COMPETITION BETWEEN NITRATE AND NITRITE UPTAKE IN THE CYANOBACTERIUM ANACYSTIS-NIDULANS

被引：11
|
作者：
MADUENO, F
FLORES, E
GUERRERO, MG
机构：
[1] FAC BIOL SEVILLA, DEPT BIOQUIM, APARTADO 1095, E-41080 SEVILLA, SPAIN
[2] CSIC, E-41080 SEVILLA, SPAIN
来源：
BIOCHIMICA ET BIOPHYSICA ACTA | 1987年 / 896卷 / 01期
关键词：
D O I：
10.1016/0005-2736(87)90362-2
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Nitrate and nitrite reciprocally inhibited the utilization of each other in the unicellular cyanobacterium Anacystis nidulans. Nitrate hampered active nitrite uptake both in wild-type cells lacking active nitrate reductase and in a nitrate reductase-defective mutant. Nitrate uptake in a nitrite reductase-defective mutant was inhibited by nitrite. The competitive interaction between nitrate and nitrite utilization in A. nidulans seems to take place at the level of substrate transport into the cell.
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页码：109 / 112
页数：4
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