Table 1. Amounts1 of volatile compounds identified by GC-FID/GC-MS analysis from the headspace of sweet pepper plants inoculated with Akanthomyces muscarius ARSEF 5128 or Beauveria bassiana ARSEF 3097, compared to non-inoculated plants.
Compound | KI2 | A. muscarius ARSEF 5128 | B. bassiana ARSEF 3097 | Non-inoculated | P value3 |
---|---|---|---|---|---|
β-pinene | 972 | 0.064 ± 0.014 b | 0.040 ± 0.006 ab | 0.026 ± 0.005 a | 0.010 |
Myrcene | 984 | 0.182 ± 0.035 | 0.206 ± 0.038 | 0.107 ± 0.018 | 0.142 |
(E)-ocimene | 1041 | 0.135 ± 0.019 | 0.557 ± 0.249 | 0.902 ± 0.653 | 0.706 |
Terpinolene | 1087 | 3.358 ± 0.369 b | 3.913 ± 1.052 b | 1.463 ± 0.328 a | 0.020 |
Indole | 1261 | 0.115 ± 0.027 b | 0.039 ± 0.004 a | 0.043 ± 0.017 a | 0.003 |
(E)-caryophyllene | 1434 | 0.323 ± 0.063 | 0.215 ± 0.058 | 0.202 ± 0.082 | 0.137 |
Heptadecane | 1699 | 0.637 ±0.119 | 0.544 ± 0.115 | 0.383 ± 0.093 | 0.206 |
Unknown14 | 1101 | 0.051 ± 0.012 | 0.032 ± 0.006 | 0.035 ± 0.009 | 0.418 |
Unknown24 | 1367 | 0.058 ± 0.017 | 0.031 ± 0.009 | 0.137 ± 0.127 | 0.204 |
Unknown34 | 1440 | 0.178 ± 0.024 | 0.144 ± 0.026 | 0.124 ± 0.034 | 0.160 |
Unknown44 | 1521 | 0.254 ± 0.040 | 0.407 ± 0.145 | 0.132 ± 0.034 | 0.119 |
1Average obtained from nine plants ± SEM (ng/h/g fresh plant weight).
2The KI (Kováts index) values were obtained on a non-polar HP-1 GC column.
3P values are from ANOVA (df = 2, α = 0.05) on log-transformed data. Different letters within each row indicate significant differences by Fisher`s LSD post hoc test.
4Unidentified terpene.