Table 2.
Tentatively identified volatile organic compounds (VOCs) produced by endophytic bacteria isolated from seeds of B. oleracea
| Detected in treatment | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| # | Compound name | RT* | ELRI** | p‐value*** | Chemical family | PA | PSM | PSA | SR | PO | PSM + PSA |
| 1 | Cyclohexane | 3.36 | 718 | 1.70E−15 | Alkenes | X | X | X | X | X | X |
| 2 | 1‐pentanol | 4.60 | 753 | 2.60E−11 | Alcohols | — | — | X | X | — | X |
| 3 | dimethyl disulfide | 4.83 | 759 | 3.00E−05 | Sulfides | X | X | X | X | X | X |
| 4 | alpha‐pinene | 11.20 | 930 | 2.03E−19 | Terpenes | X | — | X | X | X | |
| 5 | dimethyl trisulfide | 12.60 | 963 | 1.44E−06 | Sulfides | X | X | X | X | X | X |
| 6 | 1‐undecene | 18.10 | 1,092 | 1.95E−04 | Alkenes | X | X | — | — | X | — |
| 7 | unknown terpene like compound | 29.83 | 1,409 | 2.12E−04 | ‐ | X | X | X | — | — | X |
| 8 | unknown compound | 35.80 | 1,600 | 1.61E−15 | ‐ | X | X | — | X | — | — |
| 9 | hexadecanoic acid | 40.70 | 1,948 | 2.12E−04 | Acids | — | — | X | — | — | X |
| Number of compounds (n) | 7 | 6 | 7 | 6 | 4 | 7 | |||||
Abbreviations: PA, Pantoea agglomeran; PSM, Pseudomonas marginalis; PSA, Pseudomonas azotoformans; SR, Stenotrophomas rhizophila; PSO, Pseudomonas orientalis; PSM + PSA, Pseudomonas marginalis + Pseudomonas azotoformans.
RT*, retention time, the RT value stated is the average retention time of three replicates.
ELRI**, experimental linear retention index value, the RI value stated is the calculated average of three replicates.
p‐value***, statistical significance (peak area and peak intensity).