Table 1. Retention index (RI) and peak areas for volatile organic compounds (VOC) extracted from 14-d-old cultures of the plant-growth-promoting fungi Phoma sp. (GS8-3), Ampelomyces sp. (F-a-3) and Cladosporium sp. (D-c-4) using SPME-based GC-MS analysis.
Peak areas (%) | ||||
Compounds | RI | Phoma sp. GS8-3 | Ampelomyces sp. F-a-3 | Cladosporium sp. D-c-4 |
2-Methyl-propanol | 9.4 | 3.0 | – | |
3-Methyl-butanol | 83.8 | 22.6 | – | |
4-Heptanone | – | 2.5 | – | |
2-Heptanone | 0.4 | – | – | |
2-Heptanol | 0.4 | – | – | |
3-Octanone | 986 | – | 1.1 | – |
m-Methyl-anisole | 1022 | – | 1.9 | – |
4-Methyl-phenol | 1080 | 3.3 | – | – |
m-Cresol | 1081 | – | 59.8 | – |
Methyl benzoate | 1095 | – | – | 100.0 |
Phenylethyl alcohol | 1116 | 2.8 | 8.6 | – |
Cubenene | 1376 | – | 0.6 | – |
Total | 100.0 | 100.0 | 100.0 |
Note: Compounds were identified by comparing the RI and mass spectra with data in the NIST database.