Advantages of compound-specific stable isotope measurements over bulk measurements in studies on plant uptake of intact amino acids.

@article{Sauheitl2009AdvantagesOC,
  title={Advantages of compound-specific stable isotope measurements over bulk measurements in studies on plant uptake of intact amino acids.},
  author={Leopold Sauheitl and Bruno Glaser and Alexandra Weigelt},
  journal={Rapid communications in mass spectrometry : RCM},
  year={2009},
  volume={23 20},
  pages={3333-42}
}
Increasing interest in the ability of plants to take up amino acids has given rise to questions on the accuracy of the commonly used bulk method to measure and calculate amino acid uptake. This method uses bulk measurements of 13C and 15N enrichment in plant tissues after application of dual-labelled amino acids but some authors have recommended the use of compound-specific stable isotope (CSI) analysis of the plants' amino acids instead. However, there has never been a direct evaluation of… CONTINUE READING
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