Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2004 by Universidad Católica de Valparaíso -- Chile
Vol. 7 No. 3, Issue of December 15, 2004

Figure 3. Percentage increase/decrease in nitrate reductase activity of Ni treated immobilized and free cells of Aulosira fertilissima compared to free cells (μg NO2 Chl a-1).

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