Colorimetric Detection of Class A Soybean Saponins by G-Quadruplex-Based Hybridization Chain Reaction

Figure 3

Colorimetric detection results for soybean GmSg-1^a/GmSg-1^b genes. Photograph of HCR assay solutions containing hemin (1.2 μM), Triton X-100 (0.002%), ABTS (3.8 μM), H₂O₂ (1.5 mM), and target genes GmSg-1^a and GmSg-1^b collected from different soybean cultivars. Tubes 1, 7: Wuhei. Tubes 2, 8: Jinda 73. Tubes 3, 9: Jinyi 30. Tubes 4, 10: Jinke 4. Tubes 5, 11: WS 285. Tubes 6, 12: Jinda 47.