NICKEL REGULATION OF PHOTOAUTOTROPHY IN A CYANOBACTERIUM

被引：11

作者：

ASTHANA, RK ^{[1
]}

PANDEY, PK ^{[1
]}

SINGH, SP ^{[1
]}

机构：

[1] BANARAS HINDU UNIV,ALGAL RES LAB,CAS BOT,VARANASI 221005,UTTAR PRADESH,INDIA

来源：

WATER AIR AND SOIL POLLUTION | 1990年 / 52卷 / 3-4期

关键词：

D O I：

10.1007/BF00229438

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ni inhibited photoautotrophic growth, nitrogenase activity, oxygenic photosynthesis (O2- evolution, (CO2)-C-14-uptake) and respiratory O2-uptake in the diazotrophic cyanobacterium, Nostoc muscorum. (CO2)-C-14-uptake was more sensitive to Ni compared to nitrogenase activity, O2-evolution or respiratory O2-uptake. Lower Ni concentrations (1-mu-M and 5-mu-M) stimulated N2ase as well as RuBPcase (ribulose bisphosphate carboxylase) activity. It is proposed that Ni inhibition is mainly through the regulation of RuBPcase activity in the cyanobacterium.

引用

页码：263 / 276

页数：14

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