Open AccessUptake of glutamine and glutamate by the dinitrogen‐fixing cyanobacterium Anabaena sp. PCC7120
Author(s) -
Flores Enrique,
MuroPastor M.Isabel
Publication year - 1988
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1988.tb03163.x
Subject(s) - glutamine , glutamine synthetase , anabaena , glutamate synthase , biochemistry , amino acid , glutamate receptor , cyanobacteria , chemistry , biology , bacteria , receptor , genetics
Whole cells of the dinitrogen‐fixing cyanobacterium Anabaena sp. PCC7120 exhibited K m values for l ‐glutamine and l ‐glutamate of 33 μM and 0.5 mM, respectively. V max of uptake was ca. 30 nmol mg −1 (chlorophyll) min −1 for both amino acids. The similar pattern of sensitivity to other amino acids exhibited by both transport activities suggests that a common transport system is involved in glutamine and glutamate uptake by this cyanobacterium.