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Team:Imperial College London/Project/Arabidopsis/Protocols
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<h1>Seedling protocol</h1> | <h1>Seedling protocol</h1> | ||
| - | + | Overview : Bacteria is taken into the root plant will express GFP. At higher concentration of E.coli, GFP might be expressing more, however higher bacteria concentration might defect the plant cell.<br> | |
- 10 ml of GFP. coli or GFPyeast preparation at a cell density of 50 A600 units was then added into the 250 ml hydroponic culture.<br> | - 10 ml of GFP. coli or GFPyeast preparation at a cell density of 50 A600 units was then added into the 250 ml hydroponic culture.<br> | ||
- After an overnight incubation at room temperature, roots were washed with deionized water and analyzed by CLSM.<br> | - After an overnight incubation at room temperature, roots were washed with deionized water and analyzed by CLSM.<br> | ||
| - | - We can vary the concentration of E.coli by putting 0 (control), 5, 10, 20, and 40 ml of E.coli respectively | + | - We can vary the concentration of E.coli by putting 0 (control), 5, 10, 20, and 40 ml of E.coli respectively <br> |
- For analysis of Arabidopsis root section by CLSM, visually assessed roots regions showing high fluorescence are excised (5–10 mm long), washed and embedded in 3% agarose. <br> | - For analysis of Arabidopsis root section by CLSM, visually assessed roots regions showing high fluorescence are excised (5–10 mm long), washed and embedded in 3% agarose. <br> | ||
| - | - Hand-cut cross sections are transferred into curved slides, washed thoroughly with deionized water and analyzed by CLSM | + | - Hand-cut cross sections are transferred into curved slides, washed thoroughly with deionized water and analyzed by CLSM<br><br> |
| - | Some notes<br> | + | Some notes<br><br> |
- Any work involving E coli will take place in the teaching labs and the plant growth room will only be used to grow plants in individual, sealed flasks: E coli will be added to media in the teaching labs and media change will also take place in the teaching labs to ensure containment of the bacteria. <br> | - Any work involving E coli will take place in the teaching labs and the plant growth room will only be used to grow plants in individual, sealed flasks: E coli will be added to media in the teaching labs and media change will also take place in the teaching labs to ensure containment of the bacteria. <br> | ||
- To ensure that no E coli get into the water ways in the plant rooms, we will dispose of the bacteria in the teaching labs by filling them into flasks, applying vircon and autoclaving the solution <br> | - To ensure that no E coli get into the water ways in the plant rooms, we will dispose of the bacteria in the teaching labs by filling them into flasks, applying vircon and autoclaving the solution <br> | ||
Revision as of 23:09, 31 July 2011
Seedling protocol
- Weigh in appr. 50mg of arabidopsis seeds in eppendorf tube (one tube per 250 ml erlenmayer flask)- Wash with 500 µl 70% EtOH for appr. 4-5 (or 2x2) minutes per tube (mix well)
- Remove 70% EtOH and replace with 500µl 50% bleach (alternatively 5% Calcium hypochloride)
- Incubate for 20 minutes
- Wash several times with sterile ddH2O to remove bleach x3
- Vernalize seeds for 2-3 days
Prepare sterile medium
- Half strength Murashige salt (2.1g per liter ddH2O)
- Adjust pH to 5.7-5.8 using 2M KOH
- If required add 10g sucrose (e.g. 1% solution) – yes
- Add 1% agarose = 10g/litre if making phytogel
- Distribute into erlenmayer flasks (125 ml/250ml flask)
- Autoclave for at least 15 minutes
Some notes
- Growth conditions : flasks on a shaker at appr. 200 rpm. Either under long day or constant light conditions
- Grow seedlings for 5-6 days
Seedling protocol
Overview : Bacteria is taken into the root plant will express GFP. At higher concentration of E.coli, GFP might be expressing more, however higher bacteria concentration might defect the plant cell.- 10 ml of GFP. coli or GFPyeast preparation at a cell density of 50 A600 units was then added into the 250 ml hydroponic culture.
- After an overnight incubation at room temperature, roots were washed with deionized water and analyzed by CLSM.
- We can vary the concentration of E.coli by putting 0 (control), 5, 10, 20, and 40 ml of E.coli respectively
- For analysis of Arabidopsis root section by CLSM, visually assessed roots regions showing high fluorescence are excised (5–10 mm long), washed and embedded in 3% agarose.
- Hand-cut cross sections are transferred into curved slides, washed thoroughly with deionized water and analyzed by CLSM
Some notes
- Any work involving E coli will take place in the teaching labs and the plant growth room will only be used to grow plants in individual, sealed flasks: E coli will be added to media in the teaching labs and media change will also take place in the teaching labs to ensure containment of the bacteria.
- To ensure that no E coli get into the water ways in the plant rooms, we will dispose of the bacteria in the teaching labs by filling them into flasks, applying vircon and autoclaving the solution
