1980
DOI: 10.1111/j.1529-8817.1980.tb03050.x
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PHOSPHATE UPTAKE BY SYNECHOCOCCUS LEOPOLIENSIS (CYANOPHYCEAE): ENHANCEMENT BY CALCIUM ION1

Abstract: The influence of metallic, cations (added at 10 μM‐1 mM) on the uptake of orthophosphate from 0.2–10 μM solution by Synechococcus leopoliensis (Racib.) Komarek was investigated. All cations tested except Mg2+ and Zn2+ stimulated phosphate uptake. The most pronounced stimulation of phosphate uptake was caused by Ca2+·Ca2+ markedly decreased the half‐saturation concentration for orthophosphate uptake, apparently by acting upon the metabolic processes of phosphate transport into the cell. Phosphate did not influe… Show more

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Cited by 39 publications
(37 citation statements)
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“…This has been shown not to be the case with the blue-green algae A. nidulans and 0. limnetica (11,20). The stimulation of Pi uptake by low levels of Ca2" suggested a possible involvement of CaM in this process.…”
Section: Discussionmentioning
confidence: 99%
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“…This has been shown not to be the case with the blue-green algae A. nidulans and 0. limnetica (11,20). The stimulation of Pi uptake by low levels of Ca2" suggested a possible involvement of CaM in this process.…”
Section: Discussionmentioning
confidence: 99%
“…While stimulation of Pi uptake by various cations has been widely reported (5,11,(18)(19)(20)(21)23), our work has concentrated on the effect of Ca2' on Pi uptake. Low concentrations (2 AiM) of Ca2' have been shown to stimulate Pi uptake by the bluegreen alga Anacystis nidulans (UTEX 625) (5,20). In our continuing studies, we have found Ca2" stimulation of Pi uptake in another blue-green alga Oscillaloria limnetica (Lemmerman) (I 1).…”
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confidence: 99%
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“…Uptake of phosphate has been characterized in several strains of cyanobacteria; it is energy dependent (4,8,11,12,28) and shows saturation kinetics (8,11,12,18,27). The kinetic parameters for phosphate transport vary considerably among cyanobacterial strains; they are influenced by the composition of the medium (8,9,12,23) and by the nutritional state of the cells (13). In particular, phosphorous-deficient cells have elevated rates of phosphate transport (3, 10-12, 14, 15, 17, 27).…”
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confidence: 99%