Phenolics during early development of Betula pubescens seedlings: inhibition of phenylalanine ammonia lyase

  title={Phenolics during early development of Betula pubescens seedlings: inhibition of phenylalanine ammonia lyase},
  author={Sarita Keski-Saari and Maarit A. Falck and Jaakko Heinonen and J. C. J. Van Zon and Riitta Julkunen-Tiitto},
We studied phenolic metabolism and plant growth in birch seedlings at the beginning of their development by inhibiting phenylalanine ammonia lyase (PAL), which is the first committed step in phenylpropanoid metabolism. Betula pubescens (Ehrh.) seeds were germinated in inhibitor-free media and the seedlings were transferred to hydroponic culture at the cotyledon stage. They were 6 days old at the start of the experiment, which lasted for 3 weeks. PAL activity was inhibited by three different… CONTINUE READING
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