Phytoplankton sorting

From: John Mahoney (John.Mahoney@noaa.gov)
Date: Sun Jan 26 1997 - 15:49:34 EST


     Response to Sheila Agawin,
     
        I am a relative novice with our FACS Vantage but have successfully 
     sorted several phytoplankton species without difficulty.  These 
     included flagellates: Olisthodiscus luteus, Prorocentrum triestinum, 
     Gyrodinium cf aureolum, and a picoplankter, Aureococcus 
     anophagefferens.  All survived sorts except for A. anophagefferens 
     single cell ACDU isolation attempts.  I usually use glass 100mm test 
     tubes with slip on caps for collections but shorter plastic tubes have 
     worked also.  Tubes are filled about three quarters with media and 
     positioned high in the tube holder.  Cooling has not been a problem 
     because the unit is in an air conditioned room, and I use several 
     freezer packs in the collection compartment - in lieu of setting up 
     refrigeration.  Dave Small, Becton-Dickinson, recommends varying 
     (lowering) sheath pressure.  Good Luck!



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