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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chernikova, A. A. Tsoglin, L. N. Markelova, A. G. Zorin, S. N. Mazo, V. K. Pronina, N. A. |
| Copyright Year | 2006 |
| Abstract | Effects of manganese salt (MnCl$_{2}$) on growth of Spirulina platensis and capacity of the cyanobacteria to accumulate the metal in various cell components were studied. S. platensis cells were shown to tolerate high concentrations of manganese and preserve, although strongly suppressed, the capacity to grow in the medium containing 5.1 mM MnCl$_{2}$. The concentrations of manganese that did not inhibit growth considerably altered cell ultrastructure and changed the protein profile. The accumulation of manganese in S. platensis cells was proportional to the period of culturing and manganese concentration in the medium, reaching a plateau at about 2.5 mM. A threshold intracellular concentration of this metal is estimated as 28 ± 3 μmol/g dry wt. The fractionation of the manganese-enriched biomass demonstrated that the major portion of intracellular manganese (over 90%) was found in the total protein fraction. The chromatographic separation of the soluble protein fraction showed that manganese was incorporated into proteins with molecular weight of 5 to 15 kD. Dry biomass adsorbed manganese cations; this evidence seems to indicate a considerable contribution of biosorption to manganese accumulation by S. platensis cells. |
| Starting Page | 800 |
| Ending Page | 806 |
| Page Count | 7 |
| File Format | |
| ISSN | 10214437 |
| Journal | Russian Journal of Plant Physiology |
| Volume Number | 53 |
| Issue Number | 6 |
| e-ISSN | 16083407 |
| Language | English |
| Publisher | Nauka/Interperiodica |
| Publisher Date | 2006-01-01 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Spirulina platensis manganese accumulation growth ultrastructure intracellular distribution Plant Sciences Plant Physiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
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