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Journal of Experimental Botany, Vol. 51, No. 353, pp. 2109-2117, December 2000
© 2000 Oxford University Press

Metabolite monitoring in plants with double-quantum filtered chemical shift imaging

Kristina Wolf1, Annette van der Toorn2, Klaus Hartmann3, Lukas Schreiber3, Wilfried Schwab4, Axel Haase2 and Gerhard Bringmann1,5

1 Institut für Organische Chemie, Am Hubland, D-97074 Würzburg, Germany
2 Physikalisches Institut, Am Hubland, D-97074 Würzburg, Germany
3 Julius-von-Sachs-Institut für Biowissenschaften, Julius-von-Sachs-Platz 2, D-97082 Würzburg, Germany
4 Institut für Pharmazie und Lebensmittelchemie, Am Hubland, D-97074 Würzburg, Germany

1H spectroscopic imaging in combination with double-quantum filtering with magnetic field gradients is used for in vivo applications in humans and animals. Because of its high selectivity and strong reduction of water signal it is also a useful tool for monitoring the distribution of specific metabolites in plants. The development and application of a double-quantum selective spectroscopic imaging sequence for detecting the sucrose distribution in the stem of sugar cane (Saccharum officinarum L.) is described. The results show that local differences in sucrose distribution can be detected non-invasively with a resolution of 0.4x0.4x6 mm3 to 0.645x0.645x6 mm3.

Key words: NMR imaging, localized NMR spectroscopy, metabolite monitoring, sugar cane.


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