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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