Table 1 Comparison of volatile compounds (mean ± SE; n = 6) emitted from plants infested with TLH (TLH), treated with laminarin (Lam), the combination of both treatments (Lam + TLH), and controls (C).

From: A Disease Resistance Elicitor Laminarin Enhances Tea Defense against a Piercing Herbivore Empoasca (Matsumurasca) onukii Matsuda

No

Compound

C

Lam

TLH

Lam + TLH

1

(Z)-3-hexenala

0.02 ± 0.01 b

ND

0.51 ± 0.11a

0.43 ± 0.06 a

2

Unknown 1

ND

ND

0.49 ± 0.08 a

0.78 ± 0.18 a

3

(E)-2-hexenalb

ND

0.11 ± 0.03 a

ND

0.20 ± 0.07 a

4

(Z)-3-hexenolb

ND

0.31 ± 0.08 c

0.90 ± 0.17 b

3.23 ± 0.40 a

5

Unknown 2

ND

ND

0.38 ± 0.10 a

0.47 ± 0.12 a

6

Unknown 3

0.10 ± 0.04 b

ND

0.43 ± 0.11 a

0.61 ± 0.17 a

7

Unknown 4

ND

0.03 ± 0.01 b

0.05 ± 0.01 b

0.86 ± 0.22 a

8

Unknown 5

ND

ND

0.06 ± 0.02a

0.11 ± 0. 03 a

9

(Z)-3-hexenyl acetatea

ND

0.73 ± 0.15 c

2.87 ± 0.61 b

5.62 ± 0.85 a

10

(Z)-β-ocimeneb

ND

0.33 ± 0.08 b

0.55 ± 0.13 b

1.22 ± 0.28 a

11

Benzyl alcoholc

ND

ND

0.15 ± 0.04 a

0.22 ± 0.05 a

12

(E)-β-ocimeneb

ND

0.25 ± 0.06 c

1.16 ± 0.22 b

6.76 ± 1.02 a

13

Linaloold

0.11 ± 0.03 d

0.49 ± 0.09 c

1.37 ± 0.38 b

2.88 ± 0.61 a

14

Phenylethyl alcohold + DMNTe

ND

ND

3.63 ± 0.52 a

4.35 ± 0.82 a

15

Unknown 6

ND

ND

0.13 ± 0.05 a

0.20 ± 0.08 a

16

Benzyl nitriled

ND

ND

0.35 ± 0.08 a

0.41 ± 0.07 a

17

(Z)-3-hexenyl butyratea

ND

0.53 ± 0.12 a

ND

0.72 ± 0.16 a

18

(E)-2-hexenyl butyratea

ND

ND

0.51 ± 0.13 a

0.88 ± 0.19 a

19

Methyl salicylatea

ND

ND

0.22 ± 0.05 a

0.31 ± 0.08 a

20

(Z)-3-hexenyl-2-methyl butyratef

ND

ND

0.25 ± 0.07 a

0.35 ± 0.09 a

21

Unknown 7

ND

ND

0.26 ± 0.06 a

0.32 ± 0.07 a

22

Indolef

ND

0.28 ± 0.07 c

1.55 ± 0.29 b

2.62 ± 0.39 a

23

Phenyl ethane (1-nitro-2-)g

ND

ND

0.31 ± 0.07 a

0.41 ± 0.09 a

24

(Z)-3-hexenyl hexanoatef

ND

ND

0.60 ± 0.18 a

0.39 ± 0.12 a

25

Unknown 8

ND

ND

0.93 ± 0.30 a

1.11 ± 0.25 a

26

(E)-caryophyllenec

0.03 ± 0.01 c

0.16 ± 0.03 bc

0.28 ± 0.06 b

0.59 ± 0.17 a

27

(E,E)-α-farneseneh

ND

0.36 ± 0.07 b

0.79 ± 0.17 b

2.36 ± 0.53 a

28

Unknown 9

ND

ND

0.09 ± 0.03 a

0.11 ± 0.03 a

29

Unknown 10

ND

ND

0.15 ± 0.04 a

0.21 ± 0.06 a

30

(E)-nerolidolh

ND

0.39 ± 0.10 b

0.35 ± 0.08 b

0.79 ± 0. 22 a

Total

 

0.26 ± 0.06 d

3.97 ± 0.89 c

19.32 ± 3.81 b

39.52 ± 6.52 a

  1. The amounts of individual volatile compounds were calculated by comparing their peak areas relative to those of the corresponding internal standards. Letters indicate the significant differences between treatments (P < 0.05; Duncan’s multiple-range test). The names of the compounds followed by different letters indicate different methods for confirming identities: a–g comparison of retention times and mass spectra with those of authentic standards as follows: aRoth; bFluka; cTCI; dAcros; egift from Taro Maeda; fSigma-Aldrich; gcomparison of Kovats Indices (KI) on DB-5; hPherotech. ND: not detected.
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