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  Unusual polyphosphate inclusions observed in a marine Beggiatoa strain

Brock, J., Rhiel, E., Beutler, M., Salman, V., & Schulz-Vogt, H. N. (2012). Unusual polyphosphate inclusions observed in a marine Beggiatoa strain. Antonie van Leeuwenhoek International Journal of General and Molecular Microbiology, 101(2), 347-357.

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 Creators:
Brock, J.1, Author           
Rhiel, E., Author
Beutler, M.2, Author           
Salman, V.1, Author           
Schulz-Vogt, H. N.3, Author           
Affiliations:
1Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481695              
2Permanent Research Group Microsensor, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481711              
3Ecophysiology Group, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481700              

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 Abstract: Sulfide-oxidizing bacteria of the genus Beggiatoa are known to accumulate phosphate intracellularly as polyphosphate but little is known about the structure and properties of these inclusions. Application of different staining techniques revealed the presence of unusually large polyphosphate inclusions in the marine Beggiatoa strain 35Flor. The inclusions showed a co-occurrence of polyphosphate, calcium and magnesium when analyzed by scanning electron microscopy and energy dispersive X-ray analysis. Similar to polyphosphate-enriched acidocalcisomes of prokaryotes and eukaryotes, the polyphosphate inclusions in Beggiatoa strain 35Flor are enclosed by a lipid layer and store cations. However, they are not notably acidic. 16S rRNA gene sequence-based phylogenetic reconstruction showed an affiliation of Beggiatoa strain 35Flor to a monophyletic branch, comprising other narrow vacuolated and non-vacuolated Beggiatoa species. The polyphosphate inclusions represent a new type of membrane surrounded storage compartment within the genus Beggiatoa, distinct from the mostly nitrate-storing vacuoles known from other marine sulfide-oxidizing bacteria of the family Beggiatoaceae.

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Language(s): eng - English
 Dates: 2012-02
 Publication Status: Issued
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 634733
ISI: 000299293900013
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Title: Antonie van Leeuwenhoek International Journal of General and Molecular Microbiology
  Other : Antonie Van Leeuwenhoek
Source Genre: Journal
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Publ. Info: Dordrecht [etc.] : Kluwer Academic Publishers [etc.]
Pages: - Volume / Issue: 101 (2) Sequence Number: - Start / End Page: 347 - 357 Identifier: ISSN: 0003-6072
CoNE: https://pure.mpg.de/cone/journals/resource/954925380994