, Volume 198, Issue 3-4, pp 210-217

Nuclear magnetic resonance microscopy ofAncistrocladus heyneanus

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The tropical lianaAncistrocladus heyneanus, which is known for its biologically active naphthylisoquinoline alkaloids, has been studied by nuclear magnetic resonance (NMR) microscopy for the first time. The spatial resolution of the cross-sectional NMR images was of the order of 20 μm. Quantitative NMR relaxation time images of the root and the shoot show great contrast between different tissue regions. In addition, we observed the regional distribution of chemical compounds inAncistrocladus heyneanus by chemical-shift NMR microscopy. The NMR imaging results were compared with light and fluorescence microscopic images and reveal the excellent tissue characterization using NMR technology.