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Effect of temperature on potassium and calcium transport from within the root to the xylem exudate of tobacco

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Summary

Detopped root systems of tobacco plants (Nicotiana tabacum L. var. Virginia Gold) were exposed to air at different temperatures (14 to 23°C). The volume of xylem exudate was related to temperature and decreasing the temperature resulted in a lag in the appearance of exudate. For 4 and 8 days of exudation the amounts of cations transported in the exudate were temperature dependent. The Q10 values were higher than usually encountered in biological reactions; the mean value was around 6.

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References

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Authors and Affiliations

  1. Agricultural Sciences, Los Angeles

    A. Wallace & A. M. Abou-Zamzam

  2. Soil Science and Agricultural Engineering, Riverside

    A. Wallace & A. M. Abou-Zamzam

Authors
  1. A. Wallace
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  2. A. M. Abou-Zamzam
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Additional information

This work was supported in part by National Science Foundation Grant GB8170.

University of California

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Wallace, A., Abou-Zamzam, A.M. Effect of temperature on potassium and calcium transport from within the root to the xylem exudate of tobacco. Plant Soil 38, 687–691 (1973). https://doi.org/10.1007/BF00010711

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  • DOI: https://doi.org/10.1007/BF00010711

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