Table 1. Diagnostic odorants and concentrations for functionally-identified glomeruli.
Error ratio: Incidence of mismatch between strongest-activated glomeruli and glomeruli with most correlated odorant response spectra (ORS) across 2 OBs, divided by all potential 2-OB comparisons. Median ORS corr.: Median ORS correlation coefficient (Pearson’s r) across all pairwise comparisons of ORS for the maximally-activated glomerulus in each responsive OB.
Mediolateral: Position of glomerulus centroid in the mediolateral axis, in units of µm from the midline (mean ± s.d.).
Anteroposterior: Position of glomerulus centroid in the anterior-posterior axis, in units of µm from the transverse sinus delineating the posterior margin of the OB (mean ± s.d.).
| # | Odorant | Est. conc. (M) | Error ratio | MedianORS corr. | Mediolateral (μm) | Anteroposterior (μm) |
|---|---|---|---|---|---|---|
| 1 | Benzaldehyde | 8E-11 | 0.00 | 1.00 | 1448.3±76.9 | 1298.4±82.4 |
| 2 | Elemicin | 5E-12 | 0.00 | 1.00 | 1011.6±80.9 | 753.2±126.7 |
| 3 | Vanillin | 3E-11 | 0.07 | 1.00 | 1249.6±54.8 | 1651±75.9 |
| 4 | Trans-2-dodecenal | 8E-10 | 0.00 | 1.00 | 514.9±54.2 | 2117.5±179.5 |
| 5 | Ethyl phenylacetate | 7E-11 | 0.00 | 1.00 | 884±50.5 | 1911.9±118.9 |
| Allyl phenylacetate | 1E-10 | 0.00 | 1.00 | |||
| 6 | Phenyl acetate | 3E-12 | 0.00 | 0.99 | 1375.6±93.3 | 1103.4±111.8 |
| Phenyl propionate | 1E-11 | 0.00 | 0.99 | |||
| 7 | Heptanoic acid | 7E-11 | 0.00 | 0.97 | 1026.6±60.5 | 2132.8±54.7 |
| Heptanal | 2E-9 | 0.00 | 0.95 | |||
| 8 | Methional | 1E-11 | 0.00 | 1.00 | 1680.2±99.6 | 1144.1±91.3 |
| 9 | 3-Mercaptohexyl acetate | 4E-12 | 0.00 | 0.97 | 1316.2±170.4 | 1244.5±67.3 |
| 10 | Trans-2-methyl-2-butenal | 1E-11 | 0.00 | 0.95 | 700.8±79.3 | 1103.7±113.9 |
| 2-Methyl-2-pentenal | 6E-11 | 0.00 | 0.95 | |||
| Methyl tiglate | 1E-11 | 0.00 | 0.95 | |||
| Ethyl tiglate | 2E-12 | 0.00 | 0.95 | |||
| Isopropyl tiglate | 2E-11 | 0.00 | 0.95 | |||
| Hexyl tiglate | 4E-10 | 0.00 | 0.95 | |||
| 11 | Isovaleric acid | 9E-12 | 0.00 | 0.92 | 973.5±32.4 | 1696.9±138 |
| Isovaleraldehyde | 4E-9 | 0.00 | 0.92 | |||
| 12 | 2'-Hydroxyacetophenone | 5E-12 | 0.00 | 0.86 | 1258.5±66.8 | 444±68.9 |
| 13 | Pyrazine | 2E-9 | 0.03 | 0.91 | 1618±54.2 | 1154.8±117.4 |
| 14 | 2-Isobutyl-3-methoxypyrazine | 3E-11 | 0.04 | 0.91 | 1007.4±93.9 | 503.6±80.8 |
| (R)-(+)-pulegone | 7E-13 | 0.04 | 0.91 | |||
| 15 | 4-(4-Hydroxyphenyl)–2-butanone | 4E-10 | 0.02 | 0.84 | 1202.5±92.4 | 1771.8±66.1 |
| 16 | 2,4,5-Trimethylthiazole | 5E-12 | 0.04 | 0.91 | 1242.6±128.3 | 460.8±106.6 |
| Ethyl-2,5-dihydro-4-methylthiazole | 3E-10 | 0.04 | 0.91 | |||
| 17 | 4-Methoxy-2-methyl-2-butanethiol | 3E-12 | 0.07 | 0.98 | 1633.1±116.8 | 853.6±107.1 |
| 2-Methyl-3-tetrahydrofuranthiol | 2E-10 | 0.07 | 0.98 | |||
| 18 | Isoeugenol | 8E-13 | 0.05 | 1.00 | 1162.9±86.7 | 746.2±105.4 |
| 19 | Menthone | 3E-10 | 0.05 | 0.85 | 1058.4±76.9 | 701.8±93.8 |
| 20 | 2-Hexanone | 1E-9 | 0.11 | 0.94 | 1372±98.3 | 945.6±105.8 |
| 21 | Acetophenone | 1E-11 | 0.02 | 0.83 | 1317.2±81.1 | 776.9±61.6 |
| 2-Methylacetophenone | 1E-12 | 0.02 | 0.83 | |||
| 22 | Methyl eugenol | 2E-12 | 0.13 | 0.90 | 1491.6±107 | 771.2±103.5 |
| 23 | 2-Methylbutyraldehyde | 8E-11 | 0.16 | 0.87 | 928.6±38.7 | 1497.3±126.9 |
| 2-Methylvaleraldehyde | 1E-10 | 0.16 | 0.87 | |||
| Methyl 2-methylbutyrate | 1E-10 | 0.16 | 0.87 | |||
| 24 | Hexanal | 7E-10 | 0.18 | 0.97 | 1047.7±63.7 | 1977.8±66 |
| 25 | Fenchol | 5E-10 | 0.16 | 0.98 | 1251±109.5 | 795.9±76.9 |
| 26 | 5-Methylfurfural | 5E-10 | 0.19 | 1.00 | 1465±67.1 | 1153.3±380.5 |