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(A) The expression of STS in pine needles was analyzed after 2, 6 and 24 h of treatment with 1 mM sodium orthovanadate and 1 mM β-glycerophosphate or from untreated control plants. Strong induction of STS gene expression was seen 6 h after the treatment. Slight induction of STS was seen 24H of β-glycerophosphate treatment. The expected size of the PsSTS fragment is 853 bp. (B) The expression of housekeeping gene actin was used as a control.
