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Cold requirement for maximal activity of the bacterial ice nucleation protein INAZ in transgenic plants

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Abstract

The bacterial ice nucleation gene inaZ confers production of ice nuclei when transferred into transgenic plants. Conditioning of the transformed plant tissue at temperatures near 0°C greatly increased the ice nucleation activity in plants, and maximum ice nucleation activity was achieved only after low-temperature conditioning for about 48 h. Although the transgenic plants contain similar amounts of inaZ mRNA at both normal and low temperatures, low temperatures are required for accumulation of INAZ protein. We propose that the stability of the INAZ protein and thus ice nucleation activity in the transgenic plants is enhanced by low-temperature conditioning.

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Authors and Affiliations

  1. Department of Horticulture, Oregon State University, 97331, Corvallis, OR, USA

    Karen van Zee, Dawn A. Baertlein & Tony H. H. Chen

  2. Center for Gene Research and Biotechnology, Oregon State University, 97331, Corvallis, OR, USA

    Karen van Zee, Dawn A. Baertlein & Tony H. H. Chen

  3. Department of Plant Pathology, University of California, 94720, Berkeley, CA, USA

    Steve E. Lindow & Nicholas Panopoulos

Authors
  1. Karen van Zee
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  2. Dawn A. Baertlein
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  3. Steve E. Lindow
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  4. Nicholas Panopoulos
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  5. Tony H. H. Chen
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van Zee, K., Baertlein, D.A., Lindow, S.E. et al. Cold requirement for maximal activity of the bacterial ice nucleation protein INAZ in transgenic plants. Plant Mol Biol 30, 207–211 (1996). https://doi.org/10.1007/BF00017816

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  • DOI: https://doi.org/10.1007/BF00017816

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