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. 2020 Oct 7;11:560791. doi: 10.3389/fmicb.2020.560791

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Copyright © 2020 Shen, Wen, Liao, Lin, Zhang, Chen, Wang and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Detection limit test results. (A) LP-LAMP method for the detection of plasmid concentrations. Diluted Salmonella Pullorum plasmid was used at the following concentrations: (a) 2.1 × 10⁶ copies/μL, (b) 2.1 × 10⁵ copies/μL, (c) 2.1 × 10⁴ copies/μL, (d) 2100 copies/μL, (e) 210 copies/μL, (f) 21 copies/μL, (g) 2.1 copies/μL. (h) Negative control. (B) LP-LAMP method for the detection of genomic DNA, diluted Salmonella Pullorum genomic DNA was used at the following concentrations: (a) 49.2 ng/μL, (b) 4.92 ng/μL, (c) 492 pg/μL, (d) 49.2 pg/μL, (e) 4.92 pg/μL, (f) 492 fg/μL, (g) 49.2 fg/μL, (h) 4.92 fg/μL, (i) 0.49 2fg/μL, (j) Negative control.