Abstract
Spirulina platensis, a cyanobacterium whose N-metabolic pathway is similar to that of higher plants like rice (Oryza sativa), produces tenfold more protein, indicating a higher capacity for nitrate utilization/removal. Our in vitro analyses in crude extracts revealed that this can be attributed, at least in part, to the higher specific activities (3–6 fold) and half lives (1.2–4.4 fold) of the N-assimilating enzymes, nitrate reductase (NR), nitrite reductase (NiR) and glutamine synthetase (GS) in Spirulina.
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An erratum to this article is available at http://dx.doi.org/10.1007/s12298-009-0022-x.
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Ali, A., Jha, P., Sandhu, K.S. et al. Spirulina nitrate-assimilating enzymes (NR, NiR, GS) have higher specific activities and are more stable than those of rice. Physiol Mol Biol Plants 14, 179–182 (2008). https://doi.org/10.1007/s12298-008-0017-z
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DOI: https://doi.org/10.1007/s12298-008-0017-z