BioMed Research International / 2010 / Article / Tab 2

Research Article

Ulvan, a Sulfated Polysaccharide from Green Algae, Activates Plant Immunity through the Jasmonic Acid Signaling Pathway

Table 2

Ratio of sulfate and carboxyl groups deduced from the FITR spectra of ulvan-containing fractions. Signals observed at 1256 and 1641 cm-1 are caused by the stretching vibration of the S=O of sulfated rhamnose and of the C=O of uronic acid, respectively.

FractionS=O
C=O

Crude0.68
EtOH soluble0.26
EtOH insoluble0.93
600–400 kDa0.97
60–40 kDa0.96

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