Plant histochemistry by correlation peak imaging.

  title={Plant histochemistry by correlation peak imaging.},
  author={Alexander Metzler and Marguerite Izquierdo and Anne Marie Ziegler and Walter K{\"o}ckenberger and Ewald Komor and Markus von Kienlin and A. Haase and Michel D{\'e}corps},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={92 25},
Using a new NMR correlation-peak imaging technique, we were able to investigate noninvasively the spatial distribution of carbohydrates and amino acids in the hypocotyl of castor bean seedlings. In addition to the expected high sucrose concentration in the phloem area of the vascular bundles, we could also observe high levels of sucrose in the cortex parenchyma, but low levels in the pith parenchyma. In contrast, the glucose concentration was found to be lower in the cortex parenchyma than in… CONTINUE READING