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The Open Collection
The Patent Culture Collection
Search The Online Catalog and Request Strains
Strain Distribution Policies
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 ARS Culture (NRRL) Collection 

Welcome to the ARS Culture Collection (also known as the NRRL Collection) website. The Collection is one of the largest public collections of microorganisms in the world, currently containing approximately 99,000 strains of actinomycetes, bacteria, molds, and yeasts. The collection is housed within the Bacterial Foodborne Pathogens and Mycology Research Unit at the National Center for Agricultural Utilization Research in Peoria, Illinois.

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This site provides public access to the strain collection through the searchable online catalog for many of the holdings of well characterized strains within the collection through an integrated shopping cart for strain requests. Each request is limited to 24 strains, the limit to a given laboratory for a given calender year and must conform to the ARS Culture Collection distribution policies. Patent strains must still be requested in writing from Mr. James Swezey. Please note that selections from each page of the search results must be added to the shopping cart before moving to a new page.  A concerted effort is being made to ensure that strains appearing in the literature are available in the online catalog, but if a strain of interest has an NRRL accession number  but is not found in the online catalog, please direct this inquiry to the Collection Manager, Mr. James Swezey.

Strains that  are pathogenic to plants or animal generally require APHIS permits for distribution within the US and these must be uploaded in digtial format during the strain selection process. International requests for these strains also still require either the appropriate national importation permit or documentation that no permit is needed, and these are to be uploaded during the request process.

The site also provides information on the deposit and distribution of strains maintained in the ARS Patent Culture Collection, which is historically the first collection for strains related to patent applications in the world. The holdings of the patent strains, except for those that also serve as type strains, are not searchable, but the website provides the protocol for obtaining patent strains that are released to the scientific public.  Inquiries regarding the ARS Patent Culture Collection should be directed to Mr. James Swezey who serves as the curator of that collection.


Updated 21-February2014
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