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The effect of gluconic acid secretion by phosphate-solubilizing Pseudomonas putida bacteria on dissolution of pyromorphite Pb_{5}(PO_{4})_{3}Cl and Pb remobilization
pyromorphite
P-induced method
gluconic acid
Pb remobilization
Pseudomonas putida
The purpose of this study was to investigate the effect of bacterially produced gluconic acid on the dissolution of pyromorphite and Pb remobilization. Pyromorphite Pb_5(PO_4)_3Cl is formed as a product of the phosphate-induced treatment of Pb-contaminated sites. This very stable mineral greatly decreases the bioavailability of Pb. In this study, bacterial and abiotic batch experiments on the dissolution of pyromorphite were carried out. In the microbial experiments, the mineral was dissolved in the presence of the phosphate solubilizing soil bacterium, Pseudomonas putida. The bacterial growth medium was supplemented with glucose, which under natural conditions can be supplied to microbes via symbiosis with plants. P. putida acquired P from pyromorphite and enhanced its dissolution. Elevated Pb concentrations were observed in the suspensions with bacteria. The bacterial secretion of 16.5 mM gluconic acid played a significant role in Pb remobilization; the pH of the solution dropped down from an initial 7.4 to 3.5. In the abiotic experiments, pyromorphite was dissolved at several concentrations of gluconic acid and at an acidic to neutral pH range. Both acidification and formation of stable Ph-gluconate ligands enhanced the dissolution of pyromorphite and caused Pb remobilization.
dc.abstract.other | The purpose of this study was to investigate the effect of bacterially produced gluconic acid on the dissolution of pyromorphite and Pb remobilization. Pyromorphite Pb_5(PO_4)_3Cl is formed as a product of the phosphate-induced treatment of Pb-contaminated sites. This very stable mineral greatly decreases the bioavailability of Pb. In this study, bacterial and abiotic batch experiments on the dissolution of pyromorphite were carried out. In the microbial experiments, the mineral was dissolved in the presence of the phosphate solubilizing soil bacterium, Pseudomonas putida. The bacterial growth medium was supplemented with glucose, which under natural conditions can be supplied to microbes via symbiosis with plants. P. putida acquired P from pyromorphite and enhanced its dissolution. Elevated Pb concentrations were observed in the suspensions with bacteria. The bacterial secretion of 16.5 mM gluconic acid played a significant role in Pb remobilization; the pH of the solution dropped down from an initial 7.4 to 3.5. In the abiotic experiments, pyromorphite was dissolved at several concentrations of gluconic acid and at an acidic to neutral pH range. Both acidification and formation of stable Ph-gluconate ligands enhanced the dissolution of pyromorphite and caused Pb remobilization. | pl |
dc.affiliation | Wydział Biochemii, Biofizyki i Biotechnologii : Zakład Biologii Komórki | pl |
dc.contributor.author | Topolska, Justyna | pl |
dc.contributor.author | Borowicz, Paweł | pl |
dc.contributor.author | Manecki, Maciej | pl |
dc.contributor.author | Bajda, Tomasz | pl |
dc.contributor.author | Kaschabek, Stefan | pl |
dc.contributor.author | Merkel, Broder J. | pl |
dc.date.accession | 2015-03-24 | pl |
dc.date.accessioned | 2015-04-21T11:56:53Z | |
dc.date.available | 2015-04-21T11:56:53Z | |
dc.date.issued | 2013 | pl |
dc.date.openaccess | 0 | |
dc.description.accesstime | w momencie opublikowania | |
dc.description.additional | Bibliogr. s. 350-351 | pl |
dc.description.admin | [AB] Borowicz, Paweł 50000143 | |
dc.description.number | 4 | pl |
dc.description.physical | 343-351 | pl |
dc.description.version | ostateczna wersja wydawcy | |
dc.description.volume | 83 | pl |
dc.identifier.eissn | 2300-8512 | pl |
dc.identifier.issn | 0208-9068 | pl |
dc.identifier.project | ROD UJ / P | pl |
dc.identifier.uri | http://ruj.uj.edu.pl/xmlui/handle/item/5399 | |
dc.identifier.weblink | http://www.asgp.pl/83_4_343_351 | pl |
dc.language | eng | pl |
dc.language.container | eng | pl |
dc.rights | Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 4.0 Międzynarodowa | * |
dc.rights.licence | OTHER | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.pl | * |
dc.share.type | otwarte czasopismo | |
dc.subject.en | pyromorphite | pl |
dc.subject.en | P-induced method | pl |
dc.subject.en | gluconic acid | pl |
dc.subject.en | Pb remobilization | pl |
dc.subject.en | Pseudomonas putida | pl |
dc.subtype | Article | pl |
dc.title | The effect of gluconic acid secretion by phosphate-solubilizing Pseudomonas putida bacteria on dissolution of pyromorphite Pb_{5}(PO_{4})_{3}Cl and Pb remobilization | pl |
dc.title.journal | Annales Societatis Geologorum Poloniae | pl |
dc.type | JournalArticle | pl |
dspace.entity.type | Publication |
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