Stable isotope labeling of Arabidopsis thaliana for an NMR-based metabolomics approach |
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Authors: | Kikuchi Jun Shinozaki Kazuo Hirayama Takashi |
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Institution: | Protein Research Group, Genomic Sciences Center, RIKEN Yokohama Institute, 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045 Japan. |
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Abstract: | Nuclear magnetic resonance (NMR) will become a key technology in plant metabolomics with the use of stable isotope labeling and advanced hetero-nuclear NMR methodologies. To demonstrate the power of this approach, we performed multi-dimensional hetero-nuclear NMR analysis of metabolic movement of carbon and nitrogen nuclei in Arabidopsis thaliana. First, distinct ethanol-stress response was investigated using (13)C-labeled wild type and an ethanol-hypersensitive mutant plants. Furthermore, we followed nitrogen fluxes in (15)N-labeled seeds during the initiation of germination in vivo. The future role of stable isotope-labeling combined with advanced hetero-nuclear NMR in plant metabolomics is discussed. |
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