Ulvan, a Sulfated Polysaccharide from Green Algae, Activates Plant Immunity through the Jasmonic Acid Signaling Pathway
Table 3
Defense genes upregulated after ulvan or MeJA treatments of M. truncatula.
ID-Mt16kPlus
TIGR Gene Index v8
Annotation
Ratio
P-value
Ulvan
MeJA
Ulvan
MeJA
MT004351
TC104560
Phospholipase D
1.72
1.66
0.036
0.046
MT014135
BF640256
Lipoxygenase
1.51
1.50
0.011
0.011
MT015543
TC107737
Wound-induced protein
1.54
1.57
0.038
0.031
MT006789
TC104515
Defensin
2.31
1.85
0.001
0.006
MT008333
TC95553
HRGP-like
2.08
2.01
0.032
0.039
MT007566
TC100849
Pectinesterase inhibitor
1.80
1.51
0.003
0.022
MT000246
TC94445
Trypsin protease inhibitor
37.31
6.41
0.010
0.018
MT000087
TC106371
Protease inhibitor
1.83
1.73
0.026
0.020
MT005382
TC111698
Phytochelatin synthetase-like protein
1.55
1.75
0.015
0.003
MT014728
TC131819
Peroxidase
1.68
1.67
0.030
0.025
MT002340
TC96537
Thioredoxin reductase
1.75
1.74
0.035
0.038
MT004461
TC95580
Heat shock protein
1.67
2.16
0.015
0.001
MT015962
TC105992
Lipase GDSL
1.51
1.52
0.037
0.034
MT000987
TC101355
Anthranilate N-benzoyltransferase-like
1.51
1.52
0.013
0.011
MT014991
TC99521
Tropinone reductase
1.53
1.77
0.014
0.002
MT006133
TC98074
4-coumarate-CoA ligase
1.71
1.85
0.001
0.000
M. truncatula plants were sprayed with ulvan (ethanol-insoluble fraction at 1 mgmL-1) or MeJA (500 M) with Actilandes at 0.1%. Leaves collected 1 and 2 days after treatment were pooled and other samples were collected after 6 days. The fold ratio is calculated with the corresponding Actilandes-treated sample.