Griffitts:Conetainers

From OpenWetWare
Revision as of 12:37, 27 November 2007 by Matthew B. Crook (talk | contribs) (Created page)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search


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

  1. Soak the turface well a couple times so that it doesn’t dry out
    1. this may take 4 L of water
  2. Using flamed tweezers, dig a hole in the center of each of the cones designated for each plant species
  3. Remove parafilm from the germinated plants and add enough dH20 to the plates to allow all the plants to be kept moist
  4. Using another pair of flamed tweezers plant each plant into the desired cone
    1. Be sure not to force the plant into the turface, so that you don’t damage the root
  5. Using the tweezers that are covered with turface, compact the turface around the plant
    1. You want the top of the cotyledon showing and that is all
  6. Repeat steps 4 and 5 for all the plants on the row and then steps 2-5 for all remaining rows
  7. After you have planted the rack cover with Saran wrap and place on the dome for a day
  8. 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

  1. Grow up all your bacterial strains to singles
    1. This takes 2-3 days
  2. From those singles patch out an ~1 cm square patch
  3. Fill a Falcon tube with 1 mL more of dH20 than the number of plants you will be inoculating with the same bacterial strain
  4. Put enough bacteria into the tube to make the solution slightly opaque
  5. Vortex
  6. Add 1 mL of the bacteria solution to each plant
    1. Be sure to dig the pipetter into the turface so that it doesn’t splash
    2. Make sure you keep track of where you are so you don’t inoculate the wrong plants)
  7. Repeat Steps 3-6 for all bacterial strains