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5. Storage and Distribution

Collections are cleaned, tested, and processed at a number of different facilities.  Since 2003, BLM collecting teams have their seed cleaned by the U.S. Department of Agriculture, Forest Service Bend Seed Extractory while most non-federal partners clean their own seed.

Long-term and working collection needs are being met by the U.S. Department of Agriculture, Agricultural Research Service.  The National Center for Genetic Resources Preservation (NCGRP) in Fort Collins, Colorado is managing long-term collections, and the Western Regional Plant Introduction Station (WRPIS) in Pullman, WA is maintaining both long-term and working collections for distribution to researchers working on native plant materials development related topics.  

WRPIS serves as the processing center for Seeds of Success collections entering the National Plant Germplasm System (NPGS).  WRPIS has partnered with the Bureau of Land Management, Kew Millennium Seed Bank, and other Plant Conservation Alliance members for collection and conservation of native plant species in the United States.  Although MSB Phase 1 has been completed, germplasm collection continues under the SOS program.  WRPIS receives a portion, typically 10,000 seed, from each SOS collection cleaned at the USDA Forest Service Bend Seed Extractory.

Accessions are sub-divided for -20°C back-up storage at the WRPIS in Pullman and the NCGRP in Fort Collins (Table 1). If seed quantity is sufficient, a distribution component is included in the 4°C working collection as outlined below.

Table 1.  Seeds of Success (SOS) germplasm proportioning for long-term back-up and working collection samples.

SOS accession seed quantity

Ratio to long-term
storage at NCGRP -20°C

Ratio to long-term storage at WRPIS -20°C

Ratio to working collection 4°C

<6,000

½

½

0

6,000 - 7,500

2/5

2/5

1/5

7,500 - 30,000

1/3

1/3

1/3

30,000+

2/5

2/5

1/5


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http://www.nps.gov/plants/sos/protocol/5.htm
Last Updated: 15-Apr-2011