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  • Title: [Primary and secondary metabolism of winter wheat under cold hardening and treatment with antioxidants].
    Author: Olenichenko NA, Zagoskina NV, Astakhova NV, Trunova TI, Kuznetsov IuV.
    Journal: Prikl Biokhim Mikrobiol; 2008; 44(5):589-94. PubMed ID: 18822781.
    Abstract:
    The content of saccharides and phenolic compounds (including flavonoids and lignin) and the activity of L-phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) were determined in leaves and tillering nodes of winter wheat Triticum aestivum L.) cultivars Inna and Moskovskaya 39, differing in the level of frost resistance. These parameters were determined in three groups of plants--control, hardened, and treated with synthetic antioxidants (ambiol and amerol 2000). Cold hardening increased accumulation of primary and secondary metabolites in tissues but decreased the enzyme activity. Treatment with antioxidants also increased the content of saccharides and phenolic compounds (primarily flavonoids) and PAL activity. These changes were more pronounced in cultivar Inna, which is less frost resistant than Moskovskaya 39.
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