Components of tobacco root exudates

Peak area (%)

Formula

Control group

Pathogen of black shank

Pathogen of black shank + antagonist

Methylamine

C₇H₂₁N

8.9354 ± 0.58

8.6354 ± 0.43

8.1213 ± 0.46

Tyramine

C₈H₁₁NO

(-)

2.0031 ± 0.36

1.6131 ± 0.30

Silanamine

C₇H₁₈N₂

(-)

4.3898 ± 0.27

5.3218 ± 0.33

Bis(trimethylsilyl)carbodiimide

C₇H₁₈N₂

1.2014 ± 0.22

1.1304 ± 0.34

1.9807 ± 0.42

N-Methyltrifluoroacetamide

C₃H₄F₃NO

0.1541 ± 0.16

1.3543 ± 0.31

0.3318 ± 0.19

Hexanol

C₁₂H₂₈O

4.4790 ± 0.42

3.5823 ± 0.52

4.5998 ± 0.35

Ethylene glycol

C₈H₂₂O₂

1.6186 ± 0.31

1.1563 ± 0.25

1.2380 ± 0.32

Diethylene glycol

C₁₀H₂₆O₃

1.1490 ± 0.43

(-)

(-)

Phenylethyl alcohol

C₈H₁₀O

1.1589 ± 0.44

(-)

(-)

Glycerol

C₁₂H₃₂O₃

2.6808 ± 0.68

2.0565 ± 0.41

1.9967 ± 0.11

Thiodiglycol

C₄H₁₀O₂S

0.1238 ± 0.08

0.1615 ± 0.11

(-)

D-Pinitol

C₇H₁₄O₆

(-)

(-)

0.1120 ± 0.04

D-Mannitol

C₂₄H₆₂O₆

(-)

1.6160 ± 0.28

2.0615 ± 0.33

Myo-Inositol

C₆H₁₂O₆

(-)

0.2298 ± 0.17

0.0982 ± 0.06

Silanol

C₁₃H₁₄O

(-)

0.2629 ± 0.14

0.3234 ± 0.08

1-Butanol

C₄H₁₀O

(-)

2.5342 ± 0.38

(-)

2,3-Butanediol

C₁₀H₂₆O₂

(-)

0.0830 ± 0.05

0.5429 ± 0.19

1-Monopalmitin

C₁₉H₃₈O₄

(-)

1.0321 ± 0.29

1.1421 ± 0.29

Isopropyl alcohol

C₃H₈O

(-)

(-)

1.0852 ± 0.27

Triethylene glycol

C₈H₁₈O₄

2.1423 ± 0.34

(-)

(-)

Boric acid

BC₉H₂₇O₃

8.4826 ± 0.31

8.5014 ± 0.37

9.5421 ± 0.25

Oxalic acid

C₂H₂O

(-)

4.6245 ± 0.53

3.5460 ± 0.54

Propionic acid

C₃H₆O₂

(-)

1.5436 ± 0.28

(-)

Oleic acid

C₂₁H₄₂O₂

(-)

0.0743 ± 0.04

0.0628 ± 0.05

Palmitic acid

C₁₉H₄₀O₂

(-)

1.2187 ± 0.23

3.0752 ± 0.29

Hydrocinnamic acid

C₉H₁₀O₂

(-)

0.0567 ± 0.04

0.1822 ± 0.14

Stearic acid

C₂₁H₄₄O₂

5.4667 ± 0.36

3.9579 ± 0.29

5.0162 ± 0.37

Isophthalic acid

C₈H₆O₄

(-)

2.5536 ± 0.30

(-)

Terephthalic acid

C₈H₆O₄

0.7792 ± 0.36

1.2501 ± 0.27

0.8705 ± 0.35

Myristic acid

C₁₄H₂₈O₂

(-)

1.5432 ± 0.29

(-)

ITACONIC ACID

C₅H₆O₄

(-)

0.1482 ± 0.10

1.1209 ± 0.30

Benzimidate hydrochloride

C₉H₁₂NC_lO

(-)

0.0942 ± 0.05

(-)

Sebacic Acid

C₁₀H₁₈O₄

(-)

0.8764 ± 0.24

(-)

Lactic Acid

C₉H₂₂O₃

7.1991 ± 0.42

3.2412 ± 0.26

2.4098 ± 0.26

Benzoic acid

C₇H₆O₂

1.5823 ± 0.34

2.2651 ± 0.34

1.0092 ± 0.15