Abstract
Previous research showed that nano-TiO2 could significantly promote photosynthesis and greatly improve growth of spinach, but, we also speculated that an increase of spinach growth by nano-TiO2 treatment might be closely related to the change of nitrogen metabolism. The effects of nano-anatase TiO2 on the nitrogen metabolism of growing spinach were studied by treating them with nano-anatase TiO2. The results showed that, nano-anatase TiO2 treatment could obviously increase the activities of nitrate reductase, glutamate dehydrogenase, glutamine synthase, and glutamic-pyruvic transaminase during the growing stage. Nano-anatase TiO2 treatment could also promote spinach to absorb nitrate, accelerate, inorganic nitrogen (such as NO t-3 −N and NH +4 −N) to be translated into organic nitrogen (such as protein and chlorophyll), and enhance the fresh weight and dry weights.
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Yang, F., Hong, F., You, W. et al. Influence of nano-anatase TiO2 on the nitrogen metabolism of growing spinach. Biol Trace Elem Res 110, 179–190 (2006). https://doi.org/10.1385/BTER:110:2:179
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DOI: https://doi.org/10.1385/BTER:110:2:179