Planned maintenance

We must perform activities that will impact the ability to place orders on our website. Starting Friday, May 21, at 5:00 p.m. Eastern to Sunday, May 23, at 5:00 p.m. Eastern, you will not be able to order products on our website. You will still be able to browse atcc.org and access your account. We apologize for any inconvenience this work may cause.
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Living Stock Protists

The ATCC Protistology Collection is the only general service collection of taxonomically diverse living stock protists in the United States, and the only large service repository of parasitic protozoa in the world. Cultures are authenticated using morphological and molecular techniques.
Korotnevella monacantholepis

Amoebozoa

ATCC holdings include genera such as Entamoeba, Acanthamoeba, Hyperamoeba, Hartmannella, and Spongomonas.
Dunaliella tertiolecta

Archaeplastida

ATCC  holdings include genera such as Prototheca, Chlorella, Chlamydomonas, Polytoma, and Cephaleuros.
Tetrahymena elliotti

Chromalveolata

ATCC  holdings include genera such as Plasmodium, Toxoplasma, Tetrahymena, Paramecium, Adriamonas, and Goniomonas.
Trepomonas agilis

Excavata

ATCC  holdings include genera such as Crithidia, Leishmania, Trypanosoma, Leptomonas, Euglena, Naegleria, Trichomonas, and Giardia.
Monosiga gracilis

Opisthokonta

ATCC holdings include genera such as Sphaerothecum, Encephalitozoon, Nosema, and Salpingoeca.
Cercomonas longicauda

Rhizaria

ATCC holdings include genera such as Heteromita, Cercomonas, Thaumatomonas, and Biomyxa.