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A plant cold-induced uncoupling protein

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Abstract

In mammals, body temperature can be raised by the action of uncoupling proteins (UCPs), which dissipate the proton electrochemical gradient across the inner mitochondrial membrane to produce heat rather than synthesize ATP1. Any similar mechanism of thermogenesis in plants is not so well understood. We have now identifiedcomplementary DNA from potatoes (Solanum tuberosum) that encodes a plant uncoupling protein, named StUCP, which is induced by cold treatment and so may be involved in thermoregulation in plants.

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Figure 1: Alignment of the amino-acid sequences (single-letter code) of potato and human uncoupling proteins.
Figure 2: Northern blot analysis of StUCP expression.

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Author notes

  1. Jörg W. Riesmeier

    Present address: PlantTec Biotechnology GmbH R&D, Hermannswerder 14, D-14473, Potsdam, Germany

Authors and Affiliations

  1. Max-Planck-Institut för Molekulare Pflanzenphysiologie, Karl-Liebknecht-Strasse 25, Haus, 20, D-14476, Golm, Germany

    Maryse Laloi, Mathieu Klein & Bernd Müller-Röber

  2. Centre de Recherches sur l'Endocrinologie Moléculaire et le Développement, CNRS, 9 rue Jules Hetzel, F-92190, Meudon, France

    Christophe Fleury, Frédéric Bouillaud & Daniel Ricquier

Authors
  1. Maryse Laloi
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  2. Mathieu Klein
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  3. Jörg W. Riesmeier
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  4. Bernd Müller-Röber
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  5. Christophe Fleury
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  6. Frédéric Bouillaud
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  7. Daniel Ricquier
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Laloi, M., Klein, M., Riesmeier, J. et al. A plant cold-induced uncoupling protein. Nature 389, 135–136 (1997). https://doi.org/10.1038/38156

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