Effect of nano-TiO2 on strength of naturally aged seeds and growth of spinach

Abstract

The effects of nano-TiO2 (rutile) and non-nano-TiO2 on the germination and growth of naturally aged spinach seeds were studied by measuring the germination rate and the germination and vigor indexes of aged spinach seeds. An increase of these factors was observed at 0.25–4‰ nano-TiO2 treatment. During the growth stage, the plant dry weight was increased, as was the chlorophyll formation, the ribulosebisphosphate carboxylase/oxygenase activity, and the photosynthetic rate. The best results were found at 2.5‰ nano-TiO2.

The effects of non-nano-TiO2 are not significant. It is shown that the physiological effects are related to the nanometer-size particles, but the mechanism by which nano-TiO2 improves the growth of spinach seeds still needs further study.

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References

  1. 1.

    K. M. Cocker, D. E. Evans, and M. J. Hodson, The amelioration of aluminum toxicity by silicon in higher plants: solution chemistry or an in plant mechanism? Physiol. Plant 104, 608–614 (1998).

    Article  CAS  Google Scholar 

  2. 2.

    K. M. Cocker, D. E. Evans, and M. J. Hodson, The amelioration of aluminum toxicity by silicon in wheat (Triticum aestivum L): malate exudation as evidence for an in plant mechanism, Planta 204, 318–323 (1998).

    Article  CAS  Google Scholar 

  3. 3.

    K. E. Hammond, D. E. Evans, and M. J. Hodson, Aluminum/silicon interactions in barley (Hordeum vulgare L) seedlings, Plant Soil 173, 89–95 (1995).

    Article  CAS  Google Scholar 

  4. 4.

    L. J. Wang, Z. M. Guo, T. J. Li, and M. Li, Biomineralized nanostructured materials and plant silicon nutrition, Prog. Chem. 11, 119–128 (1999) (in Chinese).

    CAS  Google Scholar 

  5. 5.

    L. J. Wang, Z. M. Guo, T. J. Li, and M. Li, Cell wall template-mediated synthesis of mesostructured biosilica, Acta Chim. Sin. 59(5), 784–787 (2001) (in Chinese).

    CAS  Google Scholar 

  6. 6.

    L. J. Wang, Z. M. Guo, T. J. Li, and M. Li, The nano sturcture SiO2 in the plants, Chin. Sci. Bull. 46(8), 625–631 (2001).

    Google Scholar 

  7. 7.

    C. C. Harrison, Evidence for intramineral macromolecules containing protein from plant silicas, Phytochemistry 41, 37–42 (1996).

    PubMed  Article  CAS  Google Scholar 

  8. 8.

    R. H. Crabtree, A new type of hydrogen bond, Science 282, 2000–2001 (1998).

    Article  CAS  Google Scholar 

  9. 9.

    J. L. Tao and G. H. Zheng, Seed Vigor, Science, Beijing, pp. 76–81, 109–111 (1991) (in Chinese).

    Google Scholar 

  10. 10.

    F. S. Hong, Z. G. Wei, and G. W. Zhao, The research on the extracting and synergetic leach reaction of chlorophyll in spinach, Applic. Chem. 18(7), 532–535 (2001) (in Chinese).

    CAS  Google Scholar 

  11. 11.

    D. I. Arnon, Copper enzymes in isolated chloroplasts: polyphernol oxidase in Beta vulgaris, Plant Physiol. 24, 1–15 (1949).

    PubMed  CAS  Article  Google Scholar 

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Correspondence to Fashui Hong.

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Zheng, L., Hong, F., Lu, S. et al. Effect of nano-TiO2 on strength of naturally aged seeds and growth of spinach. Biol Trace Elem Res 104, 83–91 (2005). https://doi.org/10.1385/BTER:104:1:083

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Index Entries

  • Nano-TiO2
  • spinach
  • aged seed
  • seed vigor
  • photosynthesis