Griffitts:Conetainers
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Turface preparation
Note: For Best results do turface one week prior to desired planting day so that it has time to dry
- Get two large white tubs and fill them ½ full with Pro League turface
- Rinse the turface repeatedly until the water comes off clear
- Your goal is to remove the smaller particles
- Drain off all of the water and autoclave on a dry cycle for 60 minutes
- 30 min sterilize time, 30 min dry time
- Remove from autoclave and immediately cover with foil to prevent contamination
- Place sterile batting squares in the cones so that turface won't fall through
- Wipe down a funnel and a scoop with 70% ethanol
- Using the sterile funnel and scoop, fill each cone to the top with turface
- Compact the turface by lifting it and pounding it against the counter
- Fill each cone again until it is about 1 cm from the top of the cone
- It won’t compact much the second time, so be sure not to overfill
- Put on gloves and spray them with 70% ethanol
- Wipe off any extra turface not in the cones
- Cover rack with Saran wrap until you are ready to plant and place dome on it
Cone preparation
- Fill the sink up with water and place 200 cones into it
- Make sure that all the roots from previous experiments have been removed--this may require scrubbing each one with the brush
- When they are all clean add bleach until you can smell it easily
- Allow them to soak for one day
- After they are done soaking, place them in the freshly cleaned rack so that you can place the batting squares into the cones
Batting square preparation
- Cut the white batting into 200 squares (~1 square inch each)
- Soak them over night in a small tub with bleach
- Stuff them into the bottom of the {{Griffitts:Conetainers#Cone preparation|cones]] using sterile technique
Rack preparation
- Wipe down the rack well with 70% ethanol
- Using white tape, wrap it around the top of the rack so you can label each row
- Wipe down the cover with 70% ethanol
Planting
- Soak the turface well a couple times so that it doesn’t dry out
- this may take 4 L of water
- Using flamed tweezers, dig a hole in the center of each of the cones designated for each plant species
- Remove parafilm from the germinated plants and add enough dH20 to the plates to allow all the plants to be kept moist
- Using another pair of flamed tweezers plant each plant into the desired cone
- Be sure not to force the plant into the turface, so that you don’t damage the root
- Using the tweezers that are covered with turface, compact the turface around the plant
- You want the top of the cotyledon showing and that is all
- Repeat steps 4 and 5 for all the plants on the row and then steps 2-5 for all remaining rows
- After you have planted the rack cover with Saran wrap and place on the dome for a day
- On day two, when you are watering, remove Saran wrap and only use the dome from then on to cover them
Watering
Note: On average we set an experiment for 25 days
- During the first week, water every day with 1X SNM
- During the second week, water every other day with autoclaved dH20
- During the third week, water every other day with 1X SNM
- During the last ½ week, water every day (except the day before you want to record your results) with dH20
Inoculation
Note: Inoculation day is four days after planting, so you will want to make sure that you have steps 1 and 2 done by Day 4 of the experiment
- Grow up all your bacterial strains to singles
- This takes 2-3 days
- From those singles patch out an ~1 cm square patch
- Fill a Falcon tube with 1 mL more of dH20 than the number of plants you will be inoculating with the same bacterial strain
- Put enough bacteria into the tube to make the solution slightly opaque
- Vortex
- Add 1 mL of the bacteria solution to each plant
- Be sure to dig the pipetter into the turface so that it doesn’t splash
- Make sure you keep track of where you are so you don’t inoculate the wrong plants)
- Repeat Steps 3-6 for all bacterial strains