Positive regulation by nitrite of the nitrate assimilation operon in the cyanobacteria Synechococcus sp strain PCC 7942 and Plectonema boryanum

被引：32

作者：

Kikuchi, H ^{[1
]}

Aichi, M ^{[1
]}

Suzuki, I ^{[1
]}

Omata, T ^{[1
]}

机构：

[1] NAGOYA UNIV, SCH AGR SCI, DEPT APPL BIOL SCI, NAGOYA, AICHI 46401, JAPAN

来源：

JOURNAL OF BACTERIOLOGY | 1996年 / 178卷 / 19期

关键词：

D O I：

10.1128/jb.178.19.5822-5825.1996

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

In the absence of fixation of ammonium to glutamine, nitrate and nitrite activated transcription of the nitrate assimilation (nirA-nrtABCD-narB) operon of Synechococcus sp. strain PCC 7942. In a nitrate reductase-deficient mutant, only nitrite activated transcription, indicating that nitrite is the actual activator of the operon. Nitrate and nitrite were also found to activate the transcription of a nitrate assimilation operon in the filamentous nonheterocystous nitrogen-fixing cyanobacterium Plectonema boryanum.

引用

页码：5822 / 5825

页数：4

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