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Table 2 Characteristics of leaf anatomical structures in Quercussect. Heterobalanusplants

From: Leaf ecological stoichiometry and anatomical structural adaptation mechanisms of Quercus sect. Heterobalanus in southeastern Qinghai–Tibet Plateau

  

CU (µm)

TE (µm)

TP (µm)

TS (µm)

LE (µm)

LT (µm)

P/S ratio

CTR (%)

Life forms

Trees

6.26 ± 0.40*

33.85 ± 3.91*

128.75 ± 5.38*

107.34 ± 6.57*

8.04 ± 1.03*

281.33 ± 9.66*

1.20 ± 0.08

45.84 ± 2.82

Shrubs

5.64 ± 0.39

29.16 ± 1.62

126.09 ± 3.64

96.29 ± 6.34

7.32 ± 0.42

268.73 ± 6.31

1.31 ± 0.09*

46.95 ± 1.86*

Mean

5.95

31.50

127.42

101.81

7.68

275.03

1.26

46.40

CV (%)

7.36

10.54

1.48

7.68

6.65

3.24

6.27

1.69

Species

Q. pannosa

5.99 ± 0.52c

29.03 ± 2.30 cd

130.89 ± 6.49c

98.67 ± 8.11c

7.24 ± 0.68bc

279.27 ± 6.88c

1.34 ± 0.13b

46.91 ± 2.80c

Q. aquifolioides

6.81 ± 0.89a

35.14 ± 6.80b

153.28 ± 11.01a

107.41 ± 15.5b

9.01 ± 2.91a

291.85 ± 19.47b

1.46 ± 0.23a

52.74 ± 5.06a

Q. spinosa

6.48 ± 0.74b

40.75 ± 8.47a

119.16 ± 8.87d

98.84 ± 8.83c

9.52 ± 1.54a

319.55 ± 17.65a

1.21 ± 0.14c

44.80 ± 4.15de

Q. semicarpifolia

5.90 ± 0.74c

27.86 ± 2.47d

133.00 ± 7.79c

101.00 ± 9.11c

6.63 ± 1.01c

262.57 ± 15.52d

1.33 ± 0.13b

50.82 ± 4.16b

Q. longispica

6.38 ± 0.68b

30.32 ± 3.82c

138.55 ± 8.97b

114.01 ± 10.67a

7.40 ± 0.75b

266.63 ± 11.57d

1.23 ± 0.14c

43.53 ± 4.18e

Q. monimotricha

4.23 ± 0.51d

27.16 ± 3.03d

107.49 ± 5.44e

89.53 ± 7.93d

6.98 ± 0.78bc

236.79 ± 13.78e

1.21 ± 0.14c

45.53 ± 3.34 cd

Mean

5.97

31.71

130.39

101.58

7.80

276.11

1.29

47.39

CV (%)

15.28

16.57

12.12

8.24

15.12

10.20

7.49

7.65

  1. CU thickness of upper epidermal cuticle; TE thickness of upper epidermis; TP thickness of palisade tissue; TS thickness of spongy tissue; LE thickness of lower epidermis; LT blade thickness; P/S ratio thickness of palisade tissue to thickness of sponge tissue ratio; CTR organizational tightness; CV coefficient of variation
  2. Asterisks (*) indicate a significant difference between trees and shrubs according to t-test (P < 0.05). Different lowercase letters in the same column indicate significant differences among species according to one-way ANOVA (P < 0.05). Values are the mean ± SE, n ≥ 3