The National Onion Bacterial Strain Collection (NOBSC) is a repository of publicly available bacterial strains assembled as an objective of Specialty Crops Research Initiative award 2019-51181-30013, "Stop the Rot: Combating onion bacterial diseases with pathogenomics and enhanced management strategies," from the National Institute of Food and Agriculture, US Department of Agriculture (USDA). The collection is maintained at the University of Georgia.

The majority of NOBSC strains were isolated from onions as part of a U.S. survey conducted from 2020 to 2023 in eleven U.S. states (CA, CO, GA, ID, NM, NY, OR, PA, TX, UT, WA). The remainder of the NOBSC strains were donated to the project.

The NOBSC collection focuses on six genera with important onion pathogens: Burkholderia, Enterobacter, Pantoea, Pseudomonas, Rahnella and Xanthomonas, but also includes strains of over 130 other genera isolated from onions.

NOBSC strains are publicly available and are provided at a cost recovery rate. Requestors will be invoiced per strain cost of $20 as well as FedEX shipping costs. We are able to process a maximum of 50 strains per week and individual requests are limited to 50 strains each. We are committed to processing strain requests in a timely fashion, but we retain the right to determine the order and timing of request processing. Requesters are responsible for arranging and providing appropriate permits for receipt of strains. Strains will be provided in the condition in which they were received.

This site is hosted by the Regional IPM Centers as supported by the USDA National Institute of Food and Agriculture through agreement 2022-70006-38002. Any opinions, findings, conclusions, or recommendations expressed in this strain collection and database are those of the author(s) and should not be construed to represent any official USDA or U.S. government determination or policy.