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Home Page: http://www.ars.usda.gov/ba/psi/ngrl
The Plant Exchange Office procures plant germplasm through international and domestic exchanges of plants and seeds, documents and assigns unique identifiers to incoming material and responds to foreign requests for germplasm maintained in the U.S. In addition, it prioritizes U.S germplasm needs, arranges for and participates in international and domestic plant explorations, and studies the natural history and in situ maintenance of crop plants and their progenitors. Databases are maintained and information summaries prepared on useful and potentially useful plants of the wor d.
The Germplasm Resources Information Network Database Management Unit (GRIN/DBMU) develops and administers the computerized database of information on all germplasm maintained in the National Plant Germplasm System. The GRIN/DBMU is filling a similar role for insect, microbial and animal germplasm collections.
The Plant Disease Research Unit, studies pathogens that infect economically important plant germplasm to help facilitate the safe introduction and exchange of plant germplasm.