Source:http://linkedlifedata.com/resource/pubmed/id/16348459
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:16348459 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:16348459 | lifeskim:mentions | umls-concept:C0599840 | lld:lifeskim |
| pubmed-article:16348459 | lifeskim:mentions | umls-concept:C0065646 | lld:lifeskim |
| pubmed-article:16348459 | lifeskim:mentions | umls-concept:C1522492 | lld:lifeskim |
| pubmed-article:16348459 | pubmed:issue | 4 | lld:pubmed |
| pubmed-article:16348459 | pubmed:dateCreated | 2010-6-25 | lld:pubmed |
| pubmed-article:16348459 | pubmed:abstractText | Microbial manganese oxidation was demonstrated at high Mn concentrations (5 g/liter) in bacterial cultures in the presence of a microalga. The structure of the oxide produced varied depending on the bacterial strain and mode of culture. A nonaxenic, acid-tolerant microalga, a Chlamydomonas sp., was found to mediate formation of manganite (gamma-MnOOH). Bacteria isolated from associations with crude cultures of this alga grown in aerated bioreactors formed disordered gamma-MnO(2) from Mn at concentrations of 5 g/liter over 1 month, yielding 3.3 g of a semipure oxide per liter. All algal-bacterial cultures removed Mn from solution, but only those with the highest removal rates formed an insoluble oxide. While the alga was an essential component of the reaction, a Pseudomonas sp. was found to be primarily responsible for the formation of a manganese precipitate. Medium components-algal biomass and urea-showed optima at 5.7 and 10 g/liters, respectively. The scaled-up culture (50 times) gave a yield of 22.3 g (53 mg/liter/day from a 15-liter culture) of semipure disordered gamma-MnO(2), identified by X-ray diffraction and Fourier transform infrared (FTIR) spectroscopy, and had a manganese oxide O/Mn ratio of 1.92. The Mn(IV) content in the oxide was low (30.5%) compared with that of mined or chemically formed gamma-MnO(2) (ca. 50%). The shortfall in the bacterial oxide manganese content was due to biological and inorganic contaminants. FTIR spectroscopy, transmission electron microscopy, and electron diffraction studies have identified manganite as a likely intermediate product in the formation of disordered gamma-MnO(2). | lld:pubmed |
| pubmed-article:16348459 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:16348459 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:16348459 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:16348459 | pubmed:language | eng | lld:pubmed |
| pubmed-article:16348459 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:16348459 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:16348459 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:16348459 | pubmed:issn | 0099-2240 | lld:pubmed |
| pubmed-article:16348459 | pubmed:author | pubmed-author:MadgwickJ CJC | lld:pubmed |
| pubmed-article:16348459 | pubmed:author | pubmed-author:GreeneA CAC | lld:pubmed |
| pubmed-article:16348459 | pubmed:issnType | lld:pubmed | |
| pubmed-article:16348459 | pubmed:volume | 57 | lld:pubmed |
| pubmed-article:16348459 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:16348459 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:16348459 | pubmed:pagination | 1114-20 | lld:pubmed |
| pubmed-article:16348459 | pubmed:dateRevised | 2010-9-20 | lld:pubmed |
| pubmed-article:16348459 | pubmed:year | 1991 | lld:pubmed |
| pubmed-article:16348459 | pubmed:articleTitle | Microbial formation of manganese oxides. | lld:pubmed |
| pubmed-article:16348459 | pubmed:affiliation | Department of Biotechnology, University of New South Wales, P.O. Box 1, Kensington, New South Wales 2033, Australia. | lld:pubmed |
| pubmed-article:16348459 | pubmed:publicationType | Journal Article | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:16348459 | lld:pubmed |