Article
Effect of Glucose Utilization on Nitrite Excretion by the Unicellular Cyanobacterium Synechocystis sp. Strain PCC 6803
Author | Reyes, José C.
Chávez de Diego, Sebastián Muro Pastor, María Isabel Florencio Bellido, Francisco Javier ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Department | Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular |
Date | 1993 |
Published in |
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Abstract | Up to 1 mM nitrite was excreted by Synechocystis strain 6803 cells growing under mixotrophic or photoheterotrophic conditions. This excretion is not due to a lower ratio of nitrite and nitrate reductase activities in the ... Up to 1 mM nitrite was excreted by Synechocystis strain 6803 cells growing under mixotrophic or photoheterotrophic conditions. This excretion is not due to a lower ratio of nitrite and nitrate reductase activities in the presence of glucose but seems to be related to a shortage of reduced ferredoxin, their electron donor, as a result of a decrease in noncyclic photosynthetic flow observed under these circumstances. Because about 60% of the reduced nitrate is excreted, the potential utilization of cyanobacteria for removal of nitrate from contaminated waters containing high concentrations of organic compounds is questioned. |
Funding agencies | Dirección General de Investigación Científica y Técnica (DGICYT). España |
Project ID. | grants PB88-0020
![]() grants PB91-0127 ![]() |
Citation | Reyes, J.C., Chávez de Diego, S., Muro Pastor, M.I. y Florencio Bellido, F.J. (1993). Effect of Glucose Utilization on Nitrite Excretion by the Unicellular Cyanobacterium Synechocystis sp. Strain PCC 6803. Applied and Environmental Microbiology, 59 (9), 3161-3163. |
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