Post on 21-Jan-2016
Co
l-0
cat2
pp
2a
-b'γ
sid
2
cat2
sid
2
pp
2a
-b'γ
np
r1
cat2
pp
2a
-b'γ
cat2
sid
2
pp
2a
-b'γ
sid
2
cat2
nrp
1
cat2
np
r1 p
p2
a-b
'γ
sensCAT2 + revCAT2
sensCAT2 + LB1
sensNPR1 + revNPR1+
Digestion
sensPP2A-B'γ + revPP2A-B'γ
revPP2A-B'γ + LBa1
sensSID2 + revSID2+
Digestion
1000 bp
750 bp
250 bp
500 bp
Fig. S1. Production and genotyping of Arabidopsis mutant lines (cat2 pp2a-b'γ, cat2 pp2a-b'γ sid2, cat2 npr1 pp2a-b'γ). The frame on the right indicates the size of the markers shown on the left lane of the main photograph.
Fig. S2. Ascorbate and glutathione contents in Arabidopsis mutants grown at moderate light in long days. Top, ascorbate. Bottom, glutathione. White blocks, reduced forms. Red blocks, oxidized forms. Numbers above the bars indicate % reduction.
91 63 85 69 %
Co
l-0
cat2
pp
2a
-b'
cat2
pp
2a
-b'
Co
l-0
cat2
pp
2a
-b'
cat2
pp
2a
-b'
Le
af
con
ten
t (n
mo
l·g-1F
W)
Le
af
con
ten
t (µ
mo
l·g-1F
W)
96 85 82 81 %
Fig. S3. Conditional nature of cat2 pp2a-b' interaction: Arabidopsis plants grown in low light (30 µmol·m-2s-1) in long days do not show oxidative stress or lesions. (a) Photographs of plants. (b) Fresh weight. (c) Glutathione contents. Red blocks, GSSG. White blocks, GSH.
Col-0 cat2
cat2 pp2a-b'pp2a-b'
Ros
ette
FW
(m
g)
Leaf
glu
tath
ione
(nm
ol·g
-1F
W)
Col
-0
cat2
pp2a
-b'
cat2
pp2
a-b'
(a)
(b)
(c)
0.0000
0.0002
0.0004
0.0006
0.0008
0.00000
0.00015
0.00030
0.00045
0.00060
0.000
0.002
0.004
0.006
0.008
0.00000
0.00004
0.00008
0.00012
0.00016
0.00000
0.00005
0.00010
0.00015
0.00020
0.0000
0.0002
0.0004
0.0006
0.0008
0.00000
0.00015
0.00030
0.00045
0.00060
0.00000
0.00004
0.00008
0.00012
0.00016
0.0
1.5e-5
3.0e-5
4.5e-5
6.0e-5
0.00000
0.00015
0.00030
0.00045
0.00060
0.0000
0.0003
0.0006
0.0009
0.0012
0.0000
0.0002
0.0004
0.0006
0.0008
0.000
0.001
0.002
0.003
0.004
0.00000
0.00003
0.00006
0.00009
0.00012
0.0000
0.0001
0.0002
0.0003
0.0004
0.00000
0.00003
0.00006
0.00009
0.00012
0.00000
0.00004
0.00008
0.00012
0.00016
0.0000
0.0015
0.0030
0.0045
0.0060
0.000
0.003
0.006
0.009
0.012
0.000
0.001
0.002
0.003
0.004
0.0000
0.0001
0.0002
0.0003
0.0004
0.000
0.001
0.002
0.003
0.004
0.00
0.01
0.02
0.03
0.04
Fig. S4. General increases in free amino acid contents in cat2 pp2a-b'Arabidopsis lines were grown and sampled in short days. In all frames, the column order is, from left to right: Col-0, cat2, pp2a-b'cat2 pp2a-b' . Scaling shows relative contents after normalization to internal standard and sample fresh weight. *Significant difference from Col-0 at P<0.05.
Primary nitrogen assimilation/remobilization/photorespiration
Sulfur-containing amino acids and synthesis pathways
Branched-chain amino acids
Glutamate Glutamine Aspartate Asparagine Glycine Serine
Cysteine
Arginine
Methionine Homoserine
Isoleucine Leucine Valine
Aromatic amino acids and synthesis
Phenylalanine Tyrosine Tryptophan
Others
Lysine GABA-Alanine
O-acetylserine
Ornithine
Shikimate
Threonine
* * *
*
*
*
* * *
** *
*
*
*
**
* *
** *
* * *
Fig. S5. Pattern of phosphoproteins in total soluble and membrane fractions isolated from Arabidopsis wild type, cat2, pp2a-b'γ and cat2 pp2a-b'γ leaves grown and sampled in short days. Membrane (upper panels) and soluble (lower panels) fractions of Col-0, pp2a-b’γ, cat2 and cat2 pp2a-b'γ leaves were fractionated by one-dimensional SDSPAGE. Phosphoproteins were detected with ProQ Diamond (left panels), and total proteins were subsequently stained with Sypro Ruby (right panels). Samples corresponding to 80 μg of protein were loaded in each well.
0
10
20
30
40
0
5
10
15
20
cat2
pp2
a-b'
γ
cat2
C
ol-0
pp2a
-b'γ
Num
ber o
f day
sN
umbe
r of l
eave
s
Fig. S6. Analysis of flowering time in Arabidopsis Col-0 and mutant lines (a). Number of days at flowering (stem length of 1 cm). (b) Number of leaves at flowering. Data are means of 30 plants growing in long days (16h light/8h dark). * and + indicate difference relative to Col-0 or to cat2 (P<0.05).
+*
+*
+*+
*