Components of tobacco root exudates

Peak area (%)

Molecular Formula

Control group

Pathogen of bacterial wilt

Pathogen of bacterial wilt + antagonist

Methylamine

C₇H₂₁N

8.9354 ± 0.29

9.1213 ± 0.26

9.5606 ± 0.25

Tyramine

C₈H₁₁NO

(-)

2.1331 ± 0.30

1.2131 ± 0.32

Silanamine

C₇H₁₈N₂

(-)

5.4464 ± 0.22

6.5480 ± 0.34

Bis(trimethylsilyl)carbodiimide

C₇H₁₈N₂

1.2014 ± 0.35

1.6521 ± 0.29

1.2091 ± 0.25

N-Methyltrifluoroacetamide

C₃H₄F₃NO

0.1541 ± 0.10

0.2514 ± 0.05

0.2618 ± 0.06

Hexanol

C₁₂H₂₈O

4.4790 ± 0.24

3.5823 ± 0.23

3.5856 ± 0.35

Ethylene glycol

C₈H₂₂O₂

1.6186 ± 0.22

1.6312 ± 0.32

1.4583 ± 0.23

Diethylene glycol

C₁₀H₂₆O₃

1.1490 ± 0.22

(-)

(-)

Phenylethyl alcohol

C₈H₁₀O

1.1589 ± 0.15

(-)

(-)

Glycerol

C₁₂H₃₂O₃

2.6808 ± 0.40

2.7021 ± 0.19

3.8914 ± 0.39

Thiodiglycol

C₄H₁₀O₂S

0.1238 ± 0.06

0.2156 ± 0.06

(-)

D-Pinitol

C₇H₁₄O₆

(-)

(-)

0.1423 ± 0.04

D-Mannitol

C₂₄H₆₂O₆

(-)

1.1671 ± 0.16

2.1651 ± 0.20

Myo-Inositol

C₆H₁₂O₆

(-)

0.5698 ± 0.14

0.5412 ± 0.11

Silanol

C₁₃H₁₄O

(-)

0.1296 ± 0.09

0.2315 ± 0.08

1-Butanol

C₄H₁₀O

(-)

2.5128 ± 0.39

(-)

2,3-Butanediol

C₁₀H₂₆O₂

(-)

0.7250 ± 0.11

0.5283 ± 0.02

1-Monopalmitin

C₁₉H₃₈O₄

(-)

1.3210 ± 0.21

1.1593 ± 0.23

Isopropyl alcohol

C₃H₈O

(-)

(-)

1.1452 ± 0.17

Triethylene glycol

C₈H₁₈O₄

2.1423 ± 0.17

(-)

(-)

Boric acid

BC₉H₂₇O₃

8.4826 ± 0.24

8.5092 ± 0.23

9.5069 ± 0.33

Oxalic acid

C₂H₂O

(-)

4.2156 ± 0.43

3.5623 ± 0.35

Propionic acid

C₃H₆O₂

(-)

3.5986 ± 0.38

(-)

Palmitic acid

C₁₉H₄₀O₂

(-)

1.1267 ± 0.22

3.1092 ± 0.37

Hydrocinnamic acid

C₉H₁₀O₂

(-)

0.0186 ± 0.02

0.8218 ± 0.19

Stearic acid

C₂₁H₄₄O₂

5.4667 ± 0.14

4.0571 ± 0.26

7.0821 ± 0.42

Isophthalic acid

C₈H₆O₄

(-)

2.5862 ± 0.24

(-)

Terephthalic acid

C₈H₆O₄

0.7792 ± 0.25

1.5281 ± 0.25

0.8589 ± 0.18

Myristic acid

C₁₄H₂₈O₂

(-)

0.5836 ± 0.15

(-)

Itaconic acid

C₅H₆O₄

(-)

0.0782 ± 0.02

0.1290 ± 0.04

Benzimidate hydrochloride

C₉H₁₂NC_lO

(-)

0.0576 ± 0.02

(-)

Sebacic acid

C₁₀H₁₈O₄

(-)

0.3276 ± 0.04

(-)

Lactic acid

C₉H₂₂O₃

7.1991 ± 0.29

5.3126 ± 0.24

6.4286 ± 0.29

Benzoic acid

C₇H₆O₂

1.5823 ± 0.23

3.8569 ± 0.43

1.2982 ± 0.28

Acetic acid

C₁₀H₁₂O₂

2.6790 ± 0.26

3.4087 ± 0.28

4.4589 ± 0.13