Plasmodium falciparum Welch (ATCC® 30930)

Strain Designations: FCR-1/FVO  /  Depositor: W Trager  /  Biosafety Level: 2

Permits and Restrictions

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Strain Designations FCR-1/FVO
Emerging infectious disease research
Vector-borne research
Biosafety Level 2

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Isolation Adult human male, Vietnam, 1966 (?)
Product Format frozen
Storage Conditions Frozen Cultures:
-70°C for 1 week; liquid N2 vapor for long term storage

Freeze-dried Cultures:

Live Cultures:
See Protocols section for handling information
Type Strain no
Antibiotic Resistance
Continuous culture
Medium ATCC® Medium 2196: Malaria medium, complete
Growth Conditions
Temperature: 37°C
Culture System: In vitro culture in human erythrocytes
Cryopreservation Harvest and Preservation
Only young cells (rings) can be frozen in glycerolyte medium** because their membranes are more robust.
  1. Centrifuge ring-stage culture for 5 mins. at 1000 x g in 50 ml centrifuge tube.
  2. Aspirate supernatant using sterile Pasteur pipet.
  3. Resuspend pellet gently in remaining supernatant.
  4. Slowly add 5 volumes of glycerolyte medium to 3 volumes pellet dropwise via a syringe as follows:
    1. Add the first volume of glycerolyte and allow the tube to stand for 5 mins. at room temperature.
    2. Add the remaining 4 volumes of glycerolyte and gently agitate.
  1. Aliquot mixture into Nunc screw-capped freezing vials and place in a Nalgene 1°C cooling apparatus. Place the apparatus at -80°C overnight and then plunge ampules into liquid nitrogen.  (The cooling rate in this apparatus is approximately -1°C/min.).
  2. Plunge vials into liquid nitrogen (-196°C) the next day and store in liquid nitrogen or liquid nitrogen vapor.       
Name of Depositor W Trager
Chain of Custody
ATCC <-- W Trager <-- Aotus trivirgatus (1976) <-- W.A. Siddiqui <-- Q.M. Griman/M.J. Meagher

Jensen JB, Trager W. Plasmodium falciparum in culture: establishment of additional strains. Am. J. Trop. Med. Hyg. 27: 743-746, 1978. PubMed: 356635

Trager W, Jensen JB. Human malaria parasites in continuous culture. Science 193: 673-675, 1976. PubMed: 781840

Jensen JB, Trager W. Plasmodium falciparum in culture: use of outdated erthrocytes and description of the candle jar method. J. Parasitol. 63: 883-886, 1977. PubMed: 335035

Notice: Necessary PermitsPermits

These permits may be required for shipping this product:

  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.
Basic Documentation