HIGH INTERNAL PH CONVEYS AMMONIA RESISTANCE IN SPIRULINA-PLATENSIS

被引：37

作者：

BELKIN, S

BOUSSIBA, S

机构：

[1] Environmental Microbiology, The Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev, Sede-Boker Campus

[2] Algal Biotechnology, The Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev, Sede-Boker Campus

来源：

BIORESOURCE TECHNOLOGY | 1991年 / 38卷 / 2-3期

关键词：

CYANOBACTERIA; SPIRULINA-PLATENSIS; PROTON GRADIENTS; AMMONIA; ALKALOPHILE;

D O I：

10.1016/0960-8524(91)90149-E

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Spirulina platensis is an alkalophilic cyanobacterium, often cultivated in mass cultures. Unlike many other photosynthetic microorganisms, it is capable of withstanding and even utilizing ammonia at high environmental pH. It is suggested that high internal pH values limit intracellular accumulation of ammonia, thus preventing uncoupling of photosynthesis. Furthermore, it is suggested that the high average internal pH (7.5) is conferred mainly by the intrathylakoid pH which is approximately 1 pH unit higher than in other cyanobacteria tested.

引用

页码：167 / 169

页数：3

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