Table 1.
The fifteen electrophysiologically active compounds emitted by C. capitata males during their “calling” period. No chemical emissions were detected from females under the same experimental conditions (data not shown). Fourteen have already been reported in previous studies and tetrahydro-3,4-furandiol is a new compound. The last column indicates the numbers of males (M) and females (F) that showed a positive EAG response in a total of five replicates. The GC–EAG results are reported in Fig. 1.
| Compound | Label | Mol. formula | EAG response |
|---|---|---|---|
| 3-Methylbutan-1-ol | A | C5H12O | M4F4 |
| (RR)-2,3-Butanediol | B | C4H10O2 | M2F3 |
| (RS)-3-Methylpentan-2-one | C | C6H12O | M0F3 |
| (RS)-2-Methyl butyric acid | D | C5H10O2 | M0F2 |
| Dihydro-3-methyl-2-(3H)-furanone | Q | C5H8O2 | M3F4 |
| Tetrahydro-3,4-furandiol | S | C4H8O3 | M2F4 |
| Myrcene | E | C10H16 | M0F4 |
| Ethyl (E)-3-hexenoate | R | C8H14O2 | M4F4 |
| (Z)-Ocimene | F | C10H16 | M4F4 |
| (E)-Ocimene | G | C10H16 | M0F4 |
| (RS)-Linalool | H | C10H18O | M4F3 |
| Ethyl (E)-3-octenoate | O | C10H18O2 | M4F4 |
| Indole | I | C8H7N | M3F3 |
| Geranyl acetate | J | C12H20O2 | M5F4 |
| (E,E)-α-Farnesene | K | C15H24 | M2F3 |