Research Article

Efficacy of Eucalyptus cinerea as a Source of Bioactive Compounds for Curative Biocontrol of Crown Gall Caused by Agrobacterium tumefaciens Strain B6

Table 1

Chemical composition of essential oil isolated from E. cinerea leaves.

Compounds Area (%)KI

Monoterpene hydrocarbons
α-Pinene3.45941
Camphene15.13953
β-Pinene0.17978
3-Carene0.061004
α-Terpinene0.171015
γ-Terpinene0.111065
Terpinolene0.041088
Bornylene0.111232
Oxygenated monoterpenes
1,8-Cineole61.001033
Fenchol0.111117
trans-Pinocarveol2.981139
Pinocarvone0.921165
4-Terpineol1.021181
α-Terpineol4.771196
trans-Carveol0.361217
l-Bornyl acetate0.091285
exo-2-Hydroxycineole acetate0.221367
cis-Jasmone0.051398
Sesquiterpene hydrocarbons
α-Gurjunene0.011407
β-Caryophyllene0.021418
β-Gurjunene0.041440
Aromadendrene1.151456
β-Guaiene0.071459
β-Selinene0.041480
α-Selinene0.021488
Bicyclogermacrene0.141494
γ-Cadinene0.091512
Oxygenated sesquiterpenes
Epiglobulol0.691561
Spathulenol0.061576
Globulol4.061582
Viridiflorol1.411612
Hydrocarbons
6,7-Dimethyltetralin0.081393

Total identified compounds98.64%
Total monoterpene hydrocarbons19.24
Total oxygenated monoterpenes71.52
Total sesquiterpene hydrocarbons1.58
Total oxygenated sesquiterpenes6.22

Identification of components based on GC-MS Wiley 7.0 version library and National Institute of Standards and Technology 05 MS (NIST) library data. Percentages area. KI: Kovats indices on HP-5MS capillary column.