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. 2016 Feb 1;6:20224. doi: 10.1038/srep20224

Figure 2. 16s rDNA library of intentionally-contaminated B. marmarensis cultures demonstrates its resistance to competitors.

Figure 2

A 1% inoculation of B. marmarensis was grown in media contaminated by outdoor exposure to air or addition of moist mountain soil. Cultures were diluted into fresh, unsterilized media daily for 7 days. Controls were performed in sterile media with and without B. marmarensis, and at both pH setpoints. A sensitivity control with 24:1 Bh:Bm genomic DNA (4% Bm gDNA) was also performed. The 16s rDNA library was quantified on final day. B. marmarensis dominates the open-air systems, and greater dominance with harsher alkaline conditions when exposed to soil. Together, this demonstrates B. marmarensis’ potential to outgrow competitors in alkaline conditions.