Metabolism of some saccharides by N2 FIXING Cyanobacterium Nostoc spongiaes

Abstract

The results of this study showed that the effects of different saccharides used fructose , arabinose , lactose , maltose and sucrose at different concentration 5mg/ml , lOmg/ml and 20 mg/ml had different effects on the growth of the species Nostoc spongiaes in continuous light period and alternating light dark period 10:14 respectively ,the effects where greate in light period than the alternating light period .Also results showed that low concentration of saccharides need a period of time to adapt themself before it can metabolize it has been shown that the same pattern followed on the effects of these saccharides on protein concentration .Although high protein concentration shown in the continuous light than that of alternating light and dark period.