TY - JOUR
T1 - High internal pH conveys ammonia resistance in spirulina platensis
AU - Belkin, Shimshon
AU - Boussiba, Sammy
PY - 1991
Y1 - 1991
N2 - 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.
AB - 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.
KW - Cyanobacteria
KW - Spirulina plantensis, proton gradients, ammonia, alkalophile
UR - http://www.scopus.com/inward/record.url?scp=0026066565&partnerID=8YFLogxK
U2 - 10.1016/0960-8524(91)90149-E
DO - 10.1016/0960-8524(91)90149-E
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AN - SCOPUS:0026066565
SN - 0960-8524
VL - 38
SP - 167
EP - 169
JO - Bioresource Technology
JF - Bioresource Technology
IS - 2-3
ER -