||
0 | 0.0016 | 0.0042 | 0.017 | 0.0016 | 0.0044 | 0.0174 | |
60 | 0.008 | 0.013 | 0.073 | 0.006 | 0.017 | 0.068 | |
80 | 0.011 | 0.052 | 0.109 | 0.009 | 0.046 | 0.123 | |
100 | 0.019 | 0.059 | 0.142 | 0.017 | 0.067 | 0.167 | |
120 | 0.029 | 0.076 | 0.169 | 0.024 | 0.083 | 0.183 | |
140 | 0.039 | 0.095 | 0.213 | 0.039 | 0.144 | 0.226 | |
160 | 0.063 | 0.136 | 0.26 | 0.053 | 0.147 | 0.275 | |
180 | 0.074 | 0.166 | 0.276 | 0.069 | 0.186 | 0.298 | |
200 | 0.105 | 0.207 | 0.301 | 0.089 | 0.22 | 0.316 | |
220 | 0.134 | 0.25 | 0.355 | 0.116 | 0.268 | 0.331 | |
240 | 0.178 | 0.276 | 0.386 | 0.151 | 0.293 | 0.341 | |
260 | 0.233 | 0.329 | 0.419 | 0.198 | 0.325 | 0.372 | |
280 | 0.239 | 0.334 | 0.435 | 0.203 | 0.326 | 0.375 | |
300 | 0.263 | 0.363 | 0.473 | 0.238 | 0.34 | 0.388 | |
320 | 0.296 | 0.391 | 0.491 | 0.27 | 0.364 | 0.412 | |
340 | 0.319 | 0.425 | 0.511 | 0.29 | 0.378 | 0.429 | |
360 | 0.32 | 0.435 | 0.512 | 0.294 | 0.382 | 0.432 | |
380 | 0.392 | 0.542 | 0.514 | 0.311 | 0.434 | 0.438 | |
400 | 0.435 | 0.549 | 0.588 | 0.348 | 0.457 | 0.497 | |
420 | 0.47 | 0.52 | 0.487 | 0.382 | 0.462 | 0.504 | |
440 | 0.483 | 0.586 | 0.633 | 0.477 | 0.437 | 0.516 | |
460 | 0.498 | 0.482 | 0.629 | 0.411 | 0.484 | 0.517 | |
480 | 0.574 | 0.643 | 0.721 | 0.451 | 0.516 | 0.524 | |
500 | 0.607 | 0.66 | 0.73 | 0.455 | 0.514 | 0.515 | |
520 | 0.65 | 0.673 | 0.723 | 0.453 | 0.522 | 0.523 |
|}
Chemotaxis experiment for MG1655 showed no real difference btween the control (water) and the aspartate. may have been due to higher agar concentration caused by an unusually large water loss in autoclaving, causing high concentrations of agar.
Started on the transformation of bacteria with biobrick from paper, punched out hole and put in TE buffer (below) following protocol on igem sheet.
Chemotaxis experiment with 20% aspartate repeated.
DMSO stocks of master cultures made as back up in the -80oC freezer.