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Southern blot analysis of L. brevis strains GRL1046 and GRL1. Total DNA extracted from strains GRL1046 (lane1) and GRL1 (lane 2) was digested with EcoRI and hybridized with a 1,406-bp internal slpA fragment probe amplified with the primer pair p19 and p20. Values (in kilobase pairs) of the molecular size markers (SmartLadder) are indicated on the left.
