Team:Evry/Notebook/CellCharacterization/Antibiotic test
From 2014.igem.org
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Pseudovibrio coming from culture with antibiotics (part B on plates), are taken from antibiotics' range in M9 at Day2. | Pseudovibrio coming from culture with antibiotics (part B on plates), are taken from antibiotics' range in M9 at Day2. | ||
<li>Chloramphenicol | <li>Chloramphenicol | ||
- | + | ||
<li>Kanamycin | <li>Kanamycin | ||
- | + | No readable results | |
<li>Ampicilin | <li>Ampicilin | ||
- | + | No readable results | |
<li>Tetracyclin | <li>Tetracyclin | ||
- | + | No readable results | |
<li>Erythromycin | <li>Erythromycin | ||
- | + | No readable results | |
- | + | ||
- | + | ||
- | + | ||
</p> | </p> |
Revision as of 14:37, 25 August 2014
Preparation of antibiotic stocks
Antibiotic | Stock concentration | Protocol |
Kanamycin | 25 mg/mL | Weight 0.56g of Kanamycin powder, solubilization into 20mL of miliQ water. Vortex 5min and filtration with a 200nm filter. Stock : -20°C (aliquots of 1mL) |
Streptomycin | 100 mg/mL | Weight 1g of Streptomycin powder, solubilization into 20mL of miliQ water. Vortex 5min and filtration with a 200nm filter. Stock : -20°C (aliquots of 1mL) |
Amplicilin | 50 mg/mL | Weight 1g of Amplicilin powder, solubilization into 40mL of miliQ water. Vortex 5min and filtration with a 200nm filter. Stock : -20°C (aliquots of 1mL) |
Tetracyclin | 15 mg/mL | Weight 0.6g of Tetracyclin powder, solubilization into 20mL of ethanol 50%. Vortex 5min and filtration with a 200nm filter. Stock : -20°C and hiden from light(aliquots of 1mL) |
Chloramphenicol | 34 mg/mL | Weight 0.34g of Chloramphenicol powder, solubilization into 10mL of ethanol 100%. Vortex 5min and filtration with a 200nm filter. Stock : -20°C and hiden from light(aliquots of 1mL) |
08-16-2014
Tests of antibiotics' stocks
Six plates of LB agar were made. Five of them contained one of those antibiotics in the dilution 1:1000:- Chloramphénicol
- Kanamycin
- Erythromycin
- Ampicilin
- Tetracyclin
Survivability tests
Two plates of MB 1X and M9 1X were made and divised in two parts. Each plate was sowed with 5µL of a liquid MB 1X culture of Pseudovibrio denitrificans(dated 12th August) in a part and with 5µL of a liquid M9 1X culture Pseudovibrio denitrificans (dated 12th August) in the other part.Pre-cultures
Cultures in MB 1X and M9 1X of Pseudovibrio were passed by a 1/10 dilution and let incubate overnight at 30°C. New cultures of different E.Coli were also started from glycerol or plate and let incubated overnight at 37°C. From glycerol stocks:- Bl21
- Top10
- DH5a
- DH5a tranformed with pCB1C3
- Top10 transformed with pQexp
- DH5a pyr tranformed with pMK2
08-17-2014
Tests of antibiotics' stocks - Results
Plates | LB Agar only | LB+Cam | LB+Kan | LB+Amp | LB+Erm | LB+Tet |
E.coli | X | 0 | X | 0 | X | 0 |
Survivability tests - Results
liquid cultures/Plates | MB | M9 |
MB | ++++ | ++ |
M9 | ++ | + |
08-18-2014
Tests of antibiotics' stocks - Results(2)
Plates | LB Agar only | LB+Kan | LB+Erm (1:100) |
E.coli | X | 0 | 0 |
Launch of antibiotics's tests in liquid M9 1X
For each tested antibiotic we made the following range of concentrations:0 | 1:500 | 1:1000 | 1:50 000 | 1:100 000 |
/ | 0 | 1:500 | 1:1000 | 1:50 000 | 1:100 000 |
Medium+agar | 3mL | 3mL | 3mL | 3mL | 3mL |
Antibiotic | 0 | 6µL of stock | 3µL of stock | 6µL of stock diluted 1/100 | 3µL of stock diluted 1/100 |
Pre-culture | 300µL | 300µL | 300µL | 300µL | 300µL |
/ | Pseudo | Bl21 | DH5a | Top 10 | DH5a pyr+KanR | DH5a+CamR | Top 10+ErmR |
OD init | 0.02 | 0.795 | 0.873 | 0.693 | 0.408 | 0.687 | 0.319 |
Plates for antibiotics's tests
For each tested antibiotic we made the same range of concentrations than in liquid. We also made these range two time to have a replicate and we added a controle plate without antibiotic on which we showed all our tested bacteria. Plates will be checked during three days. We made these same ranges of tested antibiotic's concentrations for three media:- MB agar 1X
- MB agar 0.5X
- M9 agar 1X
/ | 0 | 1:500 | 1:1000 | 1:50 000 | 1:100 000 |
Medium+agar | 20mL | 20mL | 20mL | 20mL | 20mL |
Antibiotic | 0 | 40µL of stock | 20µL of stock | 40µL of stock diluted 1/100 | 20µL of stock diluted 1/100 |
08-19-2014
Antibiotics' tests in liquid M9 1X - Results Day1
- Chloramphenicol
- Kanamycin Because of technical problems, the tests on E.Coli+KanR are launched with a gap of few days.
- Ampicilin
- Tetracyclin
- Erythromycin
Launch of antibiotics' tests on plates
Plates are showed and organised like shown in the following picture, and showed with 1µL of each culture:A B C D Pseudovibrio denitrificans Pseudovribrio denitrificans* E. Coli E. Coli** 08-19-2014
Antibiotics' tests in liquid M9 1X - Results Day2
- Chloramphenicol
- Kanamycin
- Ampicilin
- Tetracyclin
- Erythromycin
Antibiotics' tests on MB 1X plates - Results Day1
Results of antibiotics' tests on plate are calculated as percentage of bacteria's growth by compared with the controle case. Pseudovibrio coming from culture with antibiotics (part B on plates), are taken from antibiotics' range in M9 at Day2. - Chloramphenicol
- Kanamycin
- Ampicilin
- Tetracyclin
- Erythromycin
Antibiotics' tests on MB 03.5X plates - Results Day1
Results of antibiotics' tests on plate are calculated as percentage of bacteria's growth by compared with the controle case. Pseudovibrio coming from culture with antibiotics (part B on plates), are taken from antibiotics' range in M9 at Day2. - Chloramphenicol
- Kanamycin
- Ampicilin
- Tetracyclin
- Erythromycin
Antibiotics' tests on M9 1X plates - Results Day1
Results of antibiotics' tests on plate are calculated as percentage of bacteria's growth by compared with the controle case. Pseudovibrio coming from culture with antibiotics (part B on plates), are taken from antibiotics' range in M9 at Day2. - Chloramphenicol
- Kanamycin No readable results
- Ampicilin No readable results
- Tetracyclin No readable results
- Erythromycin No readable results