Academic Journal

Physiological and taxonomic description of the novel autotrophic, metal oxidizing bacterium, Pseudogulbenkiania sp. strain 2002.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Physiological and taxonomic description of the novel autotrophic, metal oxidizing bacterium, Pseudogulbenkiania sp. strain 2002.
Συγγραφείς: Weber, Karrie, Hedrick, David, Peacock, Aaron, Thrash, J., White, David, Achenbach, Laurie, Coates, John
Πηγή: Applied Microbiology & Biotechnology; Jun2009, Vol. 83 Issue 3, p555-565, 11p, 2 Diagrams, 3 Charts, 3 Graphs
Θεματικοί όροι: Autotrophic bacteria, Oxidation, Iron, Anaerobic bacteria, Nitrates, Bioremediation, Uranium, Fatty acids, Organic acids, Nitrous oxide, Neisseriaceae, Lake sediments
Περίληψη: A lithoautotrophic, Fe(II) oxidizing, nitrate-reducing bacterium, strain 2002 (ATCC BAA-1479; =DSM 18807), was isolated as part of a study on nitrate-dependent Fe(II) oxidation in freshwater lake sediments. Here we provide an in-depth phenotypic and phylogenetic description of the isolate. Strain 2002 is a gram-negative, non-spore forming, motile, rod-shaped bacterium which tested positive for oxidase, catalase, and urease. Analysis of the complete 16S rRNA gene sequence placed strain 2002 in a clade within the family Neisseriaceae in the order Nessieriales of the Betaproteobacteria 99.3% similar to Pseudogulbenkiania subflava. Similar to P. sublfava, predominant whole cell fatty acids were identified as 16:17c, 42.4%, and 16:0, 34.1%. Whole cell difference spectra of the Fe(II) reduced minus nitrate oxidized cyctochrome content revealed a possible role of c-type cytochromes in nitrate-dependent Fe(II) oxidation. Strain 2002 was unable to oxidize aqueous or solid-phase Mn(II) with nitrate as the electron acceptor. In addition to lithotrophic growth with Fe(II), strain 2002 could alternatively grow heterotrophically with long-chain fatty acids, simple organic acids, carbohydrates, yeast extract, or casamino acids. Nitrate, nitrite, nitrous oxide, and oxygen also served as terminal electron acceptors with acetate as the electron donor. [ABSTRACT FROM AUTHOR]
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Βάση Δεδομένων: Complementary Index
Περιγραφή
ISSN:01757598
DOI:10.1007/s00253-009-1934-7