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.

引用

页码：109 / 112

页数：4

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