|
Culture treatment
|
Fluorescence variables (r.u.)
|
Day 1
|
Day 4
|
Day 7
|
|---|
|
Control (no Se)
|
F
v
/F
m
|
0.77
|
0.75
|
0.80
|
|
rETR
max
|
461
|
404
|
359
|
|
E
k
|
758
|
714
|
531
|
|
V
j
|
0.21
|
0.22
|
0.21
|
|
V
i
|
0.43
|
0.43
|
0.43
|
|
Se treated culture
|
F
v
/F
m
|
0.74
|
0.74
|
0.78
|
|
rETR
max
|
436
|
380
|
332
|
|
E
k
|
665
|
660
|
625
|
|
V
j
|
0.24
|
0.26
|
0.23
|
|
V
i
|
0.46
|
0.46
|
0.46
|
- Changes of variables Vj and Vi were calculated from fast fluorescence induction kinetics (Fig. S2) monitored on Day 1, 4 and 7 during a 10-day experiment in the presence and absence of Se. Vj reflects a reduction of Q
−A
(photochemical phase) while Vi is thought to correspond reflect various redox state of temporary maximum of Q
−A
Q
2−B
