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Table 2 Average concentrations of iron and phosphorus in selected regions

From: Iron and ferritin accumulate in separate cellular locations in Phaseolus seeds

K

Region

1

2

3

4

5

6

7

8

9

Fe (μg g -1 )

71 ± 4

60 ± 3

283 ± 21

254 ± 10

411 ± 22

341 ± 20

502 ± 46

80 ± 2

124 ± 5

Det. Lim.

(0.6)

(2)

(5.3)

(4.2)

(9.4)

(6.3)

(21)

(1.7)

(2.7)

P (μg g -1 )

1170

1080

2490

1900

2390

2400

2720

472

33

 

± 57

± 63

± 180

± 120

± 190

± 220

± 210

± 26

± 13

Det. Lim.

(10)

(41)

(135)

(103)

(186)

(155)

(288)

(26)

(19)

 

L

M

Region

10

11

12

13

14

15

16

17

18

Fe (μg g -1 )

83 ± 5

125 ± 8

146 ± 6

68 ± 3

49 ± 5

407 ± 22

362 ± 13

257 ± 10

183 ± 11

Det. Lim.

(0.5)

(0.9)

(1.4)

(1)

(0.5)

(7.7)

(5.9)

(4.4)

(6.4)

P (μg g -1 )

7480

10400

10600

9980

2310

4340

4330

3240

2900

 

± 200

± 280

± 120

± 120

± 66

± 230

± 180

± 81

± 100

Det. Lim.

(8.7)

(17)

(26)

(21)

(8.4)

(158)

(90)

(66)

(129)

 

N

O

Region

19

20

21

22

23

24

25

26

 

Fe (μg g -1 )

52 ± 3

232 ± 9

297 ± 14

54 ± 3

35 ± 4

85 ± 4

187 ± 11

192 ± 15

 

Det. Lim.

(0.8)

(4.2)

(5.4)

(0.4)

(0.7)

(1.1)

(4.9)

(7.3)

 

P (μg g -1 )

3950

5440

5030

6220

3100

6860

6990

9780

 
 

± 40

± 270

± 230

± 340

± 210

± 190

± 340

± 51

 

Det. Lim.

(11)

(80)

(107)

(8.2)

(15)

(22)

(104)

(161)

 
  1. Concentration of iron (Fe) and phosphorus (P) in the regions indicated in Fig. 1k-o. The concentrations were measured using micro-PIXE. The region numbers are indicated in the table. Minimum detection limits (99% confidence level) are shown in parentheses (Det. Lim.).