Table 2 Cell membrane stability—MSI (%), dry mass (%), relative water content—RWC (%), chlorophyll [Chl a, Chl b, Chl a + b, ratio b/a] (mg g−1), and photosynthetic activities—net photosynthetic rate—PN (µmol CO2 m−2 s−1), stomatal conductance—gs (µmol CO2 m−2 s−1) and intercellular CO2 concentration—Ci (µmol CO2 m−2 s−1) detected for all samples (abbreviations see “Materials and methods”).

From: Common weeds as heavy metal bioindicators: a new approach in biomonitoring

Plants

MSI

Dray mass

RWC

Chl a

Chl b

Ch a + b

Ratio b/a

PN

gs

Ci

Lolium multiflorum

1A

97.99

20.00

94.30

5.84

1.91

7.74

0.33

10.67

85.84

471.82

1B

94.30

14.85

91.89

7.33

2.39

9.58

0.32

16.43

123.64

436.27

1C

96.82

16.19

64.57

6.00

1.64

7.60

0.26

15.18

115.29

507.37

Control

98.10

10.48

96.51

9.41

2.98

12.35

0.32

10.77

70.05

233.93

Trifolium pratense

2A

96.64

19.97

93.56

7.95

4.00

12.80

0.50

20.71

108.62

331.63

2B

98.27

20.50

93.36

5.78

2.01

7.74

0.35

16.30

188.86

518.13

2C

96.76

16.93

90.74

8.79

4.96

14.84

0.58

28.28

172.52

459.57

Control

95.86

11.51

93.77

17.85

5.30

22.89

0.30

9.10

38.43

254.63

Rumex accetosa

3A

97.66

12.73

95.25

5.15

2.01

7.14

0.39

7.24

38.28

357.50

3B

98.83

14.30

90.90

6.55

2.51

9.04

0.38

7.49

75.96

506.33

3C

97.03

8.01

92.08

11.02

4.33

15.36

0.39

13.47

99.45

517.57

Control

94.95

11.86

89.68

7.06

2.19

9.16

0.31

18.27

116.93

284.43

Alcea rosea

4A

95.02

21.78

78.23

4.51

1.52

6.02

0.34

8.66

44.48

308.00

4B

94.37

19.09

78.78

6.80

2.28

9.03

0.34

12.29

84.37

430.90

4C

93.41

22.34

62.53

6.02

2.20

8.34

0.37

11.65

58.14

392.00

Control

95.03

13.19

80.94

14.54

16.01

30.11

0.75

9.75

57.67

232.53

Amaranthus retroflexus

5A

97.44

23.11

91.75

3.76

1.13

4.81

0.30

18.21

81.08

261.47

5B

98.21

22.07

95.38

3.33

0.90

4.11

0.27

15.42

77.16

341.03

5C

97.38

14.19

94.11

10.27

4.06

14.84

0.39

8.45

32.64

309.50

Control

94.13

9.26

91.04

12.83

3.21

15.73

0.25

6.70

57.67

232.53

Plantago lanceolata

6A

98.23

11.62

92.23

8.34

3.15

11.28

0.38

12.37

86.46

391.97

6B

98.76

16.77

93.62

3.93

1.28

5.11

0.33

16.87

128.84

446.53

6C

98.29

10.20

93.92

8.58

3.01

11.48

0.35

15.60

131.24

528.20

Control

98.78

6.88

92.29

13.88

4.41

18.15

0.32

10.49

88.90

555.80

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