## 2 Results and Discussion
### VOC Metabolomes of the Chassis and Mutant Strains
**} & \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**Retention Time (min)**} & \multirow{2}{*}{**Formula**} & \multirow{2}{*}{**Molecular Weight**} & \multicolumn{2}{c}{**Absolute Amount**} & \\ \cline{5-8}  & & & & & \(\Delta\)_Talig4:meo_ & \(\Delta\)_Talig4:meo_ & \(\Delta\)_Talig4:meo_ \\ \hline \multirow{5}{*}{13} & 1H-Cyclopenta[1,3] & \multirow{5}{*}{19.370} & \multirow{5}{*}{C15H24} & \multirow{5}{*}{204.35} & \multirow{5}{*}{*} & \multirow{5}{*}{\(1.89\times 10^{5}\)} & \multirow{5}{*}{*} \\  & cyclopropa[1,2]benzene, & & & & & \\  & octabydro-7-methyl-3- & & & & & \\  & methylene-4- (1-methylethyl)-, & & & & & \\  & 3 aS- & & & & & \\  & (3a.alpha.,3b.beta.4.beta.7 & & & & & \\ \hline
14 & \(\gamma\)-Ampraphene & 19.380 & C15H24 & 204.35 & \(2.72\times 10^{5}\) & * & * \\ \hline \multirow{5}{*}{15} & (1R,4R,5S)-1.8-Dimethyl-4- & \multirow{5}{*}{19.434} & \multirow{5}{*}{C15H24} & \multirow{5}{*}{204.35} & \multirow{5}{*}{\(1.03\times 10^{6}\)} & \multirow{5}{*}{\(6.84\times 10^{1}\)} & \multirow{5}{*}{*} \\  & 7-ene & & & & & \\ \hline \multirow{5}{*}{16} & (1R,5S)-1.8-Dimethyl-4- & \multirow{5}{*}{20.017} & \multirow{5}{*}{C15H24} & \multirow{5}{*}{204.35} & \multirow{5}{*}{\(7.97\times 10^{5}\)} & \multirow{5}{*}{\(2.84\times 10^{5}\)} & \\  & (propan-2- & & & & & \\ ylidene)spiro[4.5]dec-7-ene & & & & & & \\ \hline \multirow{5}{*}{17} & Bicyclo[2.2.1]heptane, & \multirow{5}{*}{20.320} & \multirow{5}{*}{C12H20} & \multirow{5}{*}{164.29} & \multirow{5}{*}{\(2.02\times 10^{5}\)} & \multirow{5}{*}{\(1.98\times 10^{5}\)} & \\  & 2-(1,1-dimethyl)-2-propenyl)- & & & & & \\ \hline \multirow{5}{*}{18} & cis-Calamenene & \multirow{5}{*}{20.340} & \multirow{5}{*}{C15H22} & \multirow{5}{*}{202.33} & \multirow{5}{*}{\(3.84\times 10^{5}\)} & \multirow{5}{*}{\(7.89\times 10^{1}\)} & \\  & Tricyclo[6.3.0(1,5)]undlec-2- & & & & & \\ \cline{1-1}  & en-4-one, 5,9-dimethyl- & & & & & \\ \hline \multirow{2}{*}{20} & Biphenylene, 1,2,3,6,7,8,8a,8b- & \multirow{2}{*}{21.290} & \multirow{2}{*}{C14H20} & \multirow{2}{*}{188.31} & \multirow{2}{*}{\(1.13\times 10^{5}\)} & \multirow{2}{*}{\(6.81\times 10^{4}\)} & \multirow{2}{*}{\(2.52\times 10^{5}\)} \\  & octahydro-4,5-dimethyl- & & & & & \\ \hline \multirow{5}{*}{21} & 1H-Benzocyclohepten-7-ol, & \multirow{5}{*}{22.305} & \multirow{5}{*}{C15H26O} & \multirow{5}{*}{222.37} & \multirow{5}{*}{\(5.09\times 10^{5}\)} & \multirow{5}{*}{\(2.56\times 10^{5}\)} & \multirow{5}{*}{\(6.28\times 10^{5}\)} \\  & 1,1,4a,7-tetramethyl-, cis- & & & & & \\ \hline \multirow{2}{*}{22} & \(\beta\)-Ccimene & \multirow{2}{*}{22.421} & \multirow{2}{*}{C10H16} & \multirow{2}{*}{136.26} & \multirow{2}{*}{\(3.31\times 10^{5}\)} & \multirow{2}{*}{\(1.99\times 10^{5}\)} & \\ \cline{1-1}  & 23 & \(\alpha\)-Bisabolol & \multirow{2}{*}{22.454} & \multirow{2}{*}{C15H26O} & \multirow{2}{*}{222.37} & \multirow{2}{*}{\(1.67\times 10^{5}\)} & \multirow{2}{*}{\(5.05\times 10^{4}\)} & \\ \cline{1-1}  & Spiro[4.5]dec-6-en-8-one, 1,7- & \multirow{5}{*}{22.635} & \multirow{5}{*}{C15H24O} & \multirow{5}{*}{220.35} & \multirow{5}{*}{\(6.10\times 10^{5}\)} & \multirow{5}{*}{\(9.60\times 10^{4}\)} & \\ \cline{1-1}  & dimethyl-4-(1-methylethyl)- & & & & & \\ \hline \multirow{2}{*}{25} & Di-epi-1,10-cubenol & \multirow{2}{*}{23.477} & \multirow{2}{*}{C15H26O} & \multirow{2}{*}{222.37} & \multirow{2}{*}{\(4.96\times 10^{5}\)} & \multirow{2}{*}{\(3.23\times 10^{4}\)} & \\ \cline{1-1}  & Tricyclo[5.4.0.