Prakasham, RRai, A NSingh, A KSingh, H N1991-08-012009-05-271991-08-012009-05-271991-08-01Prakasham R, Rai AN, Singh AK, Singh HN. Influence of different forms of nitrogen on uptake of ammonium, glutamate and glutamine in the cyanobacterium Nostoc muscorum. Indian Journal of Biochemistry & Biophysics. 1991 Aug; 28(4): 263-6http://imsear.searo.who.int/handle/123456789/26713Effect of various types of nitrogen nutrition was studied on the uptake of ammonium, glutamate and glutamine by Nostoc muscorum and its Het-Nif- mutant. Ammonium nitrogen acted as a potent inhibitor/repressor of ammonium, glutamate and glutamine transport. Nitrate nitrogen was found to be a strong inhibitor/repressor of ammonium transport, a partial inhibitor/repressor of glutamate transport but, caused a partial stimulation of glutamine transport.engAmmonia --metabolismBiological Transport, ActiveCyanobacteria --metabolismGlutamates --metabolismGlutamic AcidGlutamine --metabolismNitrogen --metabolismJournal Article